County statistics of the United States

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In 48 of the 50 states of the United States, the county is used for the level of local government immediately 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 3,142 counties and county equivalent administrative units in total, including the District of Columbia.

There are 41 independent cities in the United States. In Virginia, any municipality that is incorporated as a city legally becomes independent of any county. Where indicated, the statistics below do not include Virginia's 38 independent cities.

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.

Count[edit]

Texas has the most counties of any state
Delaware has the fewest counties of any state

Lists of counties and county equivalents by number per political division:

Count List Notes
254 Texas
159 Georgia
133 Virginia including 38 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 considered both a state-equivalent and a county equivalent for statistical purposes[1]
  • Total: 3,142 (3,007 counties and 136 county equivalents)
  • Average county equivalents per state (not including D.C.): 62.84

Population[edit]

Nationwide population extremes[edit]

These rankings include county equivalents, however no county equivalents are in the top or bottom ten by population.

Largest population counties nationwide (2010 Census)[2]
Rank County Population
1 Los Angeles County, California 9,818,605
2 Cook County, Illinois 5,194,675
3 Harris County, Texas 4,092,459
4 Maricopa County, Arizona 3,817,117
5 San Diego County, California 3,095,313
6 Orange County, California 3,010,232
7 Kings County, New York 2,504,700
8 Miami-Dade County, Florida 2,496,435
9 Dallas County, Texas 2,368,139
10 Queens County, New York 2,230,722
Smallest population counties nationwide (2010 Census)[2]
Rank County Population
1 Loving County, Texas 82
2 Kalawao County, Hawaii 90
3 King County, Texas 286
4 Kenedy County, Texas 416
5 Arthur County, Nebraska 460
6 Blaine County, Nebraska 478
7 Petroleum County, Montana 494
8 McPherson County, Nebraska 539
9 Grant County, Nebraska 614
10 Loup County, Nebraska 632


Population per state[edit]

Most and least populous counties per state (2010 Census)[2]
State Least Populous Population Most Populous Population
Alabama Greene County 9,045 Jefferson County 658,466
Alaska Yakutat City and Borough 662 Municipality of Anchorage 291,826
Arizona Greenlee County 8,437 Maricopa County 3,817,117
Arkansas Calhoun County 5,368 Pulaski County 382,748
California Alpine County 1,175 Los Angeles County 9,818,605
Colorado San Juan County 699 El Paso County 622,263
Connecticut Windham County 118,428 Fairfield County 916,829
Delaware Kent County 162,310 New Castle County 538,479
Florida Liberty County 8,365 Miami-Dade County 2,496,435
Georgia Taliaferro County 1,717 Fulton County 920,581
Hawaii Kalawao County 90 City and County of Honolulu 953,207
Idaho Clark County 982 Ada County 392,365
Illinois Hardin County 4,320 Cook County 5,194,675
Indiana Ohio County 6,128 Marion County 903,393
Iowa Adams County 4,029 Polk County 430,640
Kansas Greeley County 1,247 Johnson County 544,179
Kentucky Robertson County 2,282 Jefferson County 741,096
Louisiana Tensas Parish 5,252 East Baton Rouge Parish 440,171
Maine Piscataquis County 17,535 Cumberland County 281,674
Maryland Kent County 20,197 Montgomery County 971,777
Massachusetts Town and County of Nantucket 10,172 Middlesex County 1,503,085
Michigan Keweenaw County 2,156 Wayne County 1,820,584
Minnesota Traverse County 3,558 Hennepin County 1,152,425
Mississippi Issaquena County 1,406 Hinds County 245,285
Missouri Worth County 2,171 St. Louis County 998,954
Montana Petroleum County 494 Yellowstone County 147,972
Nebraska Arthur County 460 Douglas County 517,110
Nevada Esmeralda County 783 Clark County 1,951,269
New Hampshire Coos County 33,055 Hillsborough County 400,721
New Jersey Salem County 66,083 Bergen County 905,116
New Mexico Harding County 695 Bernalillo County 662,564
New York Hamilton County 4,836 Kings County 2,504,700
North Carolina Tyrrell County 4,407 Mecklenburg County 919,628
North Dakota Slope County 727 Cass County 149,778
Ohio Vinton County 13,435 Cuyahoga County 1,280,122
Oklahoma Cimarron County 2,475 Oklahoma County 718,633
Oregon Wheeler County 1,441 Multnomah County 735,334
Pennsylvania Cameron County 5,085 Philadelphia County 1,526,006
Rhode Island Bristol County 49,875 Providence County 626,667
South Carolina McCormick County 10,233 Greenville County 451,225
South Dakota Jones County 1,006 Minnehaha County 169,468
Tennessee Pickett County 5,077 Shelby County 927,644
Texas Loving County 82 Harris County 4,092,459
Utah Daggett County 1,059 Salt Lake County 1,029,655
Vermont Essex County 6,306 Chittenden County 156,545
Virginia Highland County 2,321 Fairfax County 1,081,726
Washington Garfield County 2,266 King County 1,931,249
West Virginia Wirt County 5,717 Kanawha County 193,063
Wisconsin Menominee County 4,232 Milwaukee County 947,735
Wyoming Niobrara County 2,484 Laramie County 91,738

