| County : | Buchanan County |
| State : | Missouri (MO) |
| Land Area : | 408.02 sq mi |
| Water Area : | 6.63 sq mi |
| Latitude : | 39.6603695 |
| Longitude : | -94.8081728 |
| Population (2010): | 89,201 |
| Population Estimate (2012) : | 89,162 |
| Population Density : | 218.62/sq mi |
| Housing Units (2012) : | 38,427 |
| Median Household Income (2012) : | $44,181 (Missouri : $47,333, USA : $53,046) |
| Median Family Income (2012) : | $55,952 (Missouri : $59,395, USA : $64,585) |
| Median House Price (2012) : | $108,300 (Missouri : $138,400, USA : $181,400) |
Buchanan County Cities / Towns
| Agency Village (684) | De Kalb Town (220) | Easton City (234) |
| Gower City (1,526) | Lewis And Clark Village Town (132) | Rushville Town (303) |
| St. Joseph City (76,780) |
Buchanan County Zip Codes
| 64401 (1,417) | 64439 (1,642) | 64440 (737) |
| 64443 (1,096) | 64444 (1,340) | 64448 (1,104) |
| 64454 (2,667) | 64484 (1,229) | 64490 (2,056) |
| 64501 (12,503) | 64503 (12,921) | 64504 (10,763) |
| 64505 (13,161) | 64506 (24,030) | 64507 (13,738) |