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Rankings

Each table lists the top 100 counties for one measure. Growth tables include only counties with at least 10,000 residents.

The 100 most populous US counties
  1. Los Angeles County9,757,179
  2. Cook County5,182,617
  3. Harris County5,009,302
 The 100 least populous US counties
  1. Loving County48
  2. Kalawao County81
  3. King County215
 Fastest-growing counties since 2020
  1. Kaufman County36.1 %
  2. Rockwall County27 %
  3. Long County26.5 %
 Counties losing population fastest since 2020
  1. Reeves County-18.9 %
  2. Tallahatchie County-14.1 %
  3. Yazoo County-13.9 %
 Largest net migration gains, 2023
  1. Harris County61,511
  2. Miami-Dade County52,480
  3. Maricopa County39,747
 Largest net migration losses, 2023
  1. Los Angeles County-39,612
  2. Kings County-19,190
  3. Bronx County-16,185
 Counties with the highest birth rate, 2023
  1. Kusilvak Census Area27.8
  2. Dewey County26.1
  3. Ziebach County24.8
 Counties with the highest unemployment rate
  1. Imperial County18.9 %
  2. Kusilvak Census Area17.4 %
  3. Yuma County14.0 %
 Counties with the lowest unemployment rate
  1. Loving County0.7 %
  2. Brule County1.4 %
  3. Hyde County1.4 %
 States ranked by population growth since 2020
  1. Idaho8.8 %
  2. Florida8.5 %
  3. Texas7.3 %
 States ranked by unemployment rate
  1. Nevada5.4 %
  2. California5.3 %
  3. District of Columbia5.3 %