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, federal district, and territory. Counties and states/territories in bold have a population of at least 1 million.
Table
State federal district or territory |
Largest county parish or municipality[note 1] |
Population (2013 estimate) |
County parish seat or shire town |
State federal district or territory population (2013 estimate)[3][note 2] |
Largest county/parish or municipality Percentage of state/federal district or territory population |
---|---|---|---|---|---|
Alabama | Jefferson | 659,479 | Birmingham | 4,833,722 | 13.64% |
Alaska | Anchorage | 300,950 | Anchorage | 735,132 | 40.94% |
American Samoa | Western District[1][note 3] | 31,329[4] | — | 55,519 | 56.42% |
Arizona | Maricopa | 4,009,412 | Phoenix | 6,626,624 | 60.50% |
Arkansas | Pulaski | 391,284 | Little Rock | 2,959,373 | 13.22% |
California | Los Angeles | 10,017,068 | Los Angeles | 38,332,521 | 26.13% |
Colorado | El Paso | 655,044 | Colorado Springs | 5,268,367 | 12.43% |
Connecticut | Fairfield | 939,904 | Bridgeport | 3,596,080 | 26.14% |
Delaware | New Castle | 549,684 | Wilmington | 925,749 | 59.38% |
District of Columbia | District of Columbia | 693,972 | District of Columbia | 693,972 | 100% |
Florida | Miami-Dade | 2,617,176 | Miami | 19,552,860 | 13.39% |
Georgia | Fulton | 1,010,562 | Atlanta | 10,214,860 | 09.85% |
Guam | Guam[note 4] | 162,742 | Hagåtña | 162,742 | 100% |
Hawaii | Honolulu | 983,429 | Honolulu | 1,404,054 | 70.04% |
Idaho | Ada | 416,464 | Boise | 1,612,136 | 25.83% |
Illinois | Cook | 5,240,700 | Chicago | 12,882,135 | 40.68% |
Indiana | Marion | 928,281 | Indianapolis | 6,570,902 | 14.13% |
Iowa | Polk | 451,677 | Des Moines | 3,090,416 | 14.62% |
Kansas | Johnson | 566,933 | Olathe | 2,893,957 | 19.59% |
Kentucky | Jefferson | 756,832 | Louisville | 4,395,295 | 17.22% |
Louisiana | East Baton Rouge | 445,227 | Baton Rouge | 4,625,470 | 09.63% |
Maine | Cumberland | 285,456 | Portland | 1,328,302 | 21.49% |
Maryland | Montgomery | 1,016,677 | Rockville | 5,928,814 | 17.15% |
Massachusetts | Middlesex | 1,552,802 | Cambridge and Lowell | 6,692,824 | 23.20% |
Michigan | Wayne | 1,775,273 | Detroit | 9,895,622 | 17.94% |
Minnesota | Hennepin | 1,198,778 | Minneapolis | 5,420,380 | 22.12% |
Mississippi | Hinds | 244,899 | Jackson | 2,991,207 | 08.19% |
Missouri | St. Louis | 1,001,444 | Clayton | 6,044,171 | 16.57% |
Montana | Yellowstone | 154,162 | Billings | 1,015,165 | 15.19% |
Nebraska | Douglas | 531,265 | Omaha | 1,868,516 | 28.43% |
Nevada | Clark | 2,027,868 | Las Vegas | 2,790,136 | 72.68% |
New Hampshire | Hillsborough | 402,922 | Manchester and Nashua | 1,323,459 | 30.44% |
New Jersey | Bergen | 925,328 | Hackensack | 8,899,339 | 10.40% |
New Mexico | Bernalillo | 673,460 | Albuquerque | 2,085,287 | 32.30% |
New York | Kings | 2,592,149 | Brooklyn | 19,651,127 | 13.19% |
North Carolina | Mecklenburg | 990,977 | Charlotte | 9,848,060 | 10.06% |
North Dakota | Cass | 162,829 | Fargo | 723,393 | 22.51% |
Northern Mariana Islands | Saipan[1] | 48,220 | Capitol Hill, Saipan | 52,263 | 92.26% |
Ohio | Cuyahoga[5] | 1,268,154 | Cleveland | 11,570,808 | 10.96% |
Oklahoma | Oklahoma | 755,245 | Oklahoma City | 3,850,568 | 19.61% |
