| County : | St. Francois County |
| State : | Missouri (MO) |
| Land Area : | 451.88 sq mi |
| Water Area : | 2.79 sq mi |
| Latitude : | 37.8107068 |
| Longitude : | -90.4738684 |
| Population (2010): | 65,359 |
| Population Estimate (2012) : | 65,246 |
| Population Density : | 144.64/sq mi |
| Housing Units (2012) : | 28,458 |
| Median Household Income (2012) : | $36,716 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $47,690 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $100,000 (Missouri : $138,400, USA : $181,400) |
St. Francois County Cities / Towns
| Bismarck City (1,546) | Bonne Terre City (6,864) | Desloge City (5,054) |
| Doe Run (915) | Farmington City (16,240) | Frankclay (221) |
| Iron Mountain Lake City (737) | Leadington City (422) | Leadwood City (1,282) |
| Park Hills City (8,759) | Terre du Lac (2,320) | Wortham (275) |
St. Francois County Zip Codes
| 63036 (1,064) | 63087 (769) | 63601 (16,656) |
| 63624 (3,757) | 63626 (1,037) | 63628 (16,014) |
| 63630 (4,062) | 63637 (1,329) | 63640 (26,335) |
| 63645 (11,420) | 63648 (1,628) | 63650 (4,401) |
| 63653 (1,206) |