<P> United States congressional apportionment is the process by which seats in the United States House of Representatives are distributed among the 50 states according to the most recent constitutionally mandated decennial census . Each state is apportioned a number of seats which approximately corresponds to its share of the aggregate population of the 50 states . However, every state is constitutionally guaranteed at least one seat . </P> <P> The number of voting seats in the House of Representatives is currently set at 435, and has been since 1913, excluding a temporary increase to 437 after the admissions of Alaska and Hawaii into the Union . The total number of state members is capped by the Reapportionment Act of 1929 . </P>

When does congress reapportion its seats in the house
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