| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Yardley | city | Pennsylvania | United States | 40.24556 | -74.84639 | 98 | 78291 |
| Yarnell | city | Pennsylvania | United States | 40.99778 | -77.81111 | 1204 | 4026 |
| Yatesboro | city | Pennsylvania | United States | 40.8 | -79.33444 | 1099 | 3085 |
| Yatesville | city | Pennsylvania | United States | 40.825 | -76.17167 | 1295 | 21209 |
| Yatesville | city | Pennsylvania | United States | 41.30333 | -75.78694 | 915 | 43373 |
| Yeadon | city | Pennsylvania | United States | 39.93889 | -75.25583 | 98 | 429762 |
| Yeagertown | city | Pennsylvania | United States | 40.64306 | -77.58083 | 600 | 18107 |
| Yeakle Mill | city | Pennsylvania | United States | 39.73389 | -78.03472 | 501 | 2473 |
| Yellow Creek | city | Pennsylvania | United States | 40.13028 | -78.33167 | 997 | 2623 |
| Yellow Hammer | city | Pennsylvania | United States | 41.6 | -79.30972 | 1587 | 504 |
| Yellow House | city | Pennsylvania | United States | 40.32306 | -75.755 | 298 | 16788 |
| Yellow Spring | city | Pennsylvania | United States | 40.51722 | -78.20694 | 1026 | 2742 |
| Yellowood | city | Pennsylvania | United States | 40.12861 | -74.86444 | 36 | 141700 |
| Yerkes | city | Pennsylvania | United States | 40.16972 | -75.46389 | 187 | 41170 |
| Yocum Estates | city | Pennsylvania | United States | 40.56028 | -75.14167 | 554 | 8908 |
| Yocumtown | city | Pennsylvania | United States | 40.15833 | -76.80417 | 498 | 18844 |
| Yoe | city | Pennsylvania | United States | 39.90889 | -76.63722 | 757 | 36610 |
| Yohoghany | city | Pennsylvania | United States | 40.28806 | -79.76361 | 925 | 30367 |
| Yordy | city | Pennsylvania | United States | 40.80833 | -76.63694 | 941 | 5314 |
| York | city | Pennsylvania | United States | 39.9625 | -76.72806 | 396 | 88197 |
| York Furnace | city | Pennsylvania | United States | 39.87222 | -76.38167 | 65 | 4759 |
| York Haven | city | Pennsylvania | United States | 40.11083 | -76.71611 | 400 | 15397 |
| York Run | city | Pennsylvania | United States | 39.8325 | -79.77972 | 1105 | 8625 |
| York Run Junction | city | Pennsylvania | United States | 39.81694 | -79.80306 | 1099 | 7177 |
| York Springs | city | Pennsylvania | United States | 40.00889 | -77.11583 | 633 | 6443 |
| Yorkana | city | Pennsylvania | United States | 39.97639 | -76.58444 | 551 | 23578 |
| Yorklyn | city | Pennsylvania | United States | 39.99222 | -76.64667 | 429 | 40813 |
| Yorkshire | city | Pennsylvania | United States | 39.96611 | -76.66111 | 656 | 40813 |
| Yorktown Homes subdivision | city | Pennsylvania | United States | 39.97611 | -76.74861 | 400 | 88197 |
| Yorktown subdivision | city | Pennsylvania | United States | 39.97333 | -75.15333 | 52 | 629310 |
| Yostville | city | Pennsylvania | United States | 41.29667 | -75.555 | 1699 | 3545 |
| Youngdale | city | Pennsylvania | United States | 41.15 | -77.365 | 616 | 5778 |
| Youngsburg | city | Pennsylvania | United States | 39.95 | -75.81972 | 469 | 25244 |
| Youngstown | city | Pennsylvania | United States | 39.93083 | -79.65806 | 1171 | 9971 |
| Youngstown | city | Pennsylvania | United States | 40.27972 | -79.36583 | 1131 | 18703 |
| Youngstown | city | Pennsylvania | United States | 39.99167 | -76.42667 | 364 | 14180 |
| Youngstown | city | Pennsylvania | United States | 41.00611 | -75.90694 | 1686 | 9764 |
| Youngsville | city | Pennsylvania | United States | 41.85222 | -79.31889 | 1282 | 3914 |
| Youngsville | