List of United States congressional districts

This is a complete list of congressional districts for representation in the United States House of Representatives. The quantity (apportionment) and boundaries (redistricting) of districts are determined after each census, although in some cases states have changed the boundaries more than once per census. This list includes the 435 current and over 200 obsolete districts. It also includes 11 future districts created for the 113th Congress for those states gaining Congressional seats. For example, since the 2000 census, Nebraska has had three districts, but it used to have as many as six. Texas currently has 32 districts, but will be adding 4 due to reapportionment as a result of the 2010 census. Other states will lose districts since the number of congressional seats has been set at 435 by statute. In the November 2012 election, Puerto Rico passed a referendum calling for statehood, which could temporarily increase the electoral count by 7 electors if the U.S. Congress allows Puerto Rico to become the 51st state. A state with comparable population size, Oklahoma, has 5 representatives and 2 senators for a total of 7 elector votes. Also included here are non-voting delegations: six current and four obsolete.

The boundaries of districts often shift with each redistricting. Over time, the region and demographics represented in a district can change substantially. Furthermore, districts sometimes retain the same boundaries while changing their district numbers.

Extremes
As of the 2000 census:
 * Average population per district: 646,946 people
 * Districts per state
 * State with the most: California (53)
 * States with the fewest (only one district "At-large"): Alaska, Delaware, Montana, North Dakota, South Dakota, Vermont, and Wyoming. Alaska, Delaware and Wyoming are the only states that have never had more than one district.
 * Area
 * District with the greatest area: Alaska's at-large congressional district
 * District with the greatest area that comprises less than an entire state: Nevada's 2nd congressional district
 * District with the smallest area: New York's 15th congressional district
 * Population
 * District with the most people: Montana's at-large congressional district (905,316)
 * District with the fewest people: Wyoming's at-large congressional district (495,304)
 * Oldest district: Delaware's at-large congressional district (Same geographical borders since 1789)

Alabama
List of all Alabama districts
 * Alabama's 1st congressional district
 * Alabama's 2nd congressional district
 * Alabama's 3rd congressional district
 * Alabama's 4th congressional district
 * Alabama's 5th congressional district
 * Alabama's 6th congressional district
 * Alabama's 7th congressional district
 * Alabama's 8th congressional district, obsolete since 1970 census
 * Alabama's 9th congressional district, obsolete since 1960 census
 * Alabama's 10th congressional district, obsolete since 1930 census
 * Alabama's at-large congressional district, obsolete since 1965
 * Alabama Territory's at-large congressional district, obsolete since statehood

Alaska

 * Alaska's at-large congressional district
 * Alaska Territory's at-large congressional district, obsolete since statehood in 1959

American Samoa
See Non-voting delegations, below.

Arizona
List of all Arizona districts
 * Arizona's 1st congressional district
 * Arizona's 2nd congressional district
 * Arizona's 3rd congressional district
 * Arizona's 4th congressional district
 * Arizona's 5th congressional district
 * Arizona's 6th congressional district
 * Arizona's 7th congressional district
 * Arizona's 8th congressional district
 * Arizona's 9th congressional district, to be seated in 2013
 * Arizona's at-large congressional district, obsolete since 1949
 * Arizona Territory's at-large congressional district, obsolete since statehood

Arkansas
List of all Arkansas districts
 * Arkansas's 1st congressional district
 * Arkansas's 2nd congressional district
 * Arkansas's 3rd congressional district
 * Arkansas's 4th congressional district
 * Arkansas's 5th congressional district, obsolete since 1960 census
 * Arkansas's 6th congressional district, obsolete since 1960 census
 * Arkansas's 7th congressional district, obsolete since 1950 census
 * Arkansas's at-large congressional district, obsolete since 1885
 * Arkansas Territory's at-large congressional district, obsolete since statehood

California
List of all California Districts


 * California's 1st congressional district
 * California's 2nd congressional district
 * California's 3rd congressional district
 * California's 4th congressional district
 * California's 5th congressional district
 * California's 6th congressional district
 * California's 7th congressional district
 * California's 8th congressional district
 * California's 9th congressional district
 * California's 10th congressional district
 * California's 11th congressional district
 * California's 12th congressional district
 * California's 13th congressional district
 * California's 14th congressional district
 * California's 15th congressional district
 * California's 16th congressional district
 * California's 17th congressional district
 * California's 18th congressional district


 * California's 19th congressional district
 * California's 20th congressional district
 * California's 21st congressional district
 * California's 22nd congressional district
 * California's 23rd congressional district
 * California's 24th congressional district
 * California's 25th congressional district
 * California's 26th congressional district
 * California's 27th congressional district
 * California's 28th congressional district
 * California's 29th congressional district
 * California's 30th congressional district
 * California's 31st congressional district
 * California's 32nd congressional district
 * California's 33rd congressional district
 * California's 34th congressional district
 * California's 35th congressional district
 * California's 36th congressional district