Area[edit]

Nationwide land area extremes[edit]

The following tables exclude county equivalents. The largest counties and county equivalents are organized boroughs and the census areas of Alaska with the top two being Yukon-Koyukuk Census Area (145,504.79 sq mi or 376,855.7 km2) and North Slope Borough (88,695.41 sq mi or 229,720.1 km2). The smallest counties and county equivalents are the independent cities of Virginia with the extreme being Falls Church (2.00 sq mi or 5.2 km2).[2]

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).

Largest counties by land area nationwide[2]
Rank County Land area
(sq mi)
Land area
(km2)
1 San Bernardino County, California 20,056.94 51,947.24
2 Coconino County, Arizona 18,618.89 48,222.70
3 Nye County, Nevada 18,181.92 47,090.96
4 Elko County, Nevada 17,169.83 44,469.66
5 Mohave County, Arizona 13,311.08 34,475.54
6 Apache County, Arizona 11,197.52 29,001.44
7 Lincoln County, Nevada 10,633.20 27,539.86
8 Sweetwater County, Wyoming 10,426.65 27,004.90
9 Inyo County, California 10,180.88 26,368.36
10 Harney County, Oregon 10,133.17 26,244.79
Smallest counties by land area nationwide[2]
Rank County Land area
(sq mi)
Land area
(km2)
1 Kalawao County, Hawaii 11.99 31.05
2 New York County (Manhattan), New York 22.83 59.13
3 Bristol County, Rhode Island 24.16 62.57
4 Arlington County, Virginia 25.97 67.26
5 Broomfield County, Colorado 33.03 85.55
6 Bronx County, New York 42.10 109.04
7 Town and County of Nantucket, Massachusetts 44.97 116.47
8 Hudson County, New Jersey 46.19 119.63
9 City and County of San Francisco, California 46.87 121.39
10 Suffolk County, Massachusetts 58.15 150.61


Smallest, largest and average area per state[edit]

This list excludes Alaskan Census Areas, but includes other county equivalents. The North Slope Borough is the largest independently incorporated county equivalent. The Unorganized Borough is substantially larger, but is an extension of the State of Alaska government and not independently incorporated.A[›]

