County statistics of the United States
The counties are used in 48 of the 50 states of the United States for the level of local government below the state itself. Louisiana uses parishes, and Alaska uses boroughs. In several states in New England, some or all counties within states have no governments of their own; the counties continue to exist as legal entities, however, and are used by states for some administrative functions and by the United States Census bureau for statistical analysis. There are 3,143 counties & county-equivalent administrative units in total (source: count of list below).
There are 42 independent cities in the United States. In Virginia, any municipality that is incorporated as a city legally becomes independent of any county. Except where indicated, the statistics below do not include Virginia's 39 independent cities. The only Virginia statistic affected is smallest county by area; if independent cities are included, Falls Church becomes the smallest county in the state, and in fact the smallest county-level political subdivision in the United States, at 2.0 square miles (5.2 km2). The other three independent cities in other states (Baltimore, Maryland; Carson City, Nevada; and St. Louis, Missouri) are also not included in these lists. The District of Columbia is included.
In Alaska, most of the land area of the state has no county-level government. Those parts of the state are divided by the United States Census Bureau into census areas, which are not the same as boroughs. The state's largest statistical division by area is the Yukon-Koyukuk Census Area, which is larger than any of the state's boroughs. Although Anchorage is called a municipality, it is considered a consolidated city and borough.
Although most U.S. counties were created during the 19th century, the most recent county in the United States is Broomfield County in Colorado, created in 2001.
List of counties & county-equivalents (by number per political division)
- 254 – Texas
- 159 – Georgia
- 134 – Virginia (including 39 independent cities)
- 120 – Kentucky
- 115 – Missouri (including 1 independent city)
- 105 – Kansas
- 102 – Illinois
- 100 – North Carolina
- 99 – Iowa
- 95 – Tennessee
- 93 – Nebraska
- 92 – Indiana
- 88 – Ohio
- 87 – Minnesota
- 83 – Michigan
- 82 – Mississippi
- 77 – Oklahoma
- 75 – Arkansas
- 72 – Wisconsin
- 67 – Alabama
- 67 – Florida
- 67 – Pennsylvania
- 66 – South Dakota
- 64 – Colorado
- 64 – Louisiana (consisting in whole of parishes)
- 62 – New York
- 58 – California
- 56 – Montana
- 55 – West Virginia
- 53 – North Dakota
- 46 – South Carolina
- 44 – Idaho
- 39 – Washington
- 36 – Oregon
- 33 – New Mexico
- 29 – Alaska (consisting of 18 organized boroughs and, in its Unorganized Borough, of 11 designated census areas)
- 29 – Utah
- 24 – Maryland (including 1 independent city)
- 23 – Wyoming
- 21 – New Jersey
- 17 – Nevada (including 1 independent city)
- 16 – Maine
- 15 – Arizona
- 14 – Massachusetts
- 14 – Vermont
- 10 – New Hampshire
- 8 – Connecticut
- 5 – Hawaii
- 5 – Rhode Island
- 3 – Delaware
- 1 – District Of Columbia
Twenty most populous counties in the United States
The population is based on a 2006 estimate. From the 2000 Census to the year 2004, all counties remained the same in ranking, while Dallas County overtook Queens County to rank ninth.
Rank County Population 1 Los Angeles County, California 9,948,081 2 Cook County, Illinois 5,288,655 3 Harris County, Texas 4,092,459 4 Maricopa County, Arizona 3,768,123 5 Orange County, California 3,002,048 6 San Diego County, California 2,941,454 7 Kings County, New York 2,508,820 8 Miami-Dade County, Florida 2,402,208 9 Dallas County, Texas 2,345,815 10 Queens County, New York 2,255,175 11 Riverside County, California 2,026,803 12 San Bernardino County, California 1,999,332 13 Wayne County, Michigan 1,946,419 14 King County, Washington 1,826,732 15 Broward County, Florida 1,787,636 16 Clark County, Nevada 1,777,539 17 Santa Clara County, California 1,731,281 18 Tarrant County, Texas 1,671,295 19 New York County, New York 1,611,581 20 Bexar County, Texas 1,555,592
Twenty-five largest counties (or county equivalents) by land area
Data presented below is based on U.S. Census department data from 2000. Alaska's Unorganized Borough's census areas have been considered county-equivalents; statistics for them are not included.
By size (total square miles, including water area)
The North Slope Borough is the largest independently incorporated county. The Unorganized Borough is substantially larger, but is an extension of the State of Alaska government and not independently incorporated.A[›]
By population (as of 2000)
List of States by Average County Area
Ranking of states based on the average area for all counties or equivalents in each state. Taken by dividing the state's total area by the number of counties in the state. See also List of U.S. states by area.
