Custer County, Idaho Facts
| Facts | |
| State | Idaho |
| Land area | 4,920.9 square miles |
| Population Density | 0.9 persons per square mile. |
| Population | |
| Population (2013) | 4,249 |
| Population change | -2.7% | Under 5 years of age | 4.4% |
| Under 18 | 18.3% |
| 65 and over | 22.1% |
| Females | 48.5% |
| White | 97.1 |
| Hispanic or Latino of any race | 4.2 |
| Asian | 0.3% |
| Two or more races | 1.5% |
| Black or African American | 0.3% |
| Native American | 0.8% |
| Pacific Islander | 0.1% |
| Had graduated from high school | 90% |
| Had a bachelor’s degree or higher | 26.3% |
| Veterans | 547 |
| Households and Housing | |
| Households | 1,870 |
| Persons per household | 2.3 |
| Living in the same house for one year or more | 91.6% |
| Median household income | $39,541 |
| The per capita income | $23,965 |
| Live below the poverty line. | 16.1% |
| housing units | 3,081 |
| Multi-unit structures | 5% |
| The median value of owner-occupied housing | $150,600 |
| Residents owning their homes. | 83.5% |
| Business Facts | |
| Total number of firms | 318 |
| 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 | $35,092 |
| Retail sales per capita | $8,542 |
| Manufacturers shipments | $0 |
| Merchant wholesaler sales | $0 |