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> Pennsylvania > Karns City Borough
| City : | Karns City Borough |
| County : | Butler County |
| State : | Pennsylvania (PA) |
| Land Area : | 0.36 sq mi |
| Water Area : | 0.00 sq mi |
| Latitude : | 40.9969514 |
| Longitude : | -79.7263529 |
| Population (2010): | 209 |
| Population Estimate (2012) : | 258 |
| Population Density : | 576.32/sq mi |
| Housing Units (2012) : | 97 |
| Median Household Income (2012) : | $43,203 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $43,542 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $87,900 (Pennsylvania : $164,900, USA : $181,400) |