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> Pennsylvania > Zip Code 15557
| Zip Code : | 15557 |
| City : | Casselman borough, New Centerville borough, Rockwood borough |
| County : | Somerset County, Fayette County |
| State : | Pennsylvania (PA) |
| Land Area : | 90.77 sq mi |
| Water Area : | 0.11 sq mi |
| Latitude : | 39.9276631 |
| Longitude : | -79.2183708 |
| Population (2010): | 3,684 |
| Population Estimate (2012) : | 3,651 |
| Population Density : | 40.59/sq mi |
| Housing Units (2012) : | 2,110 |
| Median Household Income (2012) : | $45,192 (Pennsylvania : $52,267, USA : $53,046) |
| Median Family Income (2012) : | $54,527 (Pennsylvania : $65,980, USA : $64,585) |
| Median House Price (2012) : | $95,800 (Pennsylvania : $164,900, USA : $181,400) |