| County : | Johnson County |
| State : | Indiana (IN) |
| Land Area : | 320.43 sq mi |
| Water Area : | 1.36 sq mi |
| Latitude : | 39.4959859 |
| Longitude : | -86.0946003 |
| Population (2010): | 139,654 |
| Population Estimate (2012) : | 140,033 |
| Population Density : | 435.84/sq mi |
| Housing Units (2012) : | 56,649 |
| Median Household Income (2012) : | $62,888 (Indiana : $48,374, USA : $53,046) |
| Median Family Income (2012) : | $74,163 (Indiana : $60,012, USA : $64,585) |
| Median House Price (2012) : | $145,900 (Indiana : $123,400, USA : $181,400) |
Johnson County Cities / Towns
| Bargersville Town (4,013) | Edinburgh Town (4,480) | Franklin City (23,712) |
| Greenwood City (49,791) | New Whiteland Town (5,472) | Princes Lakes Town (1,312) |
| Trafalgar Town (1,101) | Whiteland Town (4,169) |
Johnson County Zip Codes
| 46106 (5,928) | 46124 (8,127) | 46131 (31,036) |
| 46142 (30,413) | 46143 (48,555) | 46151 (30,921) |
| 46160 (6,421) | 46162 (458) | 46164 (3,957) |
| 46181 (4,832) | 46184 (11,806) | 46259 (11,617) |