Smallest, largest and average land areas for counties by state[3]
State Avg. county land area, sq. mi. (km2) Smallest county Area, sq. mi. (km2) Largest county area, sq. mi. (km2)
All States 997.6 (2,584) City of Falls Church, Virginia 2.0 (5.2) North Slope Borough, Alaska 88,695.4 (229,720)
Alaska 8,545.7 (22,133) Skagway Municipality 452.3 (1,171) North Slope Borough 88,695.4 (229,720)
Arizona 7,572.9 (19,614) Santa Cruz County 1,236.9 (3,204) Coconino County 18,618.8 (48,222)
Nevada 6,457.7 (16,725) Carson City 144.6 (375) Nye County 18,181.9 (47,091)
Wyoming 4,221.4 (10,933) Hot Springs County 2,004.0 (5,190) Sweetwater County 10,426.6 (27,005)
New Mexico 3,675.7 (9,520) Los Alamos County 109.1 (283) Catron County 6,923.6 (17,932)
Utah 2,833.4 (7,338) Davis County 298.7 (774) San Juan County 7,819.9 (20,253)
California 2,685.8 (6,956) San Francisco County 46.8 (121) San Bernardino County 20,056.9 (51,947)
Oregon 2,666.3 (6,906) Multnomah County 431.3 (1,117) Harney County 10,133.1 (26,245)
Montana 2,599.0 (6,731) Silver Bow County 718.4 (1,861) Beaverhead County 5,541.6 (14,353)
Maine 1,927.7 (4,993) Sagadahoc County 253.6 (657) Aroostook County 6,671.3 (17,279)
Idaho 1,878.3 (4,865) Payette County 406.8 (1,054) Idaho County 8,477.3 (21,956)
Washington 1,704.0 (4,413) San Juan County 173.9 (450) Okanogan County 5,267.9 (13,644)
Colorado 1,619.4 (4,194) Broomfield County 33.0 (85) Las Animas County 4,772.6 (12,361)
North Dakota 1,301.9 (3,372) Eddy County 630.1 (1,632) McKenzie County 2,760.3 (7,149)
Hawaii 1,284.5 (3,327) Kalawao County 11.9 (31) Hawaii County 4,028.4 (10,434)
South Dakota 1,148.7 (2,975) Clay County 412.1 (1,067) Meade County 3,470.9 (8,990)
Texas 1,028.5 (2,664) Rockwall County 127.0 (329) Brewster County 6,183.7 (16,016)
Minnesota 915.2 (2,370) Ramsey County 152.2 (394) St. Louis County 6,247.4 (16,181)
New Hampshire 895.3 (2,319) Strafford County 368.9 (955) Coos County 1,794.6 (4,648)
Oklahoma 890.8 (2,307) Marshall County 371.0 (961) Osage County 2,246.3 (5,818)
Nebraska 826.1 (2,140) Sarpy County 238.9 (619) Cherry County 5,960.4 (15,437)
Florida 800.4 (2,073) Union County 243.5 (631) Collier County 1,998.3 (5,176)
Kansas 778.7 (2,017) Wyandotte County 151.6 (393) Butler County 1,429.8 (3,703)
Alabama 767.4 (1,988) Etowah County 534.9 (1,385) Baldwin County 1,589.7 (4,117)
New York 760.1 (1,969) New York County 22.8 (59) St. Lawrence County 2,680.3 (6,942)
Wisconsin 752.2 (1,948) Pepin County 231.9 (601) Marathon County 1,544.9 (4,001)
Arkansas 693.8 (1,797) Lafayette County 528.2 (1,368) Union County 1,039.2 (2,692)
Michigan 681.2 (1,764) Benzie County 319.7 (828) Marquette County 1,808.4 (4,684)
Louisiana 675.1 (1,749) Orleans Parish 169.4 (439) Vernon Parish 1,327.9 (3,439)
Pennsylvania 667.8 (1,730) Montour County 130.2 (337) Lycoming County 1,228.5 (3,182)
Vermont 658.3 (1,705) Grand Isle County 81.8 (212) Windsor County 969.3 (2,510)
South Carolina 653.5 (1,693) McCormick County 359.1 (930) Horry County 1,133.9 (2,937)
Delaware 649.5 (1,682) New Castle County 426.2 (1,104) Sussex County 936.0 (2,424)
Connecticut 605.3 (1,568) Middlesex County 369.3 (956) Litchfield County 920.5 (2,384)
Missouri 597.8 (1,548) City of St. Louis 61.9 (160) Texas County 1,177.2 (3,049)
Mississippi 572.2 (1,482) Alcorn County 400.0 (1,036) Yazoo County 922.9 (2,390)
Iowa 564.2 (1,461) Dickinson County 380.6 (986) Kossuth County 972.7 (2,519)
Massachusetts 557.1 (1,443) Nantucket County 44.9 (116) Worcester County 1,510.7 (3,913)
Illinois 544.3 (1,410) Putnam County 160.1 (415) McLean County 1,183.3 (3,065)
North Carolina 486.2 (1,259) Chowan County 172.4 (447) Robeson County 949.2 (2,458)
Ohio 464.3 (1,203) Lake County 227.4 (589) Ashtabula County 701.9 (1,818)
West Virginia 437.1 (1,132) Hancock County 82.6 (214) Randolph County 1,039.6 (2,693)
Tennessee 434.1 (1,124) Trousdale County 114.1 (296) Shelby County 763.1 (1,976)
Maryland 404.5 (1,048) City of Baltimore 80.9 (210) Frederick County 660.2 (1,710)
Indiana 389.4 (1,009) Ohio County 86.1 (223) Allen County 657.3 (1,702)
Georgia 361.7 (937) Clarke County 119.2 (309) Ware County 892.4 (2,311)
New Jersey 350.2 (907) Hudson County 46.1 (119) Burlington County 798.5 (2,068)
Kentucky 329.1 (852) Robertson County 99.9 (259) Pike County 786.8 (2,038)
Virginia 294.7 (763) City of Falls Church 2.0 (5.2) Pittsylvania County 968.9 (2,509)
Rhode Island 206.8 (536) Bristol County 24.1 (62) Providence County 409.5 (1,061)
District of Columbia 61.0 (158) District of Columbia 61.0 (158) District of Columbia 61.0 (158)

