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US County Map

There are at present 3,142 counties and county-equivalents in the USA. This US County Map shows all the counties in each state.

Click on any State on the Map for Enlarged County Map of that State
US County Map
USA County Map

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US County Map 2012-13
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Counties are the administrative subdivision in the United States of America. The expression 'county' is applied in 48 out of the 50 States. Our USA County Map shows the location of each county in the US.


About our US County Map

The administration of the United States of America is divided into three levels; States, Counties, and Towns. Currently there are 3,142 counties in the US. San Bernardino County, California, is the largest county with an area of 20,057 square miles (51,950 sq. km), while Kalawao County, Hawaii, is the smallest with an area of 12 square miles (31 sq. km). States are divided into counties for administrative purposes.

Forty-eight out of the fifty states in the US use the term county. Alaska uses the term boroughs, and in the state of Louisiana they are called Parishes (In Louisiana, they take this seriously). Presently, the United States has 3,007 counties and 137 county equivalents for a total of 3,142 counties, and county equivalents.

Average Number of Counties in each state

The average number of counties in each state is 62. Yet, Delaware has only three counties, while Texas comprises of 254 counties. The term “county seat” is used for the administrative center, or the seat of the government.

County Population and Sizes (smallest and largest)

As per the 2015 statistics, Los Angeles County, California, is the most populous county, with a population of 10.17 million people. The least populous counties are the Kalawao County of Hawaii with only 89 people, and the Loving County in Texas, that is home to 82 people.

In terms of size, the smallest county is the Kalawao County in Hawaii. It covers an area of 13 square miles. The biggest county is the San Bernardino County in California. It covers an area of 20,105 square miles.

Some cities are counties

In some parts of the country, a city is also a county, and these areas exercise the powers and responsibilities of both categories of administration. For example, San Francisco, California is both the city of San Francisco, and the San Francisco County. Indianapolis, Indiana has this distinction as well.

Facts

  • Most counties are governed by a county commission, that is made up of a board of administrators, county council, and often landowners. Larger counties often employ a county executive and staff.

  • The tiniest county is the Independent City of Falls Church, Virginia. A tiny county equivalent with an area of 2 sq. mi (5.2 sq. km) only.

  • By recent statistics, Loudoun County, a Virginia suburb of Washington, D.C., ranks as the highest-income county in the US.

  • Sumter County, west of Orlando, Florida, houses the largest population of senior citizens. More than half (52.9%) the residents are 65 or older.

  • Washington, D.C., holds the prestigious place of being the most educated county, as it houses the largest of the nation’s employers, the federal government.

  • There are 40 city-counties in the US, including Denver, Colorado; Indianapolis, Indiana; Jacksonville, Florida; Louisville, Kentucky; Nashville, Tennessee; New Orleans, Louisiana (Remember it’s a Parish); Philadelphia, Pennsylvania; and San Francisco, California.

  • The city-boroughs of Alaska are cities that rank among the geographically largest cities in the world, yet their population densities are far below those of most urban places.

  • The other terms for the county seat are county courthouse, the parish seat (Louisiana), and the ‘borough seat’ (Alaska).

  • Many counties are also divided further, into smaller political or governmental units. For example, some northeastern and midwestern states divided some counties into ‘townships.’ These units proffer governmental or public services to the people.

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List showing states with number of Counties and Equivalents

State or DistrictLand Area (Sq Mi)Land Area (Sq Km)Number of CountiesNumber of Equivalents*Total Number#
Alabama50,645131,17167067
Alaska570,6411,477,95303030
Arizona113,594294,20715015
Arkansas52,035134,77175075
California155,779403,46658058
Colorado103,642268,43164064
Connecticut4,84212,542808
Delaware1,9495,047303
District of Columbia61158011
Florida53,625138,88767067
Georgia57,513148,9591590159
Hawaii6,42316,635505
Idaho82,643214,04544044
Illinois55,519143,7931020102
Indiana35,82692,78992092
Iowa55,857144,66999099
Kansas81,759211,7541050105
Kentucky39,486102,2691200120
Louisiana43,204111,89806464
Maine30,84379,88316016
Maryland9,70725,14223124
Massachusetts7,80020,20214014
Michigan56,539146,43583083
Minnesota79,627206,23287087
Mississippi46,923121,53182082
Missouri68,742178,0401141115
Montana145,546376,96256056
Nebraska76,824198,97493093
Nevada109,781284,33216117
New Hampshire8,95323,18710010
New Jersey7,35419,04721021
New Mexico121,298314,16133033
New York47,126122,05762062
North Carolina48,618125,9201000100
North Dakota69,001178,71153053
Ohio40,861105,82988088
Oklahoma68,595177,66077077
Oregon95,988248,60836036
Pennsylvania44,743115,88367067
Rhode Island1,0342,678505
South Carolina30,06177,85746046
South Dakota75,811196,35066066
Tennessee41,235106,79895095
Texas261,232676,5872540254
Utah82,170212,81829029
Vermont9,21723,87114014
Virginia39,490102,2799538133
Washington66,456172,11939039
West Virginia24,03862,25955055
Wisconsin54,158140,26872072
Wyoming97,093251,47023023
Total3,531,9059,147,5923,0071363,142
*: County-Equivalent: A city or an area in a state with no county-level government
#: Total number of Counties and Equivalents in a state

Last Updated on: December 5th, 2017

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