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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.

ABOD20170728

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#
Alabama5064513117167067
Alaska570641147795303030
Arizona11359429420715015
Arkansas5203513477175075
California15577940346658058
Colorado10364226843164064
Connecticut484212542808
Delaware19495047303
District of Columbia61158011
Florida5362513888767067
Georgia575131489591590159
Hawaii642316635505
Idaho8264321404544044
Illinois555191437931020102
Indiana358269278992092
Iowa5585714466999099
Kansas817592117541050105
Kentucky394861022691200120
Louisiana4320411189806464
Maine308437988316016
Maryland97072514223124
Massachusetts78002020214014
Michigan5653914643583083
Minnesota7962720623287087
Mississippi4692312153182082
Missouri687421780401141115
Montana14554637696256056
Nebraska7682419897493093
Nevada10978128433216117
New Hampshire89532318710010
New Jersey73541904721021
New Mexico12129831416133033
New York4712612205762062
North Carolina486181259201000100
North Dakota6900117871153053
Ohio4086110582988088
Oklahoma6859517766077077
Oregon9598824860836036
Pennsylvania4474311588367067
Rhode Island10342678505
South Carolina300617785746046
South Dakota7581119635066066
Tennessee4123510679895095
Texas2612326765872540254
Utah8217021281829029
Vermont92172387114014
Virginia394901022799538133
Washington6645617211939039
West Virginia240386225955055
Wisconsin5415814026872072
Wyoming9709325147023023
Total3531905914759230071363142
*: 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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