Population density[edit]

Most densely populated[edit]

Data presented below is based on U.S. Census department data from 2010.[3] Calculations are made by dividing the population by the land area. All county equivalents are included.

Rank County name Pop/mile2 Pop/km2
1 New York County, New York (Manhattan) 69,468 26,822
2 Kings County, New York (Brooklyn) 35,369 13,656
3 Bronx County, New York 32,903 12,704
4 Queens County, New York 20,554 7,936
5 City and County of San Francisco, California 17,179 6,633
6 Hudson County, New Jersey 13,732 5,302
7 Suffolk County, Massachusetts 12,417 4,794
8 City of Philadelphia, Pennsylvania 11,379 4,394
9 Washington, D.C. 9,857 3,806
10 Alexandria, Virginia 9,314 3,596
11 Richmond County, New York (Staten Island) 8,030 3,101
12 Arlington County, Virginia 7,994 3,086
13 City of Baltimore, Maryland 7,672 2,962
14 Essex County, New Jersey 6,212 2,398
15 City of Falls Church, Virginia 6,170 2,382
16 City of Manassas Park, Virginia 5,633 2,175
17 Cook County, Illinois 5,495 2,122
18 Union County, New Jersey 5,216 2,014
19 City of Saint Louis, Missouri 5,157 1,991
20 Nassau County, New York 4,705 1,817
21 City of Norfolk, Virginia 4,486 1,732
22 City of Charlottesville, Virginia 4,242 1,638
23 Milwaukee County, Wisconsin 3,926 1,516
24 Denver County, Colorado 3,923 1,515
25 Bergen County, New Jersey 3,884 1,500
26 City of Manassas, Virginia 3,828 1,478
27 Orange County, California 3,808 1,470
28 City of Fairfax, Virginia 3,617 1,396
29 City of Richmond, Virginia 3,415 1,318
30 Pinellas County, Florida 3,348 1,292
31 Ramsey County, Minnesota 3,342 1,290
32 Delaware County, Pennsylvania 3,039 1,173
33 Wayne County, Michigan 2,974 1,148
34 City of Portsmouth, Virginia 2,839 1,096
35 City of Winchester, Virginia 2,838 1,096
36 City of Lexington, Virginia 2,820 1,089
37 City of Harrisonburg, Virginia 2,808 1,084
38 Cuyahoga County, Ohio 2,800 1,081
39 DuPage County, Illinois 2,800 1,081
40 Fairfax County, Virginia 2,767 1,068
41 Dallas County, Texas 2,718 1,049
42 Passaic County, New Jersey 2,715 1,048
43 City of Hampton, Virginia 2,674 1,032
44 City of Newport News, Virginia 2,634 1,017
45 Middlesex County, New Jersey 2,622 1,012
46 DeKalb County, Georgia 2,586 998
47 Los Angeles County, California 2,420 934
48 Harris County, Texas 2,402 928
49 City of Fredericksburg, Virginia 2,326 898
50 Camden County, New Jersey 2,322 896

