The major function of the decennial census is apportionment, the allocation of the 435 seats in the U.S. House of Representatives to states based on their population size. Every 10 years, following reapportionment, states undergo a redistricting process, redrawing congressional (and other) district boundaries to reflect population changes within their state. Individual redistricting guidelines vary from state to state, but basic federal requirements for congressional redistricting mandate equal population size among the redrawn congressional districts…

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