Census Bureau

Congressional Apportionment--Who's Counted

The apportionment calculation is based upon the total resident population (citizens and noncitizens) of the 50 states. In Census 2000, the apportionment population also includes U.S. Armed Forces personnel and federal civilian employees stationed outside the United States (and their dependents living with them) that can be allocated back to a home state. These segments were included in the apportionment population in the 1970 and 1990 censuses, too. The population of the District of Columbia is not included in the apportionment population.

Go to: "How it's calculated"
Go to: "Congressional Apportionment main page"