Least densely populated[edit]

This list generated 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 is not included here as a unit, but its census areas (non-governmental entities) are. If the census areas were removed from the list, the Unorganized Borough would rank fourteenth with a density of 0.38 per square mile (0.15 /km2).

Counties with lowest population densities[3]
Rank County name Pop/mile2 Pop/km2
1 Yukon-Koyukuk Census Area, Alaska 0.03 0.01
2 Lake and Peninsula Borough, Alaska 0.06 0.02
3 Yakutat City and Borough, Alaska 0.08 0.03
4 North Slope Borough, Alaska 0.10 0.04
5 Loving County, Texas 0.12 0.04
6 Denali Borough, Alaska 0.14 0.05
7 Northwest Arctic Borough, Alaska 0.21 0.08
8 Esmeralda County, Nevada 0.21 0.08
9 Garfield County, Montana 0.25 0.10
10 Dillingham Census Area, Alaska 0.26 0.10
11 Valdez-Cordova Census Area, Alaska 0.28 0.10
12 Southeast Fairbanks Census Area, Alaska 0.28 0.11
13 Kenedy County, Texas 0.28 0.11
14 Hoonah-Angoon Census Area, Alaska 0.28 0.11
15 Petroleum County, Montana 0.29 0.11
16 King County, Texas 0.31 0.12
17 Harding County, New Mexico 0.32 0.12
18 Carter County, Montana 0.34 0.13
19 Nome Census Area, Alaska 0.41 0.16
20 Terrell County, Texas 0.41 0.16
21 Bethel Census Area, Alaska 0.41 0.16
22 Wade Hampton Census Area, Alaska 0.43 0.16
23 Aleutians East Borough, Alaska 0.45 0.17
24 Harding County, South Dakota 0.47 0.18
25 Eureka County, Nevada 0.47 0.18
26 Lincoln County, Nevada 0.50 0.19
27 Powder River County, Montana 0.52 0.20
28 Catron County, New Mexico 0.53 0.20
29 Clark County, Idaho 0.55 0.21
30 Slope County, North Dakota 0.59 0.23
31 McMullen County, Texas 0.62 0.24
32 McPherson County, Nebraska 0.62 0.24
33 Culberson County, Texas 0.62 0.24
34 Sioux County, Nebraska 0.63 0.24
35 Arthur County, Nebraska 0.64 0.24
36 McCone County, Montana 0.65 0.25
37 Blaine County, Nebraska 0.67 0.26
38 Prairie County, Montana 0.67 0.26
39 Billings County, North Dakota 0.68 0.26
40 Borden County, Texas 0.71 0.27
41 Harney County, Oregon 0.73 0.28
42 Treasure County, Montana 0.73 0.28
43 Golden Valley County, Montana 0.75 0.29
44 Hinsdale County, Colorado 0.75 0.29
45 Hudspeth County, Texas 0.76 0.29
46 Meagher County, Montana 0.79 0.30
47 Kiowa County, Colorado 0.79 0.30
48 Grant County, Nebraska 0.79 0.30
49 Mineral County, Colorado 0.81 0.31
50 Phillips County, Montana 0.82 0.31

Population density per state[edit]

Data presented below is based on U.S. Census Bureau data from 2010.[3] Calculations are made by dividing the population by the land area. All county equivalents are included.

Excluding the census areas of Alaska, Lake and Peninsula Borough is the least densely populated county equivalent with 0.069 /sq mi (0.027 /km2).

