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Congressional districts in the United States are electoral divisions for the purpose of electing members of the United States House of Representatives. The number of voting seats in the House of Representatives is currently set at 435 with each one representing approximately 711,000 people.[1] That number has applied since 1913, excluding a temporary increase to 437 after the admissions of Alaska and Hawaii. The total number of state members is capped by the Reapportionment Act of 1929.[2] In addition, each of the five inhabited U.S. territories and the federal district of Washington, D.C. sends a non-voting delegate to the House of Representatives.

The Bureau of the Census conducts a constitutionally mandated decennial census whose figures are used to determine the number of congressional districts to which each state is entitled, in a process called "apportionment". The 2012 elections were the first to be based on the congressional districts which were defined based on the 2010 United States Census.[3]

Each state is responsible for the redistricting of districts within their state, and several states have one "at-large" division. Redistricting must take place if the number of members changes following a reapportionment, or may take place at any other time if demographics represented in a district have changed substantially. Districts may sometimes retain the same boundaries while changing their district numbers.

The following is a complete list of the 435 current congressional districts for the House of Representatives, and over 200 obsolete districts, and the six current and one obsolete non-voting delegations.

Extremes


  • State with the most: California (53), same as in 2000.
  • 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. Between 1810 and 1820, Delaware had two U.S. Representatives, but they were elected at-large.

Alabama


Alaska


American Samoa


See Non-voting delegations, below.

Arizona


Arkansas


California


Colorado


Connecticut


Delaware


The oldest district in the country, 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 statewide district.

District of Columbia


See Non-voting delegations, below.

Florida


Georgia


Guam


See Non-voting delegations, below.

Hawaii


Idaho


Illinois


Indiana


Iowa


Kansas


Kentucky


Louisiana


Maine


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


Massachusetts


Michigan


Minnesota


Mississippi


Missouri


Montana


Nebraska


Nevada


New Hampshire


New Jersey


New Mexico


New York


North Carolina


North Dakota


Northern Mariana Islands


Ohio


Oklahoma


Oregon


Pennsylvania


Philippines


Puerto Rico


Rhode Island


South Carolina


South Dakota


Tennessee


Texas


U.S. Virgin Islands


Utah


Vermont


Virginia


Washington


West Virginia


Wisconsin


Wyoming


Non-voting delegations


List of current districts by area


This list includes the 435 current voting districts, along with the District of Columbia's non-voting delegation.[10] These geographic values reflect the changes to the Pennsylvania Congressional Districts in 2018.[11]

See also


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