UpAlphabetical listing of Places in Pennsylvania
| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|
| Oak Forest | city | Pennsylvania | United States | 39.84 | -80.24 | 1669 | |
| Oak Grove | city | Pennsylvania | United States | 40.26 | -79.20 | 1669 | |
| Oak Grove | city | Pennsylvania | United States | 40.96 | -78.21 | 1669 | |
| Oak Grove | city | Pennsylvania | United States | 39.73 | -77.11 | 830 | |
| Oak Grove | city | Pennsylvania | United States | 40.19 | -80.27 | 1095 | |
| Oak Grove | city | Pennsylvania | United States | 41.01 | -76.72 | 830 | |
| Oak Grove | city | Pennsylvania | United States | 41.05 | -75.11 | 830 | |
| Oak Grove Trailer Park | city | Pennsylvania | United States | 40.29 | -75.31 | 334 | |
| Oak Hall | city | Pennsylvania | United States | 40.79 | -77.80 | 1102 | |
| Oak Hill | city | Pennsylvania | United States | 40.43 | -79.81 | 830 | |
| Oak Hill | city | Pennsylvania | United States | 41.15 | -78.12 | 1669 | |
| Oak Hill | city | Pennsylvania | United States | 41.37 | -75.72 | 898 | |
| Oak Hill | city | Pennsylvania | United States | 41.41 | -79.84 | 1669 | |
| Oak Hill | city | Pennsylvania | United States | 39.78 | -76.09 | 403 | |
| Oak Hills | city | Pennsylvania | United States | 40.82 | -79.91 | 1669 | |
| Oak Lane | city | Pennsylvania | United States | 39.91 | -75.28 | 62 | |
| Oak Lane | city | Pennsylvania | United States | 40.06 | -75.12 | 200 | |
| Oak Lane Manor | city | Pennsylvania | United States | 40.05 | -75.11 | 98 | |
| Oak Manor | city | Pennsylvania | United States | 39.92 | -76.68 | 830 | |
| Oak Park | city | Pennsylvania | United States | 40.91 | -76.76 | 830 | |
| Oak Park | city | Pennsylvania | United States | 40.25 | -75.30 | 321 | |
| Oak Ridge | city | Pennsylvania | United States | 41.01 | -79.30 | 1145 | |
| Oak Ridge | city | Pennsylvania | United States | 40.85 | -78.50 | 1755 | |
| Oak Shade | city | Pennsylvania | United States | 39.80 | -76.11 | 830 | |
| Oak Summit | city | Pennsylvania | United States | 40.10 | -75.16 | 298 | |
| Oak Tree | city | Pennsylvania | United States | 40.81 | -79.05 | 1669 | |
| Oak Wood East | city | Pennsylvania | United States | 40.26 | -75.30 | 308 | |
| Oakbourne | city | Pennsylvania | United States | 39.94 | -75.58 | 400 | |
| Oakbrook | city | Pennsylvania | United States | 40.32 | -75.93 | 200 | |
| Oakbrook Terrace | city | Pennsylvania | United States | 40.32 | -75.95 | 298 | |
| Oakdale | city | Pennsylvania | United States | 40.40 | -80.19 | 997 | |
| Oakdale | city | Pennsylvania | United States | 40.99 | -75.92 | 1669 | |
| Oakford | city | Pennsylvania | United States | 40.15 | -74.96 | 98 | |
| Oakgrove | city | Pennsylvania | United States | 40.30 | -77.28 | 830 | |
| Oakhurst | city | Pennsylvania | United States | 40.36 | -78.94 | 1197 | |
| Oakland | city | Pennsylvania | United States | 40.31 | -78.89 | 1669 | |
| Oakland | city | Pennsylvania | United States | 40.44 | -79.96 | 984 | |
| Oakland | city | Pennsylvania | United States | 40.99 | -80.37 | 1049 | |
| Oakland | city | Pennsylvania | United States | 41.24 | -80.22 | 1102 | |
| Oakland | city | Pennsylvania | United States | 41.95 | -75.60 | 898 | |
| Oakland | city | Pennsylvania | United States | 40.02 | -75.64 | 830 | |
| Oakland Mills | city | Pennsylvania | United States | 40.61 | -77.32 | 830 | |
| Oaklane | city | Pennsylvania | United States | 40.06 | -75.12 | 200 | |
| Oakleigh | city | Pennsylvania | United States | 40.26 | -76.82 | 400 | |
| Oakley | city | Pennsylvania | United States | 41.74 | -75.75 | 977 | |
| Oaklyn | city | Pennsylvania | United States | 40.86 | -76.75 | 830 | |
| Oakmont | city | Pennsylvania | United States | 39.99 | -75.31 | 275 | |
| Oakmont | city | Pennsylvania | United States | 40.52 | -79.84 | 885 | |
| Oakmont | city | Pennsylvania | United States | 40.25 | -76.69 | 830 | |
| Oakridge | city | Pennsylvania | United States | 39.94 | -76.71 | 830 | |
| Oakryn | city | Pennsylvania | United States | 39.78 | -76.14 | 393 | |
| Oaks | city | Pennsylvania | United States | 40.13 | -75.46 | 101 | |
| Oaktree Hollow | city | Pennsylvania | United States | 40.15 | -74.84 | 49 | |
| Oakville | city | Pennsylvania | United States | 40.13 | -77.46 | 830 | |
| Oakville | city | Pennsylvania | United States | 40.34 | -79.70 | 1010 | |
| Oakwood | city | Pennsylvania | United States | 41.01 | -80.38 | 1030 | |
| Oakwood Farms | city | Pennsylvania | United States | 40.17 | -75.60 | 298 | |
| Oakwood Park | city | Pennsylvania | United States | 40.24 | -76.96 | 396 | |
| Oakwood at Plymouth | city | Pennsylvania | United States | 40.11 | -75.30 | 114 | |
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