The terrain of Hancock County is low rolling hills, sloping to the south and southwest, carved by drainages. All available area is devoted to agriculture or urban development.[3] The highest point is a small prominence in NW Shirley, at 1,040 ft (320 m) ASL.[4]
According to the 2010 census, the county has a total area of 307.02 square miles (795.2 km2), of which 306.02 square miles (792.6 km2) (or 99.67%) is land and 1.01 square miles (2.6 km2) (or 0.33%) is water.[5]
Indiana was admitted as a state to the United States on December 11, 1816, although much of its territory was still disputed or held by native peoples at that time. These indigenous claims were quickly reduced and removed by various treaties. The 1818 Treaty with the Delaware Indians brought most of central Indiana into state control, and Madison County was organized on a portion of that area. The lower portion of Madison County was quickly settled, and by the late 1820s the inhabitants were petitioning for a separate county government. Accordingly, a portion of the county was partitioned on March 1, 1828, to form Hancock County. Greenfield was named as the county seat on April 11. The county name recognized John Hancock, president of the Continental Congress, who had signed his name prominently to the Declaration of Independence in 1776.[6][7] The county has retained its original borders since its 1828 creation.
In recent years, average temperatures in Greenfield have ranged from a low of 17 °F (−8 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −29 °F (−34 °C) was recorded in January 1985 and a record high of 103 °F (39 °C) was recorded in June 1988. Average monthly precipitation ranged from 2.37 inches (60 mm) in February to 4.85 inches (123 mm) in July.[8]
County Council: The legislative branch of the county government; controls the county's spending and revenue collection. Representatives are elected from county districts. The council members serve staggered four-year terms. They are responsible for setting salaries, the annual budget, and special spending. The council also 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.[9][10]
Board of Commissioners: The executive body of the county. The commissioners are elected county-wide, in staggered four-year terms. One commissioner serves as president. The commissioners carry out the acts legislated by the council, collecting revenue, and managing the day-to-day functions of the county government.[9][10]
Court: The county maintains a small claims court that can handle some 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.[10]
County Officials: The county has several other elected offices, including sheriff, coroner, auditor, treasurer, recorder, surveyor, and circuit court clerk. They are elected to four-year terms. Members elected to county government positions are required to declare party affiliations and to be residents of the county.[10]
As of the 2010 United States Census, there were 70,002 people, 26,304 households, and 19,792 families in the county.[23] The population density was 228.8 inhabitants per square mile (88.3/km2). There were 28,125 housing units at an average density of 91.9 per square mile (35.5/km2).[5] The racial makeup of the county was 95.2% white, 2.1% black or African American, 0.8% Asian, 0.2% American Indian, 0.4% from other races, and 1.2% from two or more races. Those of Hispanic or Latino origin made up 1.7% of the population.[23] In terms of ancestry, 26.2% were German, 13.9% were Irish, 11.8% were English, and 11.8% were American.[24]
Of the 26,304 households, 37.2% had children under the age of 18 living with them, 61.0% were married couples living together, 9.8% had a female householder with no husband present, 24.8% were non-families, and 20.3% of all households were made up of individuals. The average household size was 2.64 and the average family size was 3.03. The median age was 39.1 years.[23]
The median income for a household in the county was $47,697 and the median income for a family was $69,734. Males had a median income of $53,565 versus $38,042 for females. The per capita income for the county was $28,017. About 5.9% of families and 7.3% of the population were below the poverty line, including 8.0% of those under age 18 and 5.2% of those age 65 or over.[25]