Oregon | Multnomah | 759,256 | Portland | 3,930,065 | 19.32% |
Pennsylvania | Philadelphia | 1,553,165 | Philadelphia | 12,773,801 | 12.16% |
Puerto Rico | San Juan[1] | 395,326 | San Juan | 3,337,177 | 11.84% |
Rhode Island | Providence | 628,323 | Providence | 1,051,511 | 59.75% |
South Carolina | Greenville | 474,266 | Greenville | 4,774,839 | 09.93% |
South Dakota | Minnehaha | 179,640 | Sioux Falls | 844,877 | 21.26% |
Tennessee | Shelby | 940,764 | Memphis | 6,495,978 | 14.48% |
Texas | Harris | 4,336,853 | Houston | 26,448,193 | 16.40% |
U.S. Minor Outlying Islands | Wake Island | (100)[note 5] | (none) | (160) | 62.5% |
Utah | Salt Lake | 1,063,842 | Salt Lake City | 2,900,872 | 36.67% |
Vermont | Chittenden | 158,504 | Burlington | 626,630 | 25.29% |
Virgin Islands (U.S.) | Saint Thomas island[1] | 51,634 | —[note 6] | 104,901 | 49.22% |
Virginia | Fairfax | 1,116,897 | Fairfax | 8,260,405 | 13.52% |
Washington | King | 2,044,449 | Seattle | 6,971,406 | 29.33% |
West Virginia | Kanawha | 191,275 | Charleston | 1,854,304 | 10.32% |
Wisconsin | Milwaukee | 956,023 | Milwaukee | 5,742,713 | 16.65% |
Wyoming | Laramie | 95,809 | Cheyenne | 582,658 | 16.44% |
Notes
- In the U.S. territories, the U.S. Census Bureau defines the following as county-equivalents: the districts and atolls of American Samoa, Guam as one entity, the municipalities of the Northern Mariana Islands, the municipalities of Puerto Rico, the islands of the U.S. Virgin Islands, and the islands of the U.S. Minor Outlying Islands.[1][2] The District of Columbia is counted as one county-equivalent by the U.S. Census Bureau.[1]
- Territory estimates are from 2017 (except American Samoa — its estimate is from 2010).
- American Samoa has 14 counties, but these counties are not counted by the U.S. Census Bureau (they are treated as minor civil divisions).[2]
- All of Guam is counted as one county-equivalent by the U.S. Census Bureau.[1]
- Wake Island's population is non-permanent. Wake Island, Midway Atoll and Palmyra Atoll all have small non-permanent human populations; of these, Wake Island is the most populous. The U.S. Census Bureau counts the islands in the U.S. Minor Outlying Islands as a county-equivalents.
- "Saint Thomas island" is a U.S. Census Bureau entity (county-equivalent) with no administrative significance.[1] Charlotte Amalie is the largest city on Saint Thomas and is the capital of the U.S. Virgin Islands.
References
- https://www.census.gov/geo/reference/codes/cou.html 2010 FIPS Codes for Counties and County Equivalent Entities. Census.gov. Retrieved September 23, 2018.
- https://www2.census.gov/geo/pdfs/reference/GARM/Ch4GARM.pdf
States, Counties, and Statistically Equivalent Entities (Chapter 4). Census.gov. Retrieved September 23, 2018. - https://www.census.gov/popest/data/historical/2010s/vintage_2013/state.html
- https://media1.britannica.com/eb-media/30/77730-004-369421B0.pdf American Samoa (World Data). Britannica.com. Retrieved September 23, 2018.
- Unofficially, according to more recent information, Franklin County is now the most populous county in Ohio. http://www.cleveland.com/datacentral/index.ssf/2016/04/franklin_county_overtakes_cuya.html
External links
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