Census Bureau

Congressional Apportionment--What It Is

Seal for the U.S. House of Representatives "Apportionment" is the process of dividing the 435 memberships, or seats, in the House of Representatives among the 50 states--Census Bureau conducts the census at 10-year intervals. At the conclusion of each census, it uses the results for calculating the number of House memberships each state is entitled to have. The latter process is the initial use of the basic results of each census.

While there are numerous other uses for census data, a second major use is for geographically defining state legislative districts (see Census 2000 Redistricting).

Go to: "Why it's done"
Go to: "Congressional Apportionment main page"