Why Is the Apportionment Formula Used?

In practice, we use this method to determine the number of seats each state receives by: Calculating a set of “priority values” for each state, based on the state's apportionment population.

What is the purpose of apportionment?

Apportionment is one of the most important functions of the decennial census. Apportionment measures the population so that seats in the U.S. House of Representatives can be correctly apportioned among the states.

How does apportionment work?

"Apportionment" is the process of dividing the 435 memberships, or seats, in the House of Representatives among the 50 states. The Census Bureau conducts the census at 10-year intervals. At the conclusion of each census, the results are used to calculate the number of House memberships to which each state is entitled.

Sarah Jenkins

Sarah Jenkins

Senior Technology Editor & AI Specialist

Sarah Jenkins is a veteran tech journalist with over 12 years of experience covering artificial intelligence, mobile innovations, and digital ethics. Her insights have appeared in leading technology publications worldwide.