Article I, Section 2 of the Constitution mandates that seats in the House of Representatives be apportioned among the states according to "their respective Numbers" as determined by an actual enumeration—the Census—conducted every 10 years. This creates a direct constitutional chain: Census counts population → Census Bureau calculates apportionment → Congress receives seat redistribution → states redraw districts.
The 2020 Census severely undercounted Latino and Black populations. Latinos were undercounted by about 5% (triple the 2010 rate), and Black Americans by 3.3%. These undercounts cost states with large Latino populations congressional seats: Arizona failed to gain a seat, Florida gained only one instead of two, and Texas received two instead of three. A state losing a seat loses House members, electoral votes, and roughly $150 million in annual federal funding tied to Census population estimates.
Census accuracy directly affects House apportionment, which in turn determines Electoral College votes (since electors equal House seats plus Senate seats). Inaccurate Census counts distort both legislative power and presidential electoral votes for the next decade. Solving Census undercounts requires improved field operations, citizenship question avoidance, and trust-building with communities historically undercounted.
The Census-apportionment connection means accuracy isn't just an administrative detail—it determines who gets represented in Congress and Electoral College power. Undercounts silence communities and shift political power to states counted more accurately.
People sometimes think the Census just gathers data. Actually, Census population counts are the foundation for House apportionment, Electoral College votes, and federal funding formulas. Get the count wrong, and the entire system misfires for 10 years.
The Census-apportionment connection means accuracy isn't just an administrative detail—it determines who gets represented in Congress and Electoral College power. Undercounts silence communities and shift political power to states counted more accurately.
People sometimes think the Census just gathers data. Actually, Census population counts are the foundation for House apportionment, Electoral College votes, and federal funding formulas. Get the count wrong, and the entire system misfires for 10 years.