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There are three levels in the administrative divisions of the United States. The first one is states, the second one is county, and the third level is cities, towns, and villages. At present, there are 3,143 counties in USA. San Bernardino County in California is the biggest county in the country.

Click on any State on the Map for its Enlarged View

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A county is an administrative subdivision in the United States of America. The expression 'county' is applied in 48 out of the 50 U.S. states. USA County Map correctly show the location of the counties on the map of U.S.


About US County Map


The administration of the United States of America is distributed into three levels. The first level comprises of the states and the second of the counties. The third level comprises of the villages, towns, and cities within these counties. Presently, there are 3,143 counties in the USA. San Bernardino County, California, is the largest county with an area of 20,057 square miles (51,950 km2). While Kalawao County, Hawaii is the smallest with an area of 12 square miles (31 km2). A county is an administrative unit that helps govern the USA.

Forty-eight out of the fifty states in the US are designated as counties. There are no counties in the Louisiana and Alaska. Alaska comprises of boroughs while the state of Louisiana is made of parishes. Presently, the United States has 3,007 counties and 137 county equivalents, these sum up to a total of 3,144 counties and county equivalents.

Average Number of Counties in each state

The number of counties in each state averages to 62. Yet, Delaware houses only three counties while Texas is huge with 254 counties. The term “county seat” is used for the administrative center or the seat of the government. While in the north-eastern part of the US the term 'shire town’ is used to describe the same.

County Population and Sizes (smallest and largest)

As per the 2015 statistics, the county of Los Angeles County, California holds the greatest population of 10,170,292 people. Considering the mean population of the other states of the US, California holds eight times the average population of other states. 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. The mean population of the rest of the counties in the US is approximately 10, 000.

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

Consolidated City-Counties in the country

A consolidated city-county is a city with a municipal corporation and a county at the same time. Due to the title, these areas exercise the powers and responsibilities of both categories of administration. An example of a consolidated city-county is Indianapolis, Indiana. Some of the Alaskan boroughs have merged with their principal cities, thus unifying the city-boroughs. This allows for better administration.

Interesting Facts

  • These counties are governed by a county commission, its board of administrators, the county council, the landowners of the county or county government. On certain occasions, they are also governed by the county executive.

  • The tiniest county is the Independent City of Falls Church, Virginia. A tiny county equivalent with an area of 2 sq. mi (5.2 km2) only.

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

  • Sumter County, west of Orlando, in Florida, houses the largest population of senior citizens. As more than half (52.9%) of residents 65 and older.

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

  • There are 40 consolidated city-counties in the U.S., including Denver, Colorado; Indianapolis, Indiana; Jacksonville, Florida; Louisville, Kentucky; Nashville, Tennessee; New Orleans, Louisiana; 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 far below those of most urban places.

  • The other terms for the county seat are county courthouse, the parish seat (Louisiana), the “borough seat” (Alaska), “shire town” (New England).

  • Many counties are also divided into smaller political or governmental units. For example – the Northeastern and Midwestern states of the US. These counties are divided into civil townships also called “towns” (New England, New York, and Wisconsin). These units proffer governmental or public services to the people.

IW31.01.2017


List showing states with number of Counties and Equivalents



State or District2013 PopulationLand Area (Sq Mi)Land Area (Sq Km)Number of CountiesNumber of Equivalents*Total Number#
Alabama4,833,72250,645131,17167067
Alaska735,132570,6411,477,95303030
Arizona6,626,624113,594294,20715015
Arkansas2,959,37352,035134,77175075
California38,332,521155,779403,46658058
Colorado5,268,367103,642268,43164064
Connecticut3,596,0804,84212,542808
Delaware925,7491,9495,047303
District of Columbia646,44961158011
Florida19,552,86053,625138,88767067
Georgia9,992,16757,513148,9591590159
Hawaii1,404,0546,42316,635505
Idaho1,612,13682,643214,04544044
Illinois12,882,13555,519143,7931020102
Indiana6,570,90235,82692,78992092
Iowa3,090,41655,857144,66999099
Kansas2,893,95781,759211,7541050105
Kentucky4,380,41539,486102,2691200120
Louisiana4,625,47043,204111,89806464
Maine1,328,30230,84379,88316016
Maryland5,928,8149,70725,14223124
Massachusetts6,692,8247,80020,20214014
Michigan9,895,62256,539146,43583083
Minnesota5,420,38079,627206,23287087
Mississippi2,991,20746,923121,53182082
Missouri6,044,17168,742178,0401141115
Montana1,015,165145,546376,96256056
Nebraska1,868,51676,824198,97493093
Nevada2,790,136109,781284,33216117
New Hampshire1,323,4598,95323,18710010
New Jersey8,899,3397,35419,04721021
New Mexico2,085,287121,298314,16133033
New York19,651,12747,126122,05762062
North Carolina9,848,06048,618125,9201000100
North Dakota723,39369,001178,71153053
Ohio11,570,80840,861105,82988088
Oklahoma3,850,56868,595177,66077077
Oregon3,930,06595,988248,60836036
Pennsylvania12,773,80144,743115,88367067
Rhode Island1,051,5111,0342,678505
South Carolina4,774,83930,06177,85746046
South Dakota844,87775,811196,35066066
Tennessee6,495,97841,235106,79895095
Texas26,448,193261,232676,5872540254
Utah2,900,87282,170212,81829029
Vermont626,6309,21723,87114014
Virginia8,260,40539,490102,2799538133
Washington6,971,40666,456172,11939039
West Virginia1,854,30424,03862,25955055
Wisconsin5,742,71354,158140,26872072
Wyoming582,65897,093251,47023023
Total 316,128,8393,531,9059,147,5923,0071363,143

*: 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 : January 31, 2017

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