Custer County, South Dakota Facts
| Facts | |
| State | South Dakota |
| Land area | 1,557 square miles |
| Population Density | 5.3 persons per square mile. |
| Population | |
| Population (2013) | 8,468 |
| Population change | 3.1% | Under 5 years of age | 4.2% |
| Under 18 | 17.5% |
| 65 and over | 23.8% |
| Females | 49.9% |
| White | 93.2 |
| Hispanic or Latino of any race | 2.9 |
| Asian | 0.6% |
| Two or more races | 2% |
| Black or African American | 0.7% |
| Native American | 3.4% |
| Pacific Islander | 0% |
| Had graduated from high school | 94% |
| Had a bachelor’s degree or higher | 27.7% |
| Veterans | 1,183 |
| Households and Housing | |
| Households | 3,731 |
| Persons per household | 2.1 |
| Living in the same house for one year or more | 87.8% |
| Median household income | $50,074 |
| The per capita income | $28,356 |
| Live below the poverty line. | 10.3% |
| housing units | 4,732 |
| Multi-unit structures | 5% |
| The median value of owner-occupied housing | $192,000 |
| Residents owning their homes. | 80% |
| Business Facts | |
| Total number of firms | 1,225 |
| Women-owned firms | 0% |
| Asian-owned firms | 0% |
| Hispanic-owned firms | 0% |
| Black-owned firms | 0% |
| Native American-owned firms | 0% |
| Pacific Islander-owned firms | 0% |
| Retail sales | $51,478 |
| Retail sales per capita | $6,529 |
| Manufacturers shipments | $0 |
| Merchant wholesaler sales | $0 |