 * California's 37th congressional district
 * California's 38th congressional district
 * California's 39th congressional district
 * California's 40th congressional district
 * California's 41st congressional district
 * California's 42nd congressional district
 * California's 43rd congressional district
 * California's 44th congressional district
 * California's 45th congressional district
 * California's 46th congressional district
 * California's 47th congressional district
 * California's 48th congressional district
 * California's 49th congressional district
 * California's 50th congressional district
 * California's 51st congressional district
 * California's 52nd congressional district
 * California's 53rd congressional district
 * California's at-large congressional district, obsolete since 1885

Colorado
List of all Colorado districts
 * Colorado's 1st congressional district
 * Colorado's 2nd congressional district
 * Colorado's 3rd congressional district
 * Colorado's 4th congressional district
 * Colorado's 5th congressional district
 * Colorado's 6th congressional district
 * Colorado's 7th congressional district
 * Colorado's at-large congressional district, obsolete since 1915
 * Territory, obsolete since statehood in 1876

Connecticut
List of all Connecticut districts
 * Connecticut's 1st congressional district
 * Connecticut's 2nd congressional district
 * Connecticut's 3rd congressional district
 * Connecticut's 4th congressional district
 * Connecticut's 5th congressional district
 * Connecticut's 6th congressional district, obsolete since 2000 census
 * Connecticut's at-large congressional district, obsolete since 1965

Delaware
List of all Delaware districts
 * Delaware's at-large congressional district, the oldest district in the country. Since 1787, it has never changed its shape or size.

From 1813 to 1823, Delaware had two representatives — both chosen at-large on a general ticket from the same state-wide district.

District of Columbia
See Non-voting delegations, below.

Florida



 * Florida's 1st congressional district
 * Florida's 2nd congressional district
 * Florida's 3rd congressional district
 * Florida's 4th congressional district
 * Florida's 5th congressional district
 * Florida's 6th congressional district
 * Florida's 7th congressional district
 * Florida's 8th congressional district
 * Florida's 9th congressional district
 * Florida's 10th congressional district
 * Florida's 11th congressional district
 * Florida's 12th congressional district
 * Florida's 13th congressional district
 * Florida's 14th congressional district


 * Florida's 15th congressional district
 * Florida's 16th congressional district
 * Florida's 17th congressional district
 * Florida's 18th congressional district
 * Florida's 19th congressional district
 * Florida's 20th congressional district
 * Florida's 21st congressional district
 * Florida's 22nd congressional district
 * Florida's 23rd congressional district
 * Florida's 24th congressional district
 * Florida's 25th congressional district
 * Florida's 26th congressional district, to be seated in 2013
 * Florida's 27th congressional district, to be seated in 2013
 * Florida's at-large congressional district, obsolete since 1937.
 * Territory, obsolete since statehood

Georgia
Georgia was redistricted in 2007.

List of all Georgia districts
 * Georgia's 1st congressional district
 * Georgia's 2nd congressional district
 * Georgia's 3rd congressional district
 * Georgia's 4th congressional district
 * Georgia's 5th congressional district
 * Georgia's 6th congressional district
 * Georgia's 7th congressional district
 * Georgia's 8th congressional district
 * Georgia's 9th congressional district
 * Georgia's 10th congressional district
 * Georgia's 11th congressional district
 * Georgia's 12th congressional district
 * Georgia's 13th congressional district
 * Georgia's 14th congressional district, to be seated in 2013
 * Georgia's at-large congressional district, obsolete since 1885.

Guam
See Non-voting delegations, below.

Hawaii
List of all Hawaii districts
 * Hawaii's 1st congressional district
 * Hawaii's 2nd congressional district
 * Hawaii's at-large congressional district, obsolete since 1971.
 * Territory, obsolete since statehood in 1959

Idaho
List of all Idaho districts
 * Idaho's 1st congressional district
 * Idaho's 2nd congressional district
 * Idaho's at-large congressional district, obsolete since 1919
 * Territory, obsolete since statehood

Illinois
List of all Illinois districts


 * Illinois's 1st congressional district
 * Illinois's 2nd congressional district
 * Illinois's 3rd congressional district
 * Illinois's 4th congressional district
 * Illinois's 5th congressional district
 * Illinois's 6th congressional district
 * Illinois's 7th congressional district
 * Illinois's 8th congressional district
 * Illinois's 9th congressional district
 * Illinois's 10th congressional district
 * Illinois's 11th congressional district
 * Illinois's 12th congressional district
 * Illinois's 13th congressional district
 * Illinois's 14th congressional district


