| Zip Code : | 38401 |
| City : | Columbia city, Mount Pleasant city, Spring Hill city |
| County : | Williamson County, Marshall County, Maury County |
| State : | Tennessee (TN) |
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| Land Area : | 300.72 sq mi |
| Water Area : | 2.17 sq mi |
| Latitude : | 35.6291642 |
| Longitude : | -87.0215261 |
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| Population (2010): | 54,469 |
| Population Estimate (2012) : | 54,028 |
| Population Density : | 181.13/sq mi |
| Housing Units (2012) : | 23,943 |
| Median Household Income (2012) : | $42,722 (Tennessee : $44,140, USA : $53,046) |
| Median Family Income (2012) : | $54,479 (Tennessee : $54,737, USA : $64,585) |
| Median House Price (2012) : | $131,400 (Tennessee : $138,700, USA : $181,400) |