State Least densely populated county Population density Most densely populated county Population density
New York Hamilton County 2.81 /sq mi (1.08 /km2) New York County (Manhattan) 69,468.42 /sq mi (26,821.91 /km2)
Alabama Wilcox County 13.13 /sq mi (5.07 /km2) Jefferson County 592.53 /sq mi (228.78 /km2)
Alaska Lake and Peninsula Borough 0.06 /sq mi (0.023 /km2) Anchorage Municipality 171.19 /sq mi (66.10 /km2)
Arizona La Paz County 4.55 /sq mi (1.76 /km2) Maricopa County 414.89 /sq mi (160.19 /km2)
Arkansas Calhoun County 8.53 /sq mi (3.29 /km2) Pulaski County 503.77 /sq mi (194.51 /km2)
California Alpine County 1.59 /sq mi (0.61 /km2) City and County of San Francisco 17,179.15 /sq mi (6,632.91 /km2)
Colorado Hinsdale County 0.75 /sq mi (0.29 /km2) Denver County 3,922.59 /sq mi (1,514.52 /km2)
Connecticut Litchfield County 206.31 /sq mi (79.66 /km2) Fairfield County 1,467.18 /sq mi (566.48 /km2)
Delaware Sussex County 210.60 /sq mi (81.31 /km2) New Castle County 1,263.18 /sq mi (487.72 /km2)
District of Columbia 9,857.20 /sq mi (3,805.89 /km2) 9,857.20 /sq mi (3,805.89 /km2)
Florida Liberty County 10.01 /sq mi (3.86 /km2) Pinellas County 3,347.50 /sq mi (1,292.48 /km2)
Georgia Clinch County 8.49 /sq mi (3.28 /km2) DeKalb County 2,585.72 /sq mi (998.35 /km2)
Hawaii Kalawao County 7.50 /sq mi (2.90 /km2) Honolulu County 1,586.71 /sq mi (612.63 /km2)
Idaho Clark County 0.55 /sq mi (0.21 /km2) Ada County 372.76 /sq mi (143.92 /km2)
Illinois Pope County 12.12 /sq mi (4.68 /km2) Cook County 5,495.11 /sq mi (2,121.67 /km2)
Indiana Benton County 21.78 /sq mi (8.41 /km2) Marion County 2,279.57 /sq mi (880.15 /km2)
Iowa Adams County 9.51 /sq mi (3.67 /km2) Polk County 750.51 /sq mi (289.77 /km2)
Kansas Greeley County 1.60 /sq mi (0.62 /km2) Johnson County 1,149.57 /sq mi (443.85 /km2)
Kentucky Hickman County 20.23 /sq mi (7.81 /km2) Jefferson County 1,948.11 /sq mi (752.17 /km2)
Louisiana Cameron Parish 5.32 /sq mi (2.05 /km2) Orleans Parish 2,029.41 /sq mi (783.56 /km2)
Maine Piscataquis County 4.42 /sq mi (1.71 /km2) Cumberland County 337.23 /sq mi (130.21 /km2)
Maryland Garrett County 46.51 /sq mi (17.96 /km2) City of Baltimore 7,671.51 /sq mi (2,961.99 /km2)
Massachusetts Franklin County 102.05 /sq mi (39.40 /km2) Suffolk County 12,416.78 /sq mi (4,794.15 /km2)
Michigan Keweenaw County 3.99 /sq mi (1.54 /km2) Wayne County 2,974.42 /sq mi (1,148.43 /km2)
Minnesota Lake of the Woods County 3.11 /sq mi (1.20 /km2) Ramsey County 3,341.64 /sq mi (1,290.21 /km2)
Mississippi Issaquena County 3.40 /sq mi (1.31 /km2) DeSoto County 338.66 /sq mi (130.76 /km2)
Missouri Worth County 8.14 /sq mi (3.14 /km2) City of St. Louis 5,157.48 /sq mi (1,991.31 /km2)
Montana Powder River County 0.53 /sq mi (0.20 /km2) Yellowstone County 56.19 /sq mi (21.70 /km2)
Nebraska McPherson County 0.63 /sq mi (0.24 /km2) Douglas County 1,574.37 /sq mi (607.87 /km2)
Nevada Lander County 1.05 /sq mi (0.41 /km2) Carson City 382.09 /sq mi (147.53 /km2)