 * Illinois's 15th congressional district
 * Illinois's 16th congressional district
 * Illinois's 17th congressional district
 * Illinois's 18th congressional district
 * Illinois's 19th congressional district, to become obsolete in 2013
 * Illinois's 20th congressional district, obsolete since 2000 census
 * Illinois's 21st congressional district, obsolete since 1990 census
 * Illinois's 22nd congressional district, obsolete since 1990 census
 * Illinois's 23rd congressional district, obsolete since 1980 census
 * Illinois's 24th congressional district, obsolete since 1980 census
 * Illinois's 25th congressional district, obsolete since 1960 census
 * Illinois's 26th congressional district, obsolete since 1950 census
 * Illinois's at-large congressional district, obsolete since 1849
 * Illinois Territory's at-large congressional district, obsolete since December 3, 1818

Indiana
List of all Indiana Districts


 * Indiana's 1st congressional district
 * Indiana's 2nd congressional district
 * Indiana's 3rd congressional district
 * Indiana's 4th congressional district
 * Indiana's 5th congressional district
 * Indiana's 6th congressional district
 * Indiana's 7th congressional district


 * Indiana's 8th congressional district
 * Indiana's 9th congressional district
 * Indiana's 10th congressional district, obsolete since 2000 census
 * Indiana's 11th congressional district, obsolete since 1980 census
 * Indiana's 12th congressional district, obsolete since 1940 census
 * Indiana's 13th congressional district, obsolete since 1930 census
 * Indiana's at-large congressional district, obsolete since 1875
 * Indiana Territory's at-large congressional district, obsolete since December 11, 1816

Iowa
List of all Iowa Districts


 * Iowa's 1st congressional district
 * Iowa's 2nd congressional district
 * Iowa's 3rd congressional district
 * Iowa's 4th congressional district
 * Iowa's 5th congressional district, to become obsolete in 2013


 * Iowa's 6th congressional district, obsolete since 1990 census
 * Iowa's 7th congressional district, obsolete since 1970 census
 * Iowa's 8th congressional district, obsolete since 1960 census
 * Iowa's 9th congressional district, obsolete since 1940 census
 * Iowa's 10th congressional district, obsolete since 1930 census
 * Iowa's 11th congressional district, obsolete since 1930 census
 * Iowa's at-large congressional district, obsolete since 1847
 * Iowa Territory's at-large congressional district, obsolete since 1846

Kansas
List of all Kansas districts
 * Kansas's 1st congressional district
 * Kansas's 2nd congressional district
 * Kansas's 3rd congressional district
 * Kansas's 4th congressional district
 * Kansas's 5th congressional district, obsolete since 1990 census
 * Kansas's 6th congressional district, obsolete since 1960 census
 * Kansas's 7th congressional district, obsolete since 1940 census
 * Kansas's 8th congressional district, obsolete since 1930 census
 * Kansas's at-large congressional district, obsolete
 * Kansas Territory's at-large congressional district, obsolete

Kentucky
List of all Kentucky Districts


 * Kentucky's 1st congressional district
 * Kentucky's 2nd congressional district
 * Kentucky's 3rd congressional district
 * Kentucky's 4th congressional district
 * Kentucky's 5th congressional district
 * Kentucky's 6th congressional district


 * Kentucky's 7th congressional district, obsolete since 1990 census
 * Kentucky's 8th congressional district, obsolete since 1960 census
 * Kentucky's 9th congressional district, obsolete since 1950 census
 * Kentucky's 10th congressional district, obsolete since 1930 census
 * Kentucky's 11th congressional district, obsolete since 1930 census
 * Kentucky's 12th congressional district, obsolete since 1840 census
 * Kentucky's 13th congressional district, obsolete since 1840 census
 * Kentucky's at-large congressional district, obsolete since 1935

Louisiana
List of all Louisiana districts
 * Louisiana's 1st congressional district
 * Louisiana's 2nd congressional district
 * Louisiana's 3rd congressional district
 * Louisiana's 4th congressional district
 * Louisiana's 5th congressional district
 * Louisiana's 6th congressional district
 * Louisiana's 7th congressional district, to become obsolete in 2013
 * Louisiana's 8th congressional district, obsolete since 1990 census
 * Louisiana's at-large congressional district, obsolete since 1875
 * Orleans Territory's at-large congressional district, obsolete since statehood

Maine
List of all Maine districts
 * Maine's 1st congressional district
 * Maine's 2nd congressional district
 * Maine's 3rd congressional district, obsolete since 1960 census
 * Maine's 4th congressional district, obsolete since 1930 census
 * Maine's 5th congressional district, obsolete since 1880 census
 * Maine's 6th congressional district, obsolete since 1860 census
 * Maine's 7th congressional district, obsolete since 1850 census
 * Maine's 8th congressional district, obsolete since 1840 census
 * Maine's at-large congressional district, 1820-1821 and 1883–1885 only

Until 1820, Maine was part of Massachusetts. After the 1810 census, Massachusetts was allocated 20 districts. Seven Massachusetts districts (then numbered 14 through 20) were credited to Maine soon after it became a state in 1820. See District of Maine.

