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

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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 (U.S. state) 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 (state) 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%
United States 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%
United States Virgin Islands 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 (state) 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

  1. ^ 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]
  2. ^ Territory estimates are from 2017 (except American Samoa — its estimate is from 2010).
  3. ^ 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]
  4. ^ All of Guam is counted as one county-equivalent by the U.S. Census Bureau. [1]
  5. ^ 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.
  6. ^ "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

  1. ^ a b c d e f g h https://www.census.gov/geo/reference/codes/cou.html 2010 FIPS Codes for Counties and County Equivalent Entities. Census.gov. Retrieved September 23, 2018.
  2. ^ a b https://www2.census.gov/geo/pdfs/reference/GARM/Ch4GARM.pdf
    States, Counties, and Statistically Equivalent Entities (Chapter 4). Census.gov. Retrieved September 23, 2018.
  3. ^ https://www.census.gov/popest/data/historical/2010s/vintage_2013/state.html
  4. ^ https://media1.britannica.com/eb-media/30/77730-004-369421B0.pdf American Samoa (World Data). Britannica.com. Retrieved September 23, 2018.
  5. ^ 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