St. Clair County, Missouri Facts
| Facts | |
| State | Missouri |
| Land area | 670.0 square miles |
| Population Density | 14.6 persons per square mile. |
| Population | |
| Population (2013) | 9,487 |
| Population change | -3.2% | Under 5 years of age | 5% |
| Under 18 | 19.5% |
| 65 and over | 25.4% |
| Females | 49.4% |
| White | 96.4 |
| Hispanic or Latino of any race | 2.3 |
| Asian | 0.2% |
| Two or more races | 1.8% |
| Black or African American | 0.7% |
| Native American | 0.8% |
| Pacific Islander | 0% |
| Had graduated from high school | 81% |
| Had a bachelor’s degree or higher | 12.1% |
| Veterans | 1,004 |
| Households and Housing | |
| Households | 4,139 |
| Persons per household | 2.3 |
| Living in the same house for one year or more | 86.5% |
| Median household income | $31,539 |
| The per capita income | $17,337 |
| Live below the poverty line. | 21.8% |
| housing units | 5,551 |
| Multi-unit structures | 4% |
| The median value of owner-occupied housing | $81,600 |
| Residents owning their homes. | 77.6% |
| Business Facts | |
| Total number of firms | 1,039 |
| Women-owned firms | 28.3% |
| Asian-owned firms | 0% |
| Hispanic-owned firms | 0% |
| Black-owned firms | 0% |
| Native American-owned firms | 0% |
| Pacific Islander-owned firms | 0% |
| Retail sales | $64,746 |
| Retail sales per capita | $6,861 |
| Manufacturers shipments | $0 |
| Merchant wholesaler sales | $0 |