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US Counties by State

3,144 counties and county-equivalents across the 50 states and DC. Not every state calls them counties — Louisiana has parishes, Alaska boroughs and census areas, Connecticut planning regions — and each is named here as it is named by the Census Bureau.

Every state with the number of county-equivalents it has and the ZIP codes they hold between them.
State County-equivalents ZIP codes
Alabama counties 67 811
Alaska boroughs and census areas 30 273
Arizona counties 15 530
Arkansas counties 75 706
California counties 58 2,593
Colorado counties 64 645
Connecticut planning regions 9 429
Delaware counties 3 96
District of Columbia districts 1 277
Florida counties 67 1,473
Georgia counties 159 952
Hawaii counties 5 137
Idaho counties 44 320
Illinois counties 102 1,575
Indiana counties 92 968
Iowa counties 99 1,055
Kansas counties 105 748
Kentucky counties 120 946
Louisiana parishes 64 719
Maine counties 16 485
Maryland counties and independent cities 24 605
Massachusetts counties 14 685
Michigan counties 83 1,159
Minnesota counties 87 992
Mississippi counties 82 531
Missouri counties and independent cities 115 1,157
Montana counties 56 404
Nebraska counties 93 620
Nevada counties and independent cities 17 254
New Hampshire counties 10 281
New Jersey counties 21 723
New Mexico counties 33 427
New York counties 62 2,154
North Carolina counties 100 1,081
North Dakota counties 53 407
Ohio counties 88 1,416
Oklahoma counties 77 765
Oregon counties 36 481
Pennsylvania counties 67 2,176
Rhode Island counties 5 90
South Carolina counties 46 534
South Dakota counties 66 385
Tennessee counties 95 785
Texas counties 254 2,600
Utah counties 29 347
Vermont counties 14 308
Virginia counties and independent cities 133 1,214
Washington counties 39 716
West Virginia counties 55 851
Wisconsin counties 72 896
Wyoming counties 23 195