Gas City is a city in Grant County, Indiana, along the Mississinewa River. The population was 5,965 at the 2010 census. History Gas City was first known as Harrisburg when settled on May 25, 1867, by Noah Harris. It became something of a boom town when natural gas was found in the area in 1887. The Gas City Land Company was founded on March 21, 1892, and the town of about 150 people changed its name to Gas City a few days later. However, as of 2022 much of the gas is depleted. (See Indiana gas boom.) The Gas City High School, Thompson-Ray House, and West Ward School are listed on the National Register of Historic Places. Gas City annually hosts the Ducktail Run Rod and Custom Car Show in the Fall. The "Ducktail Run," as it is known to locals, is a large car show featuring vehicles from 1972 and older. In the year 2020, the Festival had 2,020 vehicles register to appear. Geography Gas City is located at (40.488190, -85.605649). According to the 2010 census, Gas City has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 5,965 people, 2,410 households, and 1,632 families living in the city. The population density was . There were 2,597 housing units at an average density of . The racial makeup of the city was 96.2% White, 0.9% African American, 0.3% Native American, 0.4% Asian, 0.4% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 2.4% of the population. There were 2,410 households, of which 34.0% had children under the age of 18 living with them, 47.2% were married couples living together, 15.1% had a female householder with no husband present, 5.4% had a male householder with no wife present, and 32.3% were non-families. 27.4% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.92. The median age in the city was 39.4 years. 24.6% of residents were under the age of 18; 7.4% were between the ages of 18 and 24; 25.6% were from 25 to 44; 27.1% were from 45 to 64; and 15.4% were 65 years of age or older. The gender makeup of the city was