Decatur County, Indiana

Decatur County: County in Indiana, United States

About

Decatur County is a county located in the U.S. state of Indiana. As of the 2010 census, the population was 25,740 and a population density of 27 people per km². After 10 years in 2020 county had an estimated population of 26,584 inhabitants. Its county seat is Greensburg. The county was created 203 years ago in 1821.

Decatur County locator map
Location of Decatur County on Indiana map.

Quick Facts about Decatur County

Population : 26,584 (2020)
Country : United States of America
State : Indiana (United States)
Different from : Decatur County, Decatur County, Decatur County, Decatur County
Area : 967 km2
Water as percent of area : 0.2%
Land as percent of area : 99.8%
Named for : Stephen Decatur
Capital : Greensburg
Establishment : January 01, 1822
Time Zone : Eastern Time Zone
Local time : 12:34:52 (22nd February 2025)
Density : 27 Pop. per km² as of 2020
Population growth : 3.17% (2010-2020)
Decatur County Courthouse in Greensburg from southeast image
Decatur County Courthouse in Greensburg from southeast
Decatur County Courthouse in Greensburg from southeast image
Decatur County Courthouse in Greensburg from southeast image

Geography

Decatur County is located at 39°18'25"N 85°30'4"W (39.3070000, -85.5011400). It has 5 neighbors: Bartholomew County, Franklin County, Jennings County, Rush County and Shelby County.

Decatur County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Decatur County is Greensburg with a population of 11,984. Other cities include, Westport population 1,416, Saint Paul population 1,059, Craig population 870 and Adams population 861. See all Decatur County cities & populated places.

Decatur County Populated Places

Cities, towns, neighborhoods & other populated places in Decatur County.

City Name Population Title
Greensburg 11,984 City in Indiana
Milford 3,095 Town in Kosciusko County, Indiana, United States
Westport 1,416 Human settlement in Decatur County, Indiana, United States of America
Saint Paul 1,059 Human settlement in Decatur County, Indiana, United States of America
Craig 870 Unincorporated community in Decatur County, Indiana
Adams 861 Unincorporated community in Decatur County, Indiana
New Point 340 Human settlement in Decatur County, Indiana, United States of America
Millhousen 130 Human settlement in Decatur County, Indiana, United States of America

Decatur County has 5 neighbours.

  • Greensburg

Demographics

The population of Decatur County increased by 3.17% in 10 years.

Year Population % Change Method
2010 25,740 - census
2011 25,902 0.63% estimation process
2012 26,043 0.54% estimation process
2013 26,236 0.74% estimation process
2014 26,416 0.68% estimation process
2015 26,339 -0.29% estimation process
2016 26,565 0.85% estimation process
2017 26,620 0.21% estimation process
2018 26,725 0.39% estimation process
2019 26,559 -0.63% estimation process
2020 26,584 0.09% estimation process

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People born in Decatur County (3)

People born in Decatur County, including baseball player Bob Wright, soldier Marion T. Anderson, Medal of Honor recipient James Dunlavy, .

List

Other places with the same name (5)

Indiana Other Counties (more counties)

County Name Population Title
Marion County 966,183 County in Oregon, United States
Indianapolis 877,903 The sixteenth most populous city in the United States and the center of the Indianapolis metropolitan area.
Lake County 487,536 County in Indiana, United States
Allen County 382,187 County in Indiana, United States
Hamilton County 344,238 County in Indiana, United States
Fort Wayne 272,398 The second most populous city in Indiana and the center of the Fort Wayne metropolitan area.
Saint Joseph County 271,484 County in Indiana, United States
Elkhart County 206,161 County in Indiana, United States
Tippecanoe County 196,115 County in the northwest quadrant of Indiana, United States
Vanderburgh County 182,447 County in Indiana, United States
Hendricks County 173,251 County in Indiana, United States
Porter County 170,980 County in Indiana, United States
Johnson County 160,607 County in Indiana, United States
Monroe County 148,219 County in Indiana, United States
Madison County 129,681 County in Indiana, United States
Clark County 119,266 County in Indiana, United States