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| County : | Lamar County |
| State : | Mississippi (MS) |
| Land Area : | 497.05 sq mi |
| Water Area : | 3.38 sq mi |
| Latitude : | 31.1971349 |
| Longitude : | -89.5149516 |
| Population (2010): | 55,658 |
| Population Estimate (2012) : | 55,580 |
| Population Density : | 111.98/sq mi |
| Housing Units (2012) : | 24,070 |
| Median Household Income (2012) : | $50,743 (Mississippi : $38,882, USA : $53,046) |
| Median Family Income (2012) : | $64,879 (Mississippi : $48,300, USA : $64,585) |
| Median House Price (2012) : | $160,900 (Mississippi : $100,200, USA : $181,400) |
Lamar County Cities / Towns
| Arnold Line (1,719) | Hattiesburg City (45,989) | Lumberton City (2,086) |
| Purvis City (2,175) | Sumrall Town (1,421) | West Hattiesburg (5,909) |
Lamar County Zip Codes
| 39401 (43,366) | 39402 (37,492) | 39429 (17,657) |
| 39455 (9,721) | 39475 (12,225) | 39482 (9,746) |