The Constitutional basis for conducting the decennial census is to reapportion the U.S. House of Representatives. Apportionment is the process of dividing the 435 memberships, or seats, in the U.S. House of Representatives among the 50 states.
Read MorePublications
PUBLICATION | NOVEMBER 2011
Congressional Apportionment: 2010
Trends in congressional apportionment and the apportionment population—what it is, who is included, and what method is used to calculate it.
PUBLICATION | JULY 2010
Strength in Numbers: Your Guide to Census 2010 Redistricting Data
This brochure explains where census numbers come from and the role they have in the way states redraw the boundaries of their legislative districts.
PUBLICATION | JULY 2010
Censo del 2010 de Puerto Rico para la Redistribución de los Distritos
Este folleto explica de dónde provienen los números del censo y cómo son usados para determinar los límites de los distritos legislativos en Puerto Rico.
Data
TABLE | DECEMBER 2010
2010 Census Apportionment Results
Congressional seats are apportioned among the 50 states based on the latest decennial Census population counts.
TABLE | 2010
2010 Census: Apportionment Data (Text Version)
2010 Census apportionment for the nation and states.
DATA TOOL | 2010
2010 Census: Apportionment Data Map
This interactive map widget shows 10 decades of apportionment history, current apportionment totals and our changing population through the past century.
Videos
