The number of constituents represented by each district is determined through the process of redistricting, which typically occurs every 10 years after the U.S. Census is conducted. The principle of "one person, one vote" is used to ensure that each district has roughly the same number of constituents, in order to ensure equal representation for all residents. Various methods and criteria, including population size, geographic boundaries, communities of interest, and political considerations, are used to draw district lines and decide the number of constituents in each district.
