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County statistics of the United States
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County statistics of the United States

The term "county" is used in 48 of the 50 states of the United States for the level of local government below the state itself. Louisiana uses the term "parishes" and Alaska uses "boroughs". The only county in the District of Columbia is "District of Columbia County."

Note that in Virginia, any municipality that is incorporated as a city legally becomes independent of any county. The statistics below do not include Virginia 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 km²). Independent cities in other states are also not included in these lists.

Note also that 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 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. Also, the city of Anchorage is legally a municipality, which is also an independent city and therefore in no borough. It has nearly three times the population of the state's most populous borough.

By size (square miles)

 
Smallest
Largest
All States Kalawao County, Hawaii (13) North Slope Borough, Alaska (94,763)
AlabamaEtowah County, Alabama (535)Baldwin County, Alabama (1,596)
AlaskaBristol Bay Borough, Alaska (505)North Slope Borough, Alaska (94,763)
ArizonaSanta Cruz County, Arizona (1,238)Coconino County, Arizona (18,617)
ArkansasLafayette County, Arkansas (527)Union County, Arkansas (1,039)
CaliforniaSan Francisco, California (47)San Bernardino County, California (20,062)
ColoradoBroomfield County, Colorado (27)Las Animas County, Colorado (4,772)
ConnecticutMiddlesex County, Connecticut (369)Litchfield County, Connecticut (920)
DelawareNew Castle County, Delaware (426)Sussex County, Delaware (938)
District of Columbia
District of Columbia County (61)
FloridaUnion County, Florida (240)Collier County, Florida (2,025)
GeorgiaClarke County, Georgia (121)Ware County, Georgia (903)
HawaiiKalawao County, Hawaii (13)Hawaii County, Hawaii (4,028)
IdahoPayette County, Idaho (408)Idaho County, Idaho (8,485)
IllinoisPutnam County, Illinois (160)McLean County, Illinois (1,184)
IndianaOhio County, Indiana (87)Allen County, Indiana (657)
IowaDickinson County, Iowa (381)Kossuth County, Iowa (973)
KansasWyandotte County, Kansas (151)Butler County, Kansas (1,428)
KentuckyGallatin County, Kentucky (99)Pike County, Kentucky (788)
LouisianaOrleans Parish, Louisiana (181)Rapides Parish, Louisiana (1,323)
MaineSagadahoc County, Maine (254)Aroostook County, Maine (6,672)
MarylandCalvert County, Maryland (215)Frederick County, Maryland (663)
MassachusettsNantucket County, Massachusetts (48)Worcester County, Massachusetts (1,513)
MichiganBenzie County, Michigan (321)Marquette County, Michigan (1,821)
MinnesotaRamsey County, Minnesota (156)St. Louis County, Minnesota (6,225)
MississippiAlcorn County, Mississippi (400)Yazoo County, Mississippi (919)
MissouriWorth County, Missouri (267)Texas County, Missouri (1,179)
MontanaSilver Bow County, Montana (718)Beaverhead County, Montana (5,542)
NebraskaSarpy County, Nebraska (241)Cherry County, Nebraska (5,961)
NevadaStorey County, Nevada (264)Nye County, Nevada (18,147)
New HampshireStrafford County, New Hampshire (369)Coos County, New Hampshire (1,801)
New JerseyHudson County, New Jersey (47)Burlington County, New Jersey (805)
New MexicoLos Alamos County, New Mexico (109)Catron County, New Mexico (6,928)
New YorkNew York County, New York (29)St. Lawrence County, New York (2,686)
North CarolinaChowan County, North Carolina (173)Robeson County, North Carolina (949)
North DakotaEddy County, North Dakota (630)McKenzie County, North Dakota (2,742)
OhioLake County, Ohio (229)Ashtabula County, Ohio (703)
OklahomaMarshall County, Oklahoma (371)Osage County, Oklahoma (2,251)
OregonMultnomah County, Oregon (435)Harney County, Oregon (10,134)
PennsylvaniaMontour County, Pennsylvania (131)Lycoming County, Pennsylvania (1235)
Rhode IslandBristol County, Rhode Island (25)Providence County, Rhode Island (413)
South CarolinaMcCormick County, South Carolina (360)Horry County, South Carolina (1,134)
South DakotaClay County, South Dakota (412)Meade County, South Dakota (3,471)
TennesseeTrousdale County, Tennessee (114)Shelby County, Tennessee (755)
TexasRockwall County, Texas (129)Brewster County, Texas (6,193)
UtahDavis County, Utah (305)San Juan County, Utah (7,821)
VermontGrand Isle County, Vermont (83)Windsor County, Vermont (972)
VirginiaArlington County, Virginia (26)Augusta County, Virginia (972)
WashingtonSan Juan County, Washington (175)Okanogan County, Washington (5,268)
West VirginiaHancock County, West Virginia (83)Randolph County, West Virginia (1,040)
WisconsinOzaukee County, Wisconsin (232)Marathon County, Wisconsin (1,545)
WyomingHot Springs County, Wyoming (2,004)Sweetwater County, Wyoming (10,426)

