Jefferson County, Missouri Facts
| Facts | |
| State | Missouri |
| Land area | 656.6 square miles |
| Population Density | 333.1 persons per square mile. |
| Population | |
| Population (2013) | 221,396 |
| Population change | 1.2% | Under 5 years of age | 6.4% |
| Under 18 | 24.2% |
| 65 and over | 12.8% |
| Females | 50.3% |
| White | 96.6 |
| Hispanic or Latino of any race | 1.7 |
| Asian | 0.7% |
| Two or more races | 1.3% |
| Black or African American | 1% |
| Native American | 0.3% |
| Pacific Islander | 0% |
| Had graduated from high school | 87% |
| Had a bachelor’s degree or higher | 17.4% |
| Veterans | 17,825 |
| Households and Housing | |
| Households | 80,812 |
| Persons per household | 2.7 |
| Living in the same house for one year or more | 89.2% |
| Median household income | $54,845 |
| The per capita income | $24,792 |
| Live below the poverty line. | 11.3% |
| housing units | 88,134 |
| Multi-unit structures | 9% |
| The median value of owner-occupied housing | $152,100 |
| Residents owning their homes. | 82.6% |
| Business Facts | |
| Total number of firms | 15,398 |
| Women-owned firms | 26.6% |
| Asian-owned firms | 0% |
| Hispanic-owned firms | 0% |
| Black-owned firms | 0% |
| Native American-owned firms | 0% |
| Pacific Islander-owned firms | 0% |
| Retail sales | $1,709,786 |
| Retail sales per capita | $7,919 |
| Manufacturers shipments | $1,538,071 |
| Merchant wholesaler sales | $782,821 |