U.S. flag

An official website of the United States government

Skip Header


2020 Census Apportionment Results

Apportionment is the process of dividing the 435 memberships, or seats, in the U.S. House of Representatives among the 50 states. At the conclusion of each decennial census, the results are used to calculate the number of seats to which each state is entitled. Each of the 50 states is entitled to a minimum of one seat in the U.S. House of Representatives.

The 2020 Census apportionment population includes the resident population of the 50 states, plus a count of the U.S. military personnel and federal civilian employees living outside the United States (and their dependents living with them) who can be allocated to a home state. The populations of the District of Columbia and Puerto Rico are not included in the apportionment population because they do not have voting seats in the U.S. House of Representatives.

The calculation methods used through most of the 20th century have been based upon the use of a mathematically determined priority listing of states. Adopted by Congress in 1941 and used each census thereafter, the method of equal proportions also results in a listing of the states according to a priority value—calculated by dividing the population of each state by the geometric mean of its current and next seats—that assigns seats 51 through 435. For more information, see Computing Apportionment.

Table 1. Apportionment Population and Number of Representatives by State: 2020 Census

Table 2. Resident Population for the 50 States, the District of Columbia, and Puerto Rico: 2020 Census

Table 3. Overseas Population for the 50 States and the District of Columbia: 2020 Census

Additional Data

Table A. Apportionment Population, Resident Population, and Overseas Population: 2020 Census and 2010 Census

Table B1. Top Ten Runner-Up States to Almost Gain Another Congressional Seat: 2020 Census

Table B2. Additional Apportionment Population Needed for First Runner-Up State to Gain Another Congressional Seat: 1940 to 2020

Table C1. Number of Seats in U.S. House of Representatives by State: 1910 to 2020

Table C2. Apportionment Population and Number of Seats in U.S. House of Representatives by State: 1910 to 2020

Table D1. Number of Seats Gained and Lost in U.S. House of Representatives by State: 2020 Census

Table D2. Number of Seats Gained and Lost in U.S. House of Representatives by State: 2010 Census

Table E. Numeric and Percent Change in Resident Population of the 50 States, the District of Columbia, and Puerto Rico: 2020 Census and 2010 Census

Number of U.S. Military Personnel, Federal Civilian Personnel, and their Dependents in the Overseas Population for the 50 States and the District of Columbia: 2020 Census

Priority Values for 2020 Census Apportionment

Presentation

Visualizations

Related Information

Related News

Page Last Revised - June 7, 2024
Is this page helpful?
Thumbs Up Image Yes Thumbs Down Image No
NO THANKS
255 characters maximum 255 characters maximum reached
Thank you for your feedback.
Comments or suggestions?

Top

Back to Header