Custer is a city in Custer County, South Dakota, United States. The population was 1,987 at the 2010 census. It is the county seat of Custer County.
According to the United States Census Bureau, the city has a total area of 2.54 square miles (6.58 km), of which, 2.53 square miles (6.55 km) is land and 0.01 square miles (0.03 km) is water.
Custer has been assigned the ZIP code 57730 and the FIPS place code 15140. Its primary telephone prefix is 673 in area code 605.
As of the census of 2010, there were 1987 people, 956 households, and 535 families residing in the city. The population density was 817.0 inhabitants per square mile (315.4/km).
There were 1,129 housing units at an average density of 446.2 per square mile (172.3/km). The racial makeup of the city was 94.8% White, 0.5% African American, 2.6% Native American, 0.2% Asian, 0.5% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 2.6% of the population.
There were 956 households of which 24.3% had children under the age of 18 living with them, 44.5% were married couples living together, 8.2% had a female householder with no husband present, 3.3% had a male householder with no wife present, and 44.0% were non-families. 40.2% of all households were made up of individuals and 16.6% had someone living alone who was 65 years of age or older. The average household size was 2.06 and the average family size was 2.74.
The median age in the city was 47.5 years. 21.2% of residents were under the age of 18; 5.1% were between the ages of 18 and 24; 21.2% were from 25 to 44; 29.7% were from 45 to 64; and 22.9% were 65 years of age or older. The gender makeup of the city was 47.8% male and 52.2% female.
As of the census of 2000, there were 1,860 people, 825 households, and 491 families residing in the city. The population density was 1,033.6 people per square mile (399.0/km²). There were 934 housing units at an average density of 519.0 per square mile (200.3/km²). The racial makeup of the city was 95.97% White, 0.38% African American, 1.61% Native American, 0.16% Asian, 0.38% from other races, and 1.51% from two or more races. Hispanic or Latino of any race were 1.51% of the population.
There were 825 households out of which 27.8% had children under the age of 18 living with them, 48.6% were married couples living together, 9.0% had a female householder with no husband present, and 40.4% were non-families. 36.5% of all households were made up of individuals and 16.6% had someone living alone who was 65 years of age or older. The average household size was 2.17 and the average family size was 2.85.
In the city, the population was spread out with 23.3% under the age of 18, 6.8% from 18 to 24, 24.6% from 25 to 44, 25.7% from 45 to 64, and 19.6% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 92.5 males. For every 100 females age 18 and over, there were 86.6 males.
As of 2000 the median income for a household in the city was $31,739, and the median income for a family was $41,313. Males had a median income of $28,942 versus $19,688 for females. The per capita income for the city was $17,216. About 6.7% of families and 11.3% of the population were below the poverty line, including 13.9% of those under age 18 and 13.2% of those age 65 or over.
Although the incorporated city has a small population, many residents associated with it and the workforce live outside the city limits in unincorporated Custer County. A steady stream of tourists year round and those attracted to the annual Sturgis Motorcycle Rally add much to the economy and seasonal population of the city.
Custer South Dakota neighborhoods include: Boot Hill, Little Italy Road, Lynn Drive, Silver Star, W Custer Pleasant Valley