| Zip Code : | 48813 |
| City : | Charlotte city, Potterville city |
| County : | Calhoun County, Eaton County |
| State : | Michigan (MI) |
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| Land Area : | 169.80 sq mi |
| Water Area : | 0.51 sq mi |
| Latitude : | 42.5797018 |
| Longitude : | -84.8458295 |
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| Population (2010): | 21,182 |
| Population Estimate (2012) : | 21,121 |
| Population Density : | 124.74/sq mi |
| Housing Units (2012) : | 8,791 |
| Median Household Income (2012) : | $53,355 (Michigan : $48,471, USA : $53,046) |
| Median Family Income (2012) : | $58,801 (Michigan : $60,749, USA : $64,585) |
| Median House Price (2012) : | $137,300 (Michigan : $128,600, USA : $181,400) |