Clay County, Kansas Facts
| Facts | |
| State | Kansas |
| Land area | 645.3 square miles |
| Population Density | 13.2 persons per square mile. |
| Population | |
| Population (2013) | 8,406 |
| Population change | -1.5% | Under 5 years of age | 6.5% |
| Under 18 | 23.2% |
| 65 and over | 21.5% |
| Females | 50.5% |
| White | 97.2 |
| Hispanic or Latino of any race | 2.5 |
| Asian | 0.4% |
| Two or more races | 1.2% |
| Black or African American | 0.6% |
| Native American | 0.5% |
| Pacific Islander | 0.1% |
| Had graduated from high school | 95% |
| Had a bachelor’s degree or higher | 20.7% |
| Veterans | 962 |
| Households and Housing | |
| Households | 3,407 |
| Persons per household | 2.5 |
| Living in the same house for one year or more | 89% |
| Median household income | $45,233 |
| The per capita income | $24,503 |
| Live below the poverty line. | 14% |
| housing units | 4,032 |
| Multi-unit structures | 10% |
| The median value of owner-occupied housing | $85,700 |
| Residents owning their homes. | 76.6% |
| Business Facts | |
| Total number of firms | 647 |
| 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 | $76,023 |
| Retail sales per capita | $8,756 |
| Manufacturers shipments | $0 |
| Merchant wholesaler sales | $99,290 |