Maryland

 * Maryland's 1st congressional district
 * Maryland's 2nd congressional district
 * Maryland's 3rd congressional district
 * Maryland's 4th congressional district
 * Maryland's 5th congressional district
 * Maryland's 6th congressional district
 * Maryland's 7th congressional district
 * Maryland's 8th congressional district
 * Maryland's at-large congressional district, 1963-1967 only

Massachusetts
List of all Massachusetts Districts


 * Massachusetts's 1st congressional district
 * Massachusetts's 2nd congressional district
 * Massachusetts's 3rd congressional district
 * Massachusetts's 4th congressional district
 * Massachusetts's 5th congressional district
 * Massachusetts's 6th congressional district
 * Massachusetts's 7th congressional district
 * Massachusetts's 8th congressional district
 * Massachusetts's 9th congressional district
 * Massachusetts's 10th congressional district, to become obsolete in 2013


 * Massachusetts's 11th congressional district, obsolete since 1990 census
 * Massachusetts's 12th congressional district, obsolete since 1980 census
 * Massachusetts's 13th congressional district, obsolete since 1960 census
 * Massachusetts's 14th congressional district, obsolete since 1960 census
 * Massachusetts's 15th congressional district, obsolete since 1940 census
 * Massachusetts's 16th congressional district, obsolete since 1930 census
 * Massachusetts's 17th congressional district, obsolete since 1820 move to Maine
 * Massachusetts's 18th congressional district, obsolete since 1820 move to Maine
 * Massachusetts's 19th congressional district, obsolete since 1820 move to Maine
 * Massachusetts's 20th congressional district, obsolete since 1820 move to Maine
 * Massachusetts's at-large congressional district, 1793-1795 only

Michigan
List of all Michigan Districts


 * Michigan's 1st congressional district
 * Michigan's 2nd congressional district
 * Michigan's 3rd congressional district
 * Michigan's 4th congressional district
 * Michigan's 5th congressional district
 * Michigan's 6th congressional district
 * Michigan's 7th congressional district
 * Michigan's 8th congressional district
 * Michigan's 9th congressional district
 * Michigan's 10th congressional district


 * Michigan's 11th congressional district
 * Michigan's 12th congressional district
 * Michigan's 13th congressional district
 * Michigan's 14th congressional district
 * Michigan's 15th congressional district, to become obsolete in 2013
 * Michigan's 16th congressional district, obsolete since 2000 census
 * Michigan's 17th congressional district, obsolete since 1990 census
 * Michigan's 18th congressional district, obsolete since 1990 census
 * Michigan's 19th congressional district, obsolete since 1980 census
 * Michigan's at-large congressional district, obsolete since 1965
 * Michigan Territory's at-large congressional district, obsolete since 1837

Minnesota
List of all Minnesota districts
 * Minnesota's 1st congressional district
 * Minnesota's 2nd congressional district
 * Minnesota's 3rd congressional district
 * Minnesota's 4th congressional district
 * Minnesota's 5th congressional district
 * Minnesota's 6th congressional district
 * Minnesota's 7th congressional district
 * Minnesota's 8th congressional district
 * Minnesota's 9th congressional district, obsolete since 1960 census
 * Minnesota's 10th congressional district, obsolete since 1930 census
 * Minnesota's at-large congressional district, obsolete since 1935
 * Minnesota Territory's at-large congressional district, obsolete since 1858

Mississippi
List of all Mississippi districts
 * Mississippi's 1st congressional district
 * Mississippi's 2nd congressional district
 * Mississippi's 3rd congressional district
 * Mississippi's 4th congressional district
 * Mississippi's 5th congressional district, obsolete since 2000 census
 * Mississippi's 6th congressional district, obsolete since 1960 census
 * Mississippi's 7th congressional district, obsolete since 1950 census
 * Mississippi's 8th congressional district, obsolete since 1930 census
 * Mississippi's at-large congressional district, obsolete since 1855
 * Mississippi Territory's at-large congressional district, obsolete since statehood in 1817

Missouri
List of all Missouri districts


 * Missouri's 1st congressional district
 * Missouri's 2nd congressional district
 * Missouri's 3rd congressional district
 * Missouri's 4th congressional district
 * Missouri's 5th congressional district
 * Missouri's 6th congressional district
 * Missouri's 7th congressional district
 * Missouri's 8th congressional district,
 * Missouri's 9th congressional district, to become obsolete in 2013


 * Missouri's 10th congressional district, obsolete since 1980 census
 * Missouri's 11th congressional district, obsolete since 1960 census
 * Missouri's 12th congressional district, obsolete since 1950 census
 * Missouri's 13th congressional district, obsolete since 1950 census
 * Missouri's 14th congressional district, obsolete since 1930 census
 * Missouri's 15th congressional district, obsolete since 1930 census
 * Missouri's 16th congressional district, obsolete since 1930 census
 * Missouri's at-large congressional district, obsolete since 1935
 * Missouri Territory's at-large congressional district, obsolete since statehood in 1821

