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List of the most populous counties by U.S. state

The following is a sortable table of the most populous county in each U.S. state and territory. Counties in bold have a population of at least 1 million.


  • Table 1
  • External links 2


State Largest county/parish/municipality Population (2013 estimate) County/parish seat or shire town
Alabama Jefferson 659,479 Birmingham
Alaska Anchorage 300,950 Anchorage
Arizona Maricopa 4,009,412 Phoenix
Arkansas Pulaski 391,284 Little Rock
California Los Angeles 10,017,068 Los Angeles
Colorado El Paso 655,044 Colorado Springs
Connecticut Fairfield 939,904 Bridgeport
Delaware New Castle 549,684 Wilmington
Florida Miami-Dade 2,617,176 Miami
Georgia Fulton 984,293 Atlanta
Hawaii Honolulu 983,429 Honolulu
Idaho Ada 416,464 Boise
Illinois Cook 5,240,700 Chicago
Indiana Marion 928,281 Indianapolis
Iowa Polk 451,677 Des Moines
Kansas Johnson 566,933 Olathe
Kentucky Jefferson 756,832 Louisville
Louisiana East Baton Rouge 445,227 Baton Rouge
Maine Cumberland 285,456 Portland
Maryland Montgomery 1,016,677 Rockville
Massachusetts Middlesex 1,552,802 Cambridge and Lowell
Michigan Wayne 1,775,273 Detroit
Minnesota Hennepin 1,198,778 Minneapolis
Mississippi Hinds 244,899 Jackson
Missouri St. Louis County 1,001,444 Clayton
Montana Yellowstone 154,162 Billings
Nebraska Douglas 531,265 Omaha
Nevada Clark 2,027,868 Las Vegas
New Hampshire Hillsborough 402,922 Manchester and Nashua
New Jersey Bergen 925,328 Hackensack
New Mexico Bernalillo 673,460 Albuquerque
New York Kings 2,592,149 Brooklyn
North Carolina Mecklenburg 990,977 Charlotte
North Dakota Cass 162,829 Fargo
Ohio Cuyahoga 1,268,154 Cleveland
Oklahoma Oklahoma 755,245 Oklahoma City
Oregon Multnomah 759,256 Portland
Pennsylvania Philadelphia 1,553,165 Philadelphia
Rhode Island Providence 628,323 Providence
South Carolina Greenville 474,266 Greenville
South Dakota Minnehaha 179,640 Sioux Falls
Tennessee Shelby 940,764 Memphis
Texas Harris 4,336,853 Houston
Utah Salt Lake 1,063,842 Salt Lake City
Vermont Chittenden 158,504 Burlington
Virginia Fairfax 1,116,897 Fairfax
Washington King 2,044,449 Seattle
West Virginia Kanawha 191,275 Charleston
Wisconsin Milwaukee 956,023 Milwaukee
Wyoming Laramie 95,809 Cheyenne

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