By population (as of 2000)

 
Smallest
Largest
All States Loving County, Texas (67) Los Angeles County, California (9,519,338)
AlabamaGreene County, Alabama (9,974)Jefferson County, Alabama (662,047)
AlaskaYakutat City and Borough, Alaska (808)Fairbanks North Star Borough, Alaska (82,840)
ArizonaGreenlee County, Arizona (8,547)Maricopa County, Arizona (3,072,149)
ArkansasCalhoun County, Arkansas (5,744)Pulaski County, Arkansas (361,474)
CaliforniaAlpine County, California (1,208)Los Angeles County, California (9,519,338)
ColoradoSan Juan County, Colorado (558)Denver County, Colorado (554,636)
ConnecticutWindham County, Connecticut (109,091)Fairfield County, Connecticut (882,567)
DelawareKent County, Delaware (126,697)New Castle, Delaware (500,265)
District of Columbia
District of Columbia County (572,059)
FloridaLiberty County, Florida (7,021)Miami-Dade County, Florida (2,253,362)
GeorgiaTaliaferro County, Georgia (2,077)Fulton County, Georgia (816,006)
HawaiiKalawao County, Hawaii (147)Honolulu County, Hawaii (876,156)
IdahoCamas County, Idaho (991)Ada County, Idaho (300,904)
IllinoisPope County, Illinois (4,413)Cook County, Illinois (5,376,741)
IndianaOhio County, Indiana (5,623)Marion County, Indiana (860,454)
IowaAdams County, Iowa (4,482)Polk County, Iowa (374,601)
KansasGreeley County, Kansas (1,534)Johnson County, Kansas (451,086)
KentuckyRobertson County, Kentucky (2,266)Jefferson County, Kentucky (693,604)
LouisianaTensas Parish, Louisiana (6,618)Orleans Parish, Louisiana (484,674)
MainePiscataquis County, Maine (17,235)Cumberland County, Maine (265,612)
MarylandKent County, Maryland (19,197)Montgomery County, Maryland (873,341)
MassachusettsNantucket County, Massachusetts (9,520)Middlesex County, Massachusetts (1,465,396)
MichiganKeweenaw County, Michigan (2,301)Wayne County, Michigan (2,061,162)
MinnesotaTraverse County, Minnesota (4,134)Hennepin County, Minnesota (1,116,200)
MississippiIssaquena County, Mississippi (2,274)Hinds County, Mississippi (250,800)
MissouriWorth County, Missouri (2,382)St. Louis County, Missouri (1,016,315)
MontanaPetroleum County, Montana (493)Yellowstone County, Montana (129,352)
NebraskaArthur County, Nebraska (444)Douglas County, Nebraska (463,585)
NevadaEsmeralda County, Nevada (971)Clark County, Nevada (1,375,765)
New HampshireCoos County, New Hampshire (33,111)Hillsborough County, New Hampshire (380,841)
New JerseySalem County, New Jersey (65,285)Bergen County, New Jersey (884,118)
New MexicoHarding County, New Mexico (810)Bernalillo County, New Mexico (556,678)
New YorkHamilton County, New York (5,379)Kings County, New York (2,465,326)
North CarolinaTyrrell County, North Carolina (4,149)Mecklenburg County, North Carolina (695,454)
North DakotaSlope County, North Dakota (767)Cass County, North Dakota (123,138)
OhioVinton County, Ohio (12,806)Cuyahoga County, Ohio (1,393,978)
OklahomaCimarron County, Oklahoma (3,148)Oklahoma County, Oklahoma (660,448)
OregonWheeler County, Oregon (1,547)Multnomah County, Oregon (660,486)
PennsylvaniaForest County, Pennsylvania (4,946)Philadelphia County, Pennsylvania (1,517,550)
Rhode IslandBristol County, Rhode Island (50,648)Providence County, Rhode Island (621,602)
South CarolinaMcCormick County, South Carolina (9,958)Greenville County, South Carolina (379,616)
South DakotaJones County, South Dakota (1,193)Minnehaha County, South Dakota (148,281)
TennesseePickett County, Tennessee (4,945)Shelby County, Tennessee (897,472)
TexasLoving County, Texas (67)Harris County, Texas (3,400,578)
UtahDaggett County, Utah (921)Salt Lake County, Utah (898,387)
VermontEssex County, Vermont (6,459)Chittenden County, Vermont (146,571)
VirginiaHighland County, Virginia (2,536)Fairfax County, Virginia (969,749)
WashingtonGarfield County, Washington (2,397)King County, Washington (1,737,034)
West VirginiaWirt County, West Virginia (5,873)Kanawha County, West Virginia (200,073)
WisconsinMenominee County, Wisconsin (4,562)Milwaukee County, Wisconsin (940,164)
WyomingNiobrara County, Wyoming (2,407)Laramie County, Wyoming (81,607)

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