Montana

 * Montana's at-large congressional district
 * Montana's 1st congressional district, obsolete since 1990 census
 * Montana's 2nd congressional district, obsolete since 1990 census
 * Montana Territory's at-large congressional district, obsolete since statehood in 1889

Nebraska
List of all Nebraska districts
 * Nebraska's 1st congressional district
 * Nebraska's 2nd congressional district
 * Nebraska's 3rd congressional district
 * Nebraska's 4th congressional district, obsolete since 1960 census
 * Nebraska's 5th congressional district, obsolete since 1940 census
 * Nebraska's 6th congressional district, obsolete since 1930 census
 * Nebraska's at-large congressional district, obsolete since 1883
 * Nebraska Territory's at-large congressional district, obsolete since statehood

Nevada
List of all Nevada districts
 * Nevada's 1st congressional district
 * Nevada's 2nd congressional district
 * Nevada's 3rd congressional district
 * Nevada's 4th congressional district to be seated in 2013
 * At-large obsolete since 1983
 * Territory obsolete since statehood in 1864

New Hampshire
List of all New Hampshire districts
 * New Hampshire's 1st congressional district
 * New Hampshire's 2nd congressional district
 * New Hampshire's 3rd congressional district, obsolete since 1880 census
 * New Hampshire's 4th congressional district, obsolete since 1850 census
 * New Hampshire's at-large congressional district, replaced by single-member-district representation in 1847

New Jersey
List of all New Jersey districts


 * New Jersey's 1st congressional district
 * New Jersey's 2nd congressional district
 * New Jersey's 3rd congressional district
 * New Jersey's 4th congressional district
 * New Jersey's 5th congressional district
 * New Jersey's 6th congressional district
 * New Jersey's 7th congressional district
 * New Jersey's 8th congressional district


 * New Jersey's 9th congressional district
 * New Jersey's 10th congressional district
 * New Jersey's 11th congressional district
 * New Jersey's 12th congressional district
 * New Jersey's 13th congressional district, to become obsolete in 2013
 * New Jersey's 14th congressional district, obsolete since 1990 census
 * New Jersey's 15th congressional district, obsolete since 1980 census
 * At-large District, obsolete since 1843

New Mexico
List of all New Mexico districts
 * New Mexico's 1st congressional district
 * New Mexico's 2nd congressional district
 * New Mexico's 3rd congressional district
 * At-large District, obsolete since 1969
 * Territory, obsolete since statehood

New York
List of all New York districts


 * New York's 1st congressional district
 * New York's 2nd congressional district
 * New York's 3rd congressional district
 * New York's 4th congressional district
 * New York's 5th congressional district
 * New York's 6th congressional district
 * New York's 7th congressional district
 * New York's 8th congressional district
 * New York's 9th congressional district
 * New York's 10th congressional district
 * New York's 11th congressional district
 * New York's 12th congressional district
 * New York's 13th congressional district
 * New York's 14th congressional district
 * New York's 15th congressional district
 * New York's 16th congressional district
 * New York's 17th congressional district
 * New York's 18th congressional district
 * New York's 19th congressional district
 * New York's 20th congressional district
 * New York's 21st congressional district
 * New York's 22nd congressional district
 * New York's 23rd congressional district


 * New York's 24th congressional district
 * New York's 25th congressional district
 * New York's 26th congressional district
 * New York's 27th congressional district
 * New York's 28th congressional district, to become obsolete in 2013
 * New York's 29th congressional district, to become obsolete in 2013
 * New York's 30th congressional district, obsolete since 2000 census
 * New York's 31st congressional district, obsolete since 2000 census
 * New York's 32nd congressional district, obsolete since 1990 census
 * New York's 33rd congressional district, obsolete since 1990 census
 * New York's 34th congressional district, obsolete since 1990 census
 * New York's 35th congressional district, obsolete since 1980 census
 * New York's 36th congressional district, obsolete since 1980 census
 * New York's 37th congressional district, obsolete since 1980 census
 * New York's 38th congressional district, obsolete since 1980 census
 * New York's 39th congressional district, obsolete since 1980 census
 * New York's 40th congressional district, obsolete since 1970 census
 * New York's 41st congressional district, obsolete since 1970 census
 * New York's 42nd congressional district, obsolete since 1960 census
 * New York's 43rd congressional district, obsolete since 1960 census
 * New York's 44th congressional district, obsolete since 1950 census
 * New York's 45th congressional district, obsolete since 1950 census
 * New York's at-large congressional district, obsolete since 1945