Rank State name Mean County Area (sq.mi.) Mean County Area (km2.) 1 Alaska 39015.71 101050.24 2 Arizona 7599.87 19683.56 3 Nevada 6503.59 16844.22 4 Wyoming 4252.96 11015.11 5 New Mexico 3684.52 9542.85 6 Utah 2927.55 7582.32 7 California 2822.34 7309.84 8 Oregon 2732.81 7077.93 9 Hawaii 2732.75 7077.79 10 Montana 2625.75 6800.66 11 Maine 2211.56 5727.92 12 Idaho 1899.32 4919.21 13 Washington 1828.21 4735.03 14 Colorado 1626.47 4212.53 15 North Dakota 1333.96 3454.95 16 Michigan 1178.19 3051.51 17 South Dakota 1168.42 3026.20 18 Texas 1057.41 2738.67 19 Minnesota 999.30 2588.17 20 Florida 981.42 2541.86 21 New Hampshire 935.40 2421.64 22 Wisconsin 909.69 2356.10 23 Oklahoma 907.77 2351.10 24 New York 879.94 2279.02 25 Nebraska 831.76 2154.26 26 Delaware 829.67 2148.83 27 Louisiana 810.00 2097.89 28 Kansas 783.59 2029.49 29 Alabama 782.37 2026.34 30 Massachusetts 753.93 1952.67 31 Arkansas 709.05 1836.44 32 South Carolina 696.09 1802.86 33 Connecticut 692.88 1794.54 34 Pennsylvania 687.39 1780.33 35 Vermont 686.71 1778.58 36 Missouri 606.12 1569.85 37 Mississippi 590.61 1529.67 38 Iowa 568.40 1472.16 39 Illinois 567.78 1470.55 40 North Carolina 538.19 1393.91 41 Maryland 516.96 1338.92 42 Ohio 509.38 1319.28 43 Tennessee 443.61 1148.95 44 West Virginia 440.55 1141.01 45 New Jersey 415.29 1075.59 46 Indiana 395.85 1025.24 47 Georgia 373.74 967.99 48 Kentucky 336.74 872.16 49 Virginia 319.21 826.75 50 Rhode Island 242.80 628.85
Fifty most densely populated counties (or county equivalents)
Data presented below is based on U.S. Census department data from 2000. Calculations are made by dividing the population by the land area. All county-equivalents are included. Virginia independent cities (IC) appear on the list.
Fifty least densely populated counties (or county equivalents)
Data presented below is based on U.S. Census department data from 2000. Calculations are made by dividing the population by the land area. All county-equivalents are included. The list is dominated by just a few states: Alaska, Montana, and Texas together comprise about two-thirds of the entries. The Unorganized Borough, which comprises all Census Areas (non-governmental entities) of Alaska, is not included here as a unit, but would rank seventh at 0.0957/km2 (0.2478/mile2) if its component Census Areas were eliminated from the list.
Least and most densely populated counties of each state
Data presented below is based on U.S. Census Bureau data from 2000. Calculations are made by dividing the population by the land area. Density is given both in population per km2 and per square mile. All county-equivalents are included.
County name coincidences: Garfield County is the least densely populated county in both Montana and Utah. Harding County is the least densely populated in both New Mexico and South Dakota. Jefferson County is the most densely populated in both Alabama and Kentucky.
If Census Areas of Alaska are omitted, Lake and Peninsula Borough becomes the least densely populated at 0.0296/km2 | 0.0767/sq mi.
