County statistics of the United States

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 3,143 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.

Count

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

• Total: 3,143 (3,007 counties and 136 county equivalents)
• Average county equivalents per state (not including D.C.): 62.84

Population

Nationwide population extremes

Main article: List of United States counties and county equivalents

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

Largest population counties nationwide (2010 Census) 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) 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

See also: List of the most populous counties by U.S. state

Most and least populous counties per state (2010 Census)

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	984,293
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

Nationwide land area extremes

See also: List of the largest counties in the United States by area

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).

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

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

Rank	County	Land area (sq mi)	Land area (km2)
1	Kalawao County, Hawaii	11.99	31.05
2	New York County, New York	22.83	59.13
3	Bristol County, Rhode Island	24.16	62.57
4	Arlington County, Virginia	25.97	67.26
5	City and County of Broomfield, 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

See also: List of U.S. states by area

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.

Smallest, largest and average land areas for counties by state

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)

Population density

Most densely populated

Data presented below is based on U.S. Census department data from 2010. 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 (The Bronx)	32,903	12,704
4	Queens County, New York (Queens)	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

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

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	Kusilvak 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

Data presented below is based on U.S. Census Bureau data from 2010. 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
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	Harding County	0.32/sq mi (0.12/km2)	Bernalillo County	570.76/sq mi (220.37/km2)
New York	Hamilton County	2.81/sq mi (1.08/km2)	New York County (Manhattan)	69,468.42/sq mi (26,821.91/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	Loving County	0.12/sq mi (0.046/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

• Local government in the United States

Notes

^ 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.

References

General

• 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 [1].
• 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. [2]. Page 8 shows a chart of counties by population and by state.

External links

• Labor Statistics County Employment and Wages