North Carolina
List of all North Carolina districts


 * North Carolina's 1st congressional district
 * North Carolina's 2nd congressional district
 * North Carolina's 3rd congressional district
 * North Carolina's 4th congressional district
 * North Carolina's 5th congressional district
 * North Carolina's 6th congressional district
 * North Carolina's 7th congressional district


 * North Carolina's 8th congressional district
 * North Carolina's 9th congressional district
 * North Carolina's 10th congressional district
 * North Carolina's 11th congressional district
 * North Carolina's 12th congressional district
 * North Carolina's 13th congressional district
 * North Carolina's at-large congressional district, 1883-1885 only

North Dakota
List of all North Dakota districts
 * North Dakota's at-large congressional district
 * North Dakota's 1st congressional district, obsolete since 1970 census
 * North Dakota's 2nd congressional district, obsolete since 1970 census
 * North Dakota's 3rd congressional district, obsolete since 1930 census
 * Dakota Territory's at-large congressional district, obsolete since statehood

Northern Mariana Islands

 * See Non-voting delegations, below.

Ohio
List of all Ohio districts


 * Ohio's 1st congressional district
 * Ohio's 2nd congressional district
 * Ohio's 3rd congressional district
 * Ohio's 4th congressional district
 * Ohio's 5th congressional district
 * Ohio's 6th congressional district
 * Ohio's 7th congressional district
 * Ohio's 8th congressional district
 * Ohio's 9th congressional district
 * Ohio's 10th congressional district
 * Ohio's 11th congressional district
 * Ohio's 12th congressional district
 * Ohio's 13th congressional district


 * Ohio's 14th congressional district
 * Ohio's 15th congressional district
 * Ohio's 16th congressional district
 * Ohio's 17th congressional district, to become obsolete in 2013
 * Ohio's 18th congressional district, to become obsolete in 2013
 * Ohio's 19th congressional district, obsolete since 2000 census
 * Ohio's 20th congressional district, obsolete since 1990 census
 * Ohio's 21st congressional district, obsolete since 1990 census
 * Ohio's 22nd congressional district, obsolete since 1980 census
 * Ohio's 23rd congressional district, obsolete since 1980 census
 * Ohio's 24th congressional district, obsolete since 1970 census
 * Ohio's at-large congressional district, obsolete since January 3, 1965
 * Northwest Territory's at-large congressional district, obsolete since statehood


 * See also History of 19th Century congressional redistricting in Ohio, for a description of which counties were in which districts at the various elections up to 1902.

Oklahoma
List of all Oklahoma districts
 * Oklahoma's 1st congressional district
 * Oklahoma's 2nd congressional district
 * Oklahoma's 3rd congressional district
 * Oklahoma's 4th congressional district
 * Oklahoma's 5th congressional district
 * Oklahoma's 6th congressional district, obsolete since 2000 census
 * Oklahoma's 7th congressional district, obsolete since 1950 census
 * Oklahoma's 8th congressional district, obsolete since 1950 census
 * Oklahoma's at-large congressional district, 1913–1915, 1933–1943 only
 * Oklahoma Territory's at-large congressional district, obsolete since statehood

Oregon
List of all Oregon districts
 * Oregon's 1st congressional district
 * Oregon's 2nd congressional district
 * Oregon's 3rd congressional district
 * Oregon's 4th congressional district
 * Oregon's 5th congressional district
 * Oregon's at-large congressional district, obsolete since March 3, 1893
 * Oregon Territory's at-large congressional district, obsolete since statehood

Pennsylvania
List of all Pennsylvania districts


 * Pennsylvania's 1st congressional district
 * Pennsylvania's 2nd congressional district
 * Pennsylvania's 3rd congressional district
 * Pennsylvania's 4th congressional district
 * Pennsylvania's 5th congressional district
 * Pennsylvania's 6th congressional district
 * Pennsylvania's 7th congressional district
 * Pennsylvania's 8th congressional district
 * Pennsylvania's 9th congressional district
 * Pennsylvania's 10th congressional district
 * Pennsylvania's 11th congressional district
 * Pennsylvania's 12th congressional district
 * Pennsylvania's 13th congressional district
 * Pennsylvania's 14th congressional district
 * Pennsylvania's 15th congressional district
 * Pennsylvania's 16th congressional district
 * Pennsylvania's 17th congressional district
 * Pennsylvania's 18th congressional district
 * Pennsylvania's 19th congressional district, to become obsolete in 2013


