Special Report

These Are The States That Gained (and Lost) the Most Congressional Seats

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Pennsylvania
> Number of representatives based on 2020 Census: 17
> Change from 2010 apportionment: -1
> Population change 2010-2020: 2.4% — 5th smallest increase
> Resident population, Apr 1, 2020 13,002,700 — 5th largest
> Resident population, Apr 1, 2010 12,702,379 — 6th largest

Source: Sean Pavone / Getty Images

West Virginia
> Number of representatives based on 2020 Census: 2
> Change from 2010 apportionment: -1
> Population change 2010-2020: -3.2% — the largest decline
> Resident population, Apr 1, 2020 1,793,716 — 12th smallest
> Resident population, Apr 1, 2010 1,852,994 — 14th smallest

Source: Kruck20 / Getty Images

Alabama
> Number of representatives based on 2020 Census: 7
> Change from 2010 apportionment: 0
> Population change 2010-2020: 5.1% — 21st smallest increase
> Resident population, Apr 1, 2020 5,024,279 — 24th largest
> Resident population, Apr 1, 2010 4,779,736 — 23rd largest

Source: Chilkoot / Getty Images

Alaska
> Number of representatives based on 2020 Census: 1
> Change from 2010 apportionment: 0
> Population change 2010-2020: 3.3% — 12th smallest increase
> Resident population, Apr 1, 2020 733,391 — 3rd smallest
> Resident population, Apr 1, 2010 710,231 — 4th smallest

Source: Dreamframer / Getty Images

Arizona
> Number of representatives based on 2020 Census: 9
> Change from 2010 apportionment: 0
> Population change 2010-2020: 11.9% — 9th largest increase
> Resident population, Apr 1, 2020 7,151,502 — 14th largest
> Resident population, Apr 1, 2010 6,392,017 — 16th largest