Least densely populated Most densely populated All States Yukon-Koyukuk Census Area, Alaska (0.0173/km2 | 0.0449/sq mi) New York County, New York (25,845.71/km2 | 66,940.07/sq mi) Alabama Wilcox County (5.7276/km2 | 14.8343/sq mi) Jefferson County (229.75/km2 | 595.04/sq mi) Alaska Yukon-Koyukuk Census Area (0.0173/km2 | 0.0449/sq mi) Municipality of Anchorage (59.21/km2 | 153.36) Arizona La Paz County (1.6916/km2 | 4.3812/sq mi) Maricopa County (128.8868/km2 | 333.82/sq mi) Arkansas Calhoun County (3.5299/km2 | 9.1425/sq mi) Pulaski County (181.06/km2 | 468.95/sq mi) California Alpine County (0.6315/km2 | 1.6355/sq mi) City and County of San Francisco (6,422.57/km2 | 16,634.37/sq mi) Colorado Hinsdale County (0.2729/km2 | 0.7068/sq mi) City and County of Denver (1,396.45/km2 | 3,616.78/sq mi) Connecticut Litchfield County (76.4686/km2 | 198.0527/sq mi) Fairfield County (544.52/km2 | 1,410.30/sq mi) Delaware Sussex County (64.5049/km2 | 167.0668/sq mi) New Castle County (453.13/km2 | 1,173.60/sq mi) District of Columbia Washington, D.C. (3,597.09/km2 | 9,316.43/sq mi) Florida Liberty County (3.2431/km2 | 8.3997/sq mi) Pinellas County (1,271.04/km2 | 3,291.99/sq mi) Georgia Clinch County (3.2814/km2 | 8.4988/sq mi) DeKalb County (958.56/km2 | 2,482.67/sq mi) Hawaii Kalawao County (4.2980/km2 | 11.1318/sq mi) Honolulu County (564.03/km2 | 1,460.83/sq mi) Idaho Clark County (0.2236/km2 | 0.5792/sq mi) Ada County (110.12/km2 | 285.22/sq mi) Illinois Pope County (4.5943/km2 | 11.8993/sq mi) Cook County (2,195.51/km2 | 5,685.58/sq mi) Indiana Warren County (8.9086/km2 | 23.0732/sq mi) Marion County (838.42/km2 | 2,171.50/sq mi) Iowa Ringgold County (3.9273/km2 | 10.1717/sq mi) Polk County (254.04/km2 | 657.95/sq mi) Kansas Wallace County (0.7388/km2 | 1.9136/sq mi) Wyandotte County (402.66/km2 | 1,042.88/sq mi) Kentucky Hickman County (8.3114/km2 | 21.5263/sq mi) Jefferson County (695.43/km2 | 1,801.16/sq mi) Louisiana Cameron Parish (2.9380/km2 | 7.6095/sq mi) Orleans Parish (1,036.43/km2 | 2,684.34/sq mi) Maine Piscataquis County (1.6778/km2 | 4.3454/sq mi) Cumberland County (122.74/km2 | 317.90/sq mi) Maryland Garrett County (17.7846/km2 | 46.0618/sq mi) City of Baltimore (independent city) (3,111.36/km2 | 8,058.40/sq mi) Massachusetts Franklin County (39.3429/km2 | 101.8976/sq mi) Suffolk County (4,551.51/km2 | 11,788.35/sq mi) Michigan Keweenaw County (1.6423/km2 | 4.2534/sq mi) Wayne County (1,295.80/km2 | 3,356.11/sq mi) Minnesota Lake of the Woods County (1.3465/km2 | 3.4873/sq mi) Ramsey County (1,266.63/km2 | 3,280.55/sq mi) Mississippi Issaquena County (2.1256/km2 | 5.5052/sq mi) Harrison County (126.00/km2 | 326.35/sq mi) Missouri Reynolds County (3.1837/km2 | 8.2458/sq mi) City of St. Louis (independent city) (2,171.00/km2 | 5,622.87/sq mi) Montana Garfield County (0.1058/km2 | 0.2740/sq mi) Yellowstone County (18.95/km2 | 49.09/sq mi) Nebraska McPherson County (0.2396/km2 | 0.6205/sq mi) Douglas County (540.79/km2 | 1,400.65/sq mi) Nevada Esmeralda County (0.1045/km2 | 0.2706/sq mi) Carson City (independent city) (141.28/km2 | 365.93/sq mi) New Hampshire Coos County (7.1008/km2 | 18.3911/sq mi) Hillsborough County (167.79/km2 | 434.57/sq mi) New Jersey Salem County (73.4597/km2 | 190.2599/sq mi) Hudson County (5,036.17/km2 | 13,043.62/sq mi) New Mexico Harding County (0.1471/km2 | 0.3811/sq mi) Bernalillo County (209.755/km2 |543.138 /sq mi) New York Hamilton County (1.2072/km2 | 3.1266/sq mi) New York County (25,845.71/km2 | 66,940.07/sq mi) North Carolina Hyde County (3.6708/km2 | 9.5073/sq mi) Mecklenburg County (510.22/km2 | 1,321.47/sq mi) North Dakota Slope County (0.2431/km2 | 0.6298/sq mi) Cass County (26.93/km2 | 69.76/sq mi) Ohio Vinton County (11.9407/km2 | 30.9264/sq mi) Cuyahoga County (1,173.89/km2 | 3,040.37/sq mi) Oklahoma Cimarron County (0.6624/km2 | 1.7155/sq mi) Tulsa County (381.36/km2 | 987.72/sq mi) Oregon Harney County (0.2899/km2 | 0.7508/sq mi) Multnomah County (585.93/km2 | 1,517.55/sq mi) Pennsylvania Forest County (4.4606/km2 | 11.5529/sq mi) Philadelphia County (4,337.32/km2 | 11,233.61/sq mi) Rhode Island Washington County (143.3532/km2 | 371.2830/sq mi) Bristol County (792.22/km2 | 2,051.84/sq mi) South Carolina Allendale County (10.6041/km2 | 27.4645/sq mi) Greenville County (185.51/km2 | 480.48/sq mi) South Dakota Harding County (0.1956/km2 | 0.5066/sq mi) Minnehaha County (70.71/km2 | 183.14/sq mi) Tennessee Perry County (7.1014/km2 | 18.3926/sq mi) Shelby County (459.25/km2 | 1,189.44/sq mi) Texas Loving County (0.0384/km2 | 0.0995/sq mi) Dallas County (973.99/km2 | 2,522.63/sq mi) Utah Garfield County (0.3533/km2 | 0.9151/sq mi) Salt Lake County (470.41/km2 | 1,218.35/sq mi) Vermont Essex County (3.7490/km2 | 9.7099/sq mi) Chittenden County (104.99/km2 | 271.91/sq mi) Virginia Highland County (2.3545/km2 | 6.0983/sq mi) City of Alexandria (independent city) (3,263.33/km2 | 8,451.99/sq mi) Washington Ferry County (1.2718/km2 | 3.2940/sq mi) King County (315.46/km2 | 817.03/sq mi) West Virginia Pocahontas County (3.7494/km2 | 9.7109/sq mi) Ohio County (172.46/km2 | 446.68/sq mi) Wisconsin Iron County (3.4983/km2 | 9.0606/sq mi) Milwaukee County (1,502.73/km2 | 3,892.06/sq mi) Wyoming Niobrara County (0.3539/km2 | 0.9167/sq mi) Laramie County (11.73/km2 | 30.38/sq mi)
^ A: The Unorganized Borough, Alaska formed by the Borough Act of 1961 is a legal entity, run by the Alaska state government as an extension of State government, it and the independently incorporated Unified, Home Rule, First Class and Second Class boroughs roughly correspond to parishes in Louisiana and to counties in the other 48 states.
- ^  /  /  / FIPS county code /  /  /  / 
- ^ "Population, Housing Units, Area, and Density for Counties: 2000". Data Set: Census 2000 Summary File 1 (SF 1) 100-Percent Data. U.S. Census Bureau. http://factfinder.census.gov/servlet/GCTTable?_bm=y&-ds_name=DEC_2000_SF1_U&-CONTEXT=gct&-mt_name=DEC_2000_SF1_U_GCTPH1_US9&-redoLog=false&-_caller=geoselect&-geo_id=&-format=US-25. Retrieved 2007-03-14.
- ^ "Alaska Statutes Title 29 Chapter 03. The Unorganized Borough". Local Government On-Line, Division of Community and Regional Affairs, Alaska Department of Commerce, Community and Economic Development. August 18, 1998. http://commerce.alaska.gov/dca/LOGON/pubs/29_03.htm. Retrieved 2008-07-17.
- ^ "Local Government in Alaska" (PDF). Local Boundary Commission, Alaska Department of Commerce, Community and Economic Development. February 2001. http://www.commerce.state.ak.us/dca/lbc/pubs/Local_Gov_AK.pdf. Retrieved 2008-07-17.
- US Census Quick Facts
- For a state map showing the counties, select in http://quickfacts.census.gov/qfd/ the state and select "view map"; select a county to obtain data about it.*
- For a table of counties of a state, with areas, populations, densities and more (using miles), select the state in .
- Map of the US showing population density per county (pdf, see p. 6)
- 2002 Census of Governments; Volume 1, No. 1, Government Organization. U.S. Census Bureau. . Page 8 shows a chart of counties by population and by state.
- Labor Statistics County Employment and Wages
Demographics Economy GeographyArea · Bordering eight or more counties Misc.Alphabetical order · Former counties · Most common names · Less common names · Named after prominent Confederate historical figures · Secession proposals See alsoCounty statistics of the United States Articles on second-level administrative divisions of North American countries
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