New Hampshire Coos County 18.41 /sq mi (7.11 /km2) Hillsborough County 457.37 /sq mi (176.59 /km2)
New Jersey Salem County 199.10 /sq mi (76.87 /km2) Hudson County 13,731.61 /sq mi (5,301.80 /km2)
New Mexico De Baca County 0.87 /sq mi (0.34 /km2) Bernalillo County 570.76 /sq mi (220.37 /km2)
North Carolina Hyde County 9.48 /sq mi (3.66 /km2) Mecklenburg County 1,755.54 /sq mi (677.82 /km2)
North Dakota Billings County 0.68 /sq mi (0.26 /km2) Cass County 84.86 /sq mi (32.76 /km2)
Ohio Monroe County 32.12 /sq mi (12.40 /km2) Cuyahoga County 2,799.95 /sq mi (1,081.07 /km2)
Oklahoma Cimarron County 1.34 /sq mi (0.52 /km2) Tulsa County 1,058.14 /sq mi (408.55 /km2)
Oregon Harney County 0.73 /sq mi (0.28 /km2) Multnomah County 1,704.93 /sq mi (658.28 /km2)
Pennsylvania Cameron County 12.83 /sq mi (4.95 /km2) Philadelphia County 11,379.49 /sq mi (4,393.65 /km2)
Rhode Island Washington County 385.67 /sq mi (148.91 /km2) Bristol County 2,064.00 /sq mi (796.91 /km2)
South Carolina Allendale County 25.53 /sq mi (9.86 /km2) Greenville County 574.72 /sq mi (221.90 /km2)
South Dakota Jones County 1.03 /sq mi (0.40 /km2) Minnehaha County 209.95 /sq mi (81.06 /km2)
Tennessee Perry County 19.08 /sq mi (7.37 /km2) Davidson County 1,243.33 /sq mi (480.05 /km2)
Texas Hudspeth County 0.76 /sq mi (0.29 /km2) Dallas County 2,718.00 /sq mi (1,049.43 /km2)
Utah Garfield County 0.99 /sq mi (0.38 /km2) Salt Lake County 1,387.14 /sq mi (535.58 /km2)
Vermont Essex County 9.50 /sq mi (3.67 /km2) Chittenden County 291.74 /sq mi (112.64 /km2)
Virginia Highland County 5.59 /sq mi (2.16 /km2) City of Alexandria 9,314.30 /sq mi (3,596.27 /km2)
Washington Garfield County 3.18 /sq mi (1.23 /km2) King County 912.87 /sq mi (352.46 /km2)
West Virginia Pocahontas County 9.27 /sq mi (3.58 /km2) Ohio County 419.98 /sq mi (162.16 /km2)
Wisconsin Iron County 7.80 /sq mi (3.01 /km2) Milwaukee County 3,925.95 /sq mi (1,515.82 /km2)
Wyoming Niobrara County 0.94 /sq mi (0.36 /km2) Laramie County 34.15 /sq mi (13.19 /km2)

See also[edit]

Notes[edit]

^ 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,[4] 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.[5]

References[edit]

  1. ^ "Chapter 4: States, Counties, and Statistically Equivalent Entities". Geographic Areas Reference Manual. U.S. Department of Commerce. November 1994. p. 4-2. 
  2. ^ a b c d e f "DataSet.txt". State & County QuickFacts. U.S. Census Bureau. Retrieved November 16, 2012.  (See "Download the Database" for an explanation of this data set.)
  3. ^ a b c d "2010 Census Summary File 1: GEOGRAPHIC IDENTIFIERS". American Factfinder. US Census. Retrieved 18 October 2013. 
  4. ^ "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. Retrieved 2008-07-17. 
  5. ^ "Local Government in Alaska" (PDF). Local Boundary Commission, Alaska Department of Commerce, Community and Economic Development. February 2001. Retrieved 2008-07-17. 

General[edit]

External links[edit]