 * Pennsylvania's 20th congressional district, obsolete since 2000 census
 * Pennsylvania's 21st congressional district, obsolete since 2000 census
 * Pennsylvania's 22nd congressional district, obsolete since 1990 census
 * Pennsylvania's 23rd congressional district, obsolete since 1990 census
 * Pennsylvania's 24th congressional district, obsolete since 1980 census
 * Pennsylvania's 25th congressional district, obsolete since 1980 census
 * Pennsylvania's 26th congressional district, obsolete since 1970 census
 * Pennsylvania's 27th congressional district, obsolete since 1970 census
 * Pennsylvania's 28th congressional district, obsolete since 1960 census
 * Pennsylvania's 29th congressional district, obsolete since 1960 census
 * Pennsylvania's 30th congressional district, obsolete since 1960 census
 * Pennsylvania's 31st congressional district, obsolete since 1950 census
 * Pennsylvania's 32nd congressional district, obsolete since 1950 census
 * Pennsylvania's 33rd congressional district, obsolete since 1950 census
 * Pennsylvania's 34th congressional district, obsolete since 1940 census
 * Pennsylvania's 35th congressional district, obsolete since 1930 census
 * Pennsylvania's 36th congressional district, obsolete since 1930 census
 * Pennsylvania's at-large congressional district, obsolete since 1795

Philippines

 * See Non-voting delegations, below.

Puerto Rico

 * See Non-voting delegations, below.

Rhode Island
List of all Rhode Island districts
 * Rhode Island's 1st congressional district
 * Rhode Island's 2nd congressional district
 * Rhode Island's 3rd congressional district, obsolete since 1930 census
 * Rhode Island's at-large congressional district, obsolete since March 3, 1843

South Carolina
List of all South Carolina districts
 * South Carolina's 1st congressional district
 * South Carolina's 2nd congressional district
 * South Carolina's 3rd congressional district
 * South Carolina's 4th congressional district
 * South Carolina's 5th congressional district
 * South Carolina's 6th congressional district
 * South Carolina's 7th congressional district, obsolete from 1930 census until regained in 2013 2010 census
 * South Carolina's 8th congressional district, obsolete since 1840 census
 * South Carolina's 9th congressional district, obsolete since 1840 census
 * South Carolina's at-large congressional district, 1873-1875 only

South Dakota
List of all South Dakota districts
 * South Dakota's at-large congressional district
 * South Dakota's 1st congressional district, obsolete since 1980 census
 * South Dakota's 2nd congressional district, obsolete since 1980 census
 * South Dakota's 3rd congressional district, obsolete since 1930 census
 * Dakota Territory's at-large congressional district, obsolete since statehood

Tennessee
List of all Tennessee districts
 * Tennessee's 1st congressional district
 * Tennessee's 2nd congressional district
 * Tennessee's 3rd congressional district
 * Tennessee's 4th congressional district
 * Tennessee's 5th congressional district
 * Tennessee's 6th congressional district
 * Tennessee's 7th congressional district
 * Tennessee's 8th congressional district
 * Tennessee's 9th congressional district
 * Tennessee's 10th congressional district, obsolete since 1950 census
 * Tennessee's 11th congressional district, obsolete since 1850 census
 * Tennessee's 12th congressional district, obsolete since 1840 census
 * Tennessee's 13th congressional district, obsolete since 1840 census
 * Tennessee's at-large congressional district, obsolete since 1875
 * Southwest Territory, obsolete since statehood, June 1, 1796

Texas
List of all Texas districts


 * Texas's 1st congressional district
 * Texas's 2nd congressional district
 * Texas's 3rd congressional district
 * Texas's 4th congressional district
 * Texas's 5th congressional district
 * Texas's 6th congressional district
 * Texas's 7th congressional district
 * Texas's 8th congressional district
 * Texas's 9th congressional district
 * Texas's 10th congressional district
 * Texas's 11th congressional district
 * Texas's 12th congressional district
 * Texas's 13th congressional district
 * Texas's 14th congressional district
 * Texas's 15th congressional district
 * Texas's 16th congressional district
 * Texas's 17th congressional district
 * Texas's 18th congressional district


 * Texas's 19th congressional district
 * Texas's 20th congressional district
 * Texas's 21st congressional district
 * Texas's 22nd congressional district
 * Texas's 23rd congressional district
 * Texas's 24th congressional district
 * Texas's 25th congressional district
 * Texas's 26th congressional district
 * Texas's 27th congressional district
 * Texas's 28th congressional district
 * Texas's 29th congressional district
 * Texas's 30th congressional district
 * Texas's 31st congressional district
 * Texas's 32nd congressional district
 * Texas's 33rd congressional district, to be seated in 2013
 * Texas's 34th congressional district, to be seated in 2013
 * Texas's 35th congressional district, to be seated in 2013
 * Texas's 36th congressional district, to be seated in 2013

Note: Texas's districts were redrawn after the 2000 census for the 108th Congress and again in 2003 for the 109th Congress (see 2003 Texas redistricting). On August 4, 2006, this map changed again because the 23rd district and its surrounding districts had to be redrawn for the 110th Congress (see Texas's 23rd congressional district). This list and map reflect the districts used for the 109th Congress.
 * Texas's at-large congressional district, obsolete since January 3, 1967

U.S. Virgin Islands

 * See Non-voting delegations, below.

