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.
History
In 1787, the US defined the Northwest Territory which included the area of present-day Indiana. In 1800, Congress separated Ohio from the Northwest Territory, designating the rest of the land as the Indiana Territory. President Thomas Jefferson chose William Henry Harrison as the governor of the territory, and Vincennes was established as the capital. After the Michigan Territory was separated and the Illinois Territory was formed, Indiana was reduced to its current size and geography. By December 1816 the Indiana Territory was admitted to the Union as a state.
Starting in 1794, Native American titles to Indiana lands were extinguished by usurpation, purchase, or war and treaty. The United States acquired land from the Native Americans in the 1809 treaty of Fort Wayne, and by the treaty of St. Mary's in 1818 considerably more territory became property of the government. This included the future Decatur County, which was authorized by the state legislature on 12 December 1821. No settler was allowed in the area until the government survey was completed in 1820.
The Decatur County governing structure was formed in 1822. The county was named for Commodore Stephen Decatur, Jr., naval officer in the First and Second Barbary Wars, and in the War of 1812. Decatur was killed in a duel in 1820.
Geography
The low rolling hills are devoted to agriculture or urban development, with only the areas carved by drainages still wooded. The highest point (1,097 feet/334 meters ASL) is a hillock 0.8 mile (1.3 km) SSE from Kingston.
The Flatrock River flows westward through the upper part of the county, continuing into Shelby County. Clifty Creek flows southwestward through the central part of the county, continuing into Bartholomew, and Sand Creek flows south-southwestward through the lower center of the county, continuing into Jennings County.
According to the 2010 census, the county has a total area of , of which (or 99.80%) is land and (or 0.20%) is water.
right|thumb|Tree on the Courthouse Tower in Greensburg, Indiana
Adjacent counties
Rush County – north
Franklin County – east
Ripley County – southeast
Jennings County – south
Bartholomew County – west
Shelby County – northwest
City and towns
Greensburg (city/county seat)
Millhousen
New Point
St. Paul (part)
Westport
Census-designated places
Clarksburg
Lake Santee
Unincorporated places
Adams
Alert
Burney
Craig
Downeyville
Ewington
Forest Hill
Gaynorsville
Germantown
Harper
Harris City
Horace
Kingston
Knarr Corner
Letts
Letts Corner
McCoy
Mechanicsburg
Milford
New Pennington
Pinhook
Rossburg
Saint Maurice
Saint Omer
Sandusky
Sardinia
Slabtown
Smyrna
Tarkeo Corner
Waynesburg
Williamstown
Townships
Adams
Clay
Clinton
Fugit
Jackson
Marion
Salt Creek
Sand Creek
Washington
Major highways
20px Interstate 74
20px U.S. Route 421
20px Indiana State Road 3
20px Indiana State Road 46
Protected areas
Greenburg Reservoir State Fishing Area
Lakes
Greenburg Reservoir
Lake McCoy
Lake Santee
Climate and weather
In recent years, average temperatures in Greensburg have ranged from a low of in January to a high of in July, although a record low of was recorded in January 1985 and a record high of was recorded in July 1954. Average monthly precipitation ranged from in February to in May.
Government
The county government is a constitutional body, and is granted specific powers by the Constitution of Indiana, and by the Indiana Code.
County Council: The legislative branch of the county government; controls spending and revenue collection in the county. Representatives are elected to four-year terms from county districts. They set salaries, the annual budget, and special spending. The council has limited authority to impose local taxes, in the form of an income and property tax that is subject to state level approval, excise taxes, and service taxes.
Board of Commissioners: The executive body of the county; commissioners are elected county-wide to staggered four-year terms. One commissioner serves as president. The commissioners execute acts legislated by the council, collect revenue, and manage the county government.
Court: The county maintains a small claims court that handles civil cases. The judge on the court is elected to a term of four years and must be a member of the Indiana Bar Association. The judge is assisted by a constable who is also elected to a four-year term. In some cases, court decisions can be appealed to the state level circuit court.
County Officials: The county has other elected offices, including sheriff, coroner, auditor, treasurer, recorder, surveyor, and circuit court clerk. These officers are elected to four-year terms. Members elected to county government positions are required to declare a party affiliation and to be residents of the county.
Decatur County is part of Indiana's 6th congressional district; Indiana Senate district 42; and Indiana House of Representatives district 67.
Demographics
2010 Census
As of the 2010 United States Census, there were 25,740 people, 9,977 households, and 6,995 families in the county. The population density was . There were 11,209 housing units at an average density of . 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.