The U.S. Census Bureau released the congressional apportionment population counts and number of representatives for each of the 50 states, along with the resident population counts for the nation, the 50 states, the District of Columbia and Puerto Rico. 

The constitutional basis for conducting a census of the population every 10 years is to reapportion the U.S. House of Representatives. Apportionment is the process of distributing the 435 memberships, or seats, in the U.S. House of Representatives among the 50 states based on the apportionment population counts from the 2020 Census. An apportionment has been made by the U.S. Congress based on each decennial census from 1790 to 2020 except for the 1920 Census.

The apportionment population consists of the resident population of the 50 states, plus the overseas federal employees (military and civilian) and their dependents living with them who could be allocated to their home states. The population of the District of Columbia is not included in the apportionment population because it does not have any voting seats in the U.S. House of Representatives. 

The Census Bureau held a virtual news conference to release these results on Monday, April 26, 2021 at 3 p.m. EDT.

• Congressional Apportionment webpage – Contains information and FAQs about apportionment, data from previous decades, and information about the current and former methods for calculating apportionment. A new “2020 Census Apportionment Results” data page will be added that will contain the press release tables and maps, as well as some supplemental tables, including the priority values from the 2020 Census apportionment calculations.
• Apportionment 101 Fact Sheet 
• Apportionment Frequently Asked Questions (FAQs)
• “The U.S. Census and the Amazing Apportionment Machine” Video – Created during the 2010 Census, this video explains the process of apportionment.
• Island Area Census Data Products Update (FAQs)