Why are there 435 represenatives?

The United States House of Representatives has 435 members due to the Apportionment Act of 1911, which established this number as the total for representation based on the population. This cap was set to ensure manageable representation while allowing for population growth. The number of representatives for each state is determined by its population as measured by the decennial census, but the total number remains fixed at 435. Adjustments to individual state representation occur after each census, but the overall total does not exceed this limit.