Decatur County, Indiana facts for kids
Quick facts for kids
Decatur County
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![]() Decatur County Courthouse in Greensburg
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![]() Location within the U.S. state of Indiana
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![]() Indiana's location within the U.S. |
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Country | ![]() |
State | ![]() |
Founded | 12 December 1821 (authorized) 1822 (organized) |
Named for | Stephen Decatur, Jr. |
Seat | Greensburg |
Largest city | Greensburg |
Area | |
• Total | 373.32 sq mi (966.9 km2) |
• Land | 372.57 sq mi (965.0 km2) |
• Water | 0.76 sq mi (2.0 km2) 0.20%% |
Population | |
• Estimate
(2018)
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26,794 |
• Density | 71.9/sq mi (27.8/km2) |
Congressional district | 6th |
Indiana county number 16 |
Decatur County is a county in the U.S. state of Indiana. As of the 2010 United States Census, the population was 25,740. The county seat (and only incorporated city) is Greensburg.
Contents
History
Decatur County was formed in 1822. It was named for Commodore Stephen Decatur, Jr., naval officer in the First and Second Barbary Wars, and in the War of 1812. Decatur was mortally wounded in a duel in 1820. Greensburg, the county seat, was selected as the location of the Honda assembly plant.
Geography

According to the 2010 census, the county has a total area of 373.32 square miles (966.9 km2), of which 372.57 square miles (965.0 km2) (or 99.80%) is land and 0.76 square miles (2.0 km2) (or 0.20%) is water.
City
Towns
Census-designated places
Other unincorporated places
Townships
- Adams
- Clay
- Clinton
- Fugit
- Jackson
- Marion
- Salt Creek
- Sand Creek
- Washington
Major highways
Interstate 74
U.S. Route 421
Indiana State Road 3
Indiana State Road 46
Adjacent counties
- Rush County (north)
- Franklin County (east)
- Ripley County (southeast)
- Jennings County (south)
- Bartholomew County (west)
- Shelby County (northwest)
Climate and weather
Weather chart for Greensburg, Indiana | |||||||||||||||||||||||||||||||||||||||||||||||
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J | F | M | A | M | J | J | A | S | O | N | D | ||||||||||||||||||||||||||||||||||||
2.6
34
19
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2.4
40
22
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3.7
50
32
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4.3
62
42
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5
72
53
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4.3
81
62
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4.1
85
65
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4.2
83
63
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3.1
77
56
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3.1
65
44
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3.8
51
35
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3.2
40
25
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temperatures in °F precipitation totals in inches source: The Weather Channel |
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Metric conversion
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In recent years, average temperatures in Greensburg have ranged from a low of 19 °F (−7 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −24 °F (−31 °C) was recorded in January 1985 and a record high of 105 °F (41 °C) was recorded in July 1954. Average monthly precipitation ranged from 2.42 inches (61 mm) in February to 5.03 inches (128 mm) in May.
Demographics
Historical population | |||
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Census | Pop. | %± | |
1830 | 5,887 | — | |
1840 | 12,171 | 106.7% | |
1850 | 15,107 | 24.1% | |
1860 | 17,294 | 14.5% | |
1870 | 19,053 | 10.2% | |
1880 | 19,779 | 3.8% | |
1890 | 19,277 | −2.5% | |
1900 | 19,518 | 1.3% | |
1910 | 18,793 | −3.7% | |
1920 | 17,813 | −5.2% | |
1930 | 17,308 | −2.8% | |
1940 | 17,722 | 2.4% | |
1950 | 18,218 | 2.8% | |
1960 | 20,019 | 9.9% | |
1970 | 22,738 | 13.6% | |
1980 | 23,841 | 4.9% | |
1990 | 23,645 | −0.8% | |
2000 | 24,555 | 3.8% | |
2010 | 25,740 | 4.8% | |
2015 (est.) | 26,521 | 3.0% | |
U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2013 |
As of the 2010 United States Census, there were 25,740 people, 9,977 households, and 6,995 families residing in the county. The population density was 69.1 inhabitants per square mile (26.7/km2). There were 11,209 housing units at an average density of 30.1 per square mile (11.6/km2). The racial makeup of the county was 97.3% white, 0.7% Asian, 0.3% black or African American, 0.2% American Indian, 0.6% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 1.7% of the population. In terms of ancestry, In terms of ancestry, 35.5% were of English ancestry, 35.1% were of German, and 9.0% were of Irish ancestry according to 2010 American Community Survey.
Of the 9,977 households, 33.8% had children under the age of 18 living with them, 54.6% were married couples living together, 10.6% had a female householder with no husband present, 29.9% were non-families, and 25.0% of all households were made up of individuals. The average household size was 2.54 and the average family size was 3.02. The median age was 38.7 years.
The median income for a household in the county was $47,697 and the median income for a family was $52,308. Males had a median income of $41,143 versus $30,226 for females. The per capita income for the county was $22,719. About 8.3% of families and 10.8% of the population were below the poverty line, including 17.3% of those under age 18 and 6.8% of those age 65 or over.
Images for kids
See also
- In Spanish: Condado de Decatur (Indiana)