Utah
List of all Utah districts
 * Utah's at-large congressional district, obsolete since second seat was added in 1913
 * Utah's 1st congressional district
 * Utah's 2nd congressional district
 * Utah's 3rd congressional district
 * Utah's 4th congressional district, to be seated in 2013
 * Utah Territory's at-large congressional district, obsolete since statehood in 1896

Vermont
List of all Vermont districts
 * Vermont's at-large congressional district
 * Vermont's 1st congressional district, obsolete since 1930 census
 * Vermont's 2nd congressional district, obsolete since 1930 census
 * Vermont's 3rd congressional district, obsolete since 1880 census
 * Vermont's 4th congressional district, obsolete since 1850 census
 * Vermont's 5th congressional district, obsolete since 1840 census
 * Vermont's 6th congressional district, obsolete since 1820 census

Virginia
List of all Virginia districts


 * Virginia's 1st congressional district
 * Virginia's 2nd congressional district
 * Virginia's 3rd congressional district
 * Virginia's 4th congressional district
 * Virginia's 5th congressional district
 * Virginia's 6th congressional district
 * Virginia's 7th congressional district
 * Virginia's 8th congressional district
 * Virginia's 9th congressional district
 * Virginia's 10th congressional district
 * Virginia's 11th congressional district


 * Virginia's 12th congressional district, obsolete since 1860 census
 * Virginia's 13th congressional district, obsolete since 1860 census
 * Virginia's 14th congressional district, obsolete since 1850 census
 * Virginia's 15th congressional district, obsolete since 1850 census
 * Virginia's 16th congressional district, obsolete since 1840 census
 * Virginia's 17th congressional district, obsolete since 1840 census
 * Virginia's 18th congressional district, obsolete since 1840 census
 * Virginia's 19th congressional district, obsolete since 1840 census
 * Virginia's 20th congressional district, obsolete since 1840 census
 * Virginia's 21st congressional district, obsolete since 1840 census
 * Virginia's 22nd congressional district, obsolete since 1830 census
 * Virginia's 23rd congressional district, obsolete since 1820 census
 * Virginia's at-large congressional district, obsolete since 1935

Washington
List of all Washington districts
 * Washington's at-large congressional district, obsolete since 1959
 * Washington's 1st congressional district
 * Washington's 2nd congressional district
 * Washington's 3rd congressional district
 * Washington's 4th congressional district
 * Washington's 5th congressional district
 * Washington's 6th congressional district
 * Washington's 7th congressional district
 * Washington's 8th congressional district
 * Washington's 9th congressional district
 * Washington's 10th congressional district, to be seated in 2013
 * Washington Territory's at-large congressional district, obsolete since statehood, November 11, 1889

West Virginia
List of all West Virginia districts
 * West Virginia's 1st congressional district
 * West Virginia's 2nd congressional district
 * West Virginia's 3rd congressional district
 * West Virginia's 4th congressional district, obsolete since 1990 census
 * West Virginia's 5th congressional district, obsolete since 1970 census
 * West Virginia's 6th congressional district, obsolete since 1960 census
 * West Virginia's at-large congressional district, obsolete since 1917

Wisconsin
List of all Wisconsin districts
 * Wisconsin's 1st congressional district
 * Wisconsin's 2nd congressional district
 * Wisconsin's 3rd congressional district
 * Wisconsin's 4th congressional district
 * Wisconsin's 5th congressional district
 * Wisconsin's 6th congressional district
 * Wisconsin's 7th congressional district
 * Wisconsin's 8th congressional district
 * Wisconsin's 9th congressional district, obsolete since 2000 census
 * Wisconsin's 10th congressional district, obsolete since 1970 census
 * Wisconsin's 11th congressional district, obsolete since 1930 census
 * Wisconsin Territory's at-large congressional district, obsolete since statehood, May 29, 1848

Wyoming

 * Wyoming's at-large congressional district
 * Wyoming Territory's at-large congressional district, obsolete since statehood

Non-voting delegations

 * American Samoa's at-large congressional district
 * District of Columbia's at-large congressional district
 * Guam's at-large congressional district
 * Northern Mariana Islands's at-large congressional district
 * Puerto Rico's at-large congressional district
 * United States Virgin Islands's at-large congressional district
 * Southwest Territory's at-large congressional district, obsolete since statehood as Tennessee June 1, 1796
 * Northwest Territory's at-large congressional district, obsolete since statehood as Ohio March 3, 1803
 * Orleans Territory's at-large congressional district, obsolete since statehood as Louisiana March 3, 1811
 * Dakota Territory's at-large congressional district, obsolete since statehood as North Dakota and South Dakota November 2, 1889
 * Philippines's at-large congressional district, obsolete since independence July 4, 1946

Comparisons

 * Constituency
 * Australia
 * Canada
 * European Parliament
 * Ireland
 * Singapore: Group representation constituency, Non-Constituency Member of Parliament
 * United Kingdom