Hill City is the oldest existing city in Pennington County, South Dakota, United States. The population was 948 at the 2010 census. Hill City is located 26 miles (42 km) southwest of Rapid City on U.S. Highway 16 and on U.S. Route 385 that connects Deadwood to Hot Springs. Hill City is known as the “Heart of the Hills” which is derived from its close proximity to both the geographical center of the Black Hills, and the local tourist destinations.
As of the census of 2016 there were 1008 people, 394 households, and 244 families residing in the city. The population density was 752.4 inhabitants per square mile (290.5/km). There were 473 housing units at an average density of 375.4 per square mile (144.9/km). The racial makeup of the city was 82.1% White, 0.6% African American, 4.0% Native American, 0.1% Asian, 10.4% from other races, and 2.7% from two or more races. Hispanic or Latino of any race were 18.9% of the population.
There were 394 households of which 33.0% had children under the age of 18 living with them, 49.2% were married couples living together, 7.9% had a female householder with no husband present, 4.8% had a male householder with no wife present, and 38.1% were non-families. 30.7% of all households were made up of individuals and 9.7% had someone living alone who was 65 years of age or older. The average household size was 2.41 and the average family size was 3.05.
The median age in the city was 37.9 years. 25.8% of residents were under the age of 18; 8.7% were between the ages of 18 and 24; 24.7% were from 25 to 44; 27.6% were from 45 to 64; and 13.4% were 65 years of age or older. The gender makeup of the city was 51.2% male and 48.8% female.
As of the census of 2000, there were 780 people, 298 households, and 213 families residing in the city. The population density was 1,013.5 people per square mile (391.1/km). There were 340 housing units at an average density of 441.8 per square mile (170.5/km). The racial makeup of the city was 89.74% White, 3.46% Native American, 0.26% Asian, 4.36% from other races, and 2.18% from two or more races. Hispanic or Latino of any race were 7.05% of the population.
There were 298 households out of which 39.3% had children under the age of 18 living with them, 52.3% were married couples living together, 13.1% had a female householder with no husband present, and 28.2% were non-families. 24.5% of all households were made up of individuals and 7.4% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.11.
In the city, the population was spread out with 31.2% under the age of 18, 7.6% from 18 to 24, 30.3% from 25 to 44, 20.4% from 45 to 64, and 10.6% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 94.0 males. For every 100 females age 18 and over, there were 85.8 males.
The median income for a household in the city was $32,500, and the median income for a family was $37,500. Males had a median income of $30,114 versus $17,000 for females. The per capita income for the city was $15,789. About 12.5% of families and 13.7% of the population were below the poverty line, including 17.5% of those under age 18 and 13.3% of those age 65 or over.