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| County : | Johnston County |
| State : | North Carolina (NC) |
| Land Area : | 791.29 sq mi |
| Water Area : | 4.21 sq mi |
| Latitude : | 35.5134050 |
| Longitude : | -78.3672671 |
| Population (2010): | 168,878 |
| Population Estimate (2012) : | 169,122 |
| Population Density : | 213.42/sq mi |
| Housing Units (2012) : | 67,682 |
| Median Household Income (2012) : | $50,132 (North Carolina : $46,450, USA : $53,046) |
| Median Family Income (2012) : | $59,349 (North Carolina : $57,146, USA : $64,585) |
| Median House Price (2012) : | $140,700 (North Carolina : $153,600, USA : $181,400) |
Johnston County Cities / Towns
| Archer Lodge Town (4,292) | Benson Town (3,311) | Clayton Town (16,116) |
| Four Oaks Town (1,921) | Kenly Town (1,339) | Micro Town (441) |
| Pine Level Town (1,700) | Princeton Town (1,194) | Selma Town (6,073) |
| Smithfield Town (10,966) | Wilson's Mills Town (2,277) |
Johnston County Zip Codes
| 27501 (17,571) | 27504 (14,566) | 27520 (36,357) |
| 27524 (12,338) | 27527 (18,216) | 27529 (42,128) |
| 27542 (9,133) | 27555 (441) | 27557 (7,509) |
| 27568 (480) | 27569 (8,022) | 27576 (17,091) |
| 27577 (22,911) | 27591 (19,589) | 27592 (15,244) |
| 27597 (22,181) | 27603 (47,033) | 28334 (24,908) |
| 28366 (5,061) |