Butler is a city in DeKalb County, Indiana, United States. The population was 2,684 at the 2010 census. History Butler was platted in 1856 when the railroad was extended to that point. It was likely named for David Butler, a pioneer. Butler was incorporated as a town in 1866, and as a city in 1903. On July 23, 1966, Butler was one of the end points of a record-setting speed run by a New York Central RDC-3, M-497 Black Beetle, modified with a pair of jet engines, as the rail line between it and Stryker, Ohio, was both straight and flat. The car reached a speed of , an American rail speed record that still stands today. The Downtown Butler Historic District was added to the National Register of Historic Places in 2001. Geography Butler is located at . According to the 2010 census, Butler has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 2,684 people, 951 households, and 668 families living in the city. The population density was . There were 1,089 housing units at an average density of . The racial makeup of the city was 94.9% White, 0.5% African American, 0.4% Native American, 0.2% Asian, 2.3% from other races, and 1.8% from two or more races. Hispanic or Latino of any race were 4.3% of the population. There were 951 households, of which 43.0% had children under the age of 18 living with them, 44.8% were married couples living together, 15.7% had a female householder with no husband present, 9.8% had a male householder with no wife present, and 29.8% were non-families. 24.4% of all households were made up of individuals, and 7.8% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.17. The median age in the city was 33.7 years. 29.3% of residents were under the age of 18; 8.9% were between the ages of 18 and 24; 27.1% were from 25 to 44; 22.7% were from 45 to 64; and 11.9% were 65 years of age or older. The gender makeup of the city was 49.9% male and 50.1% female. 2000 census As of the census of 2000, there were 2,725 people, 983 households, and 699 families living in the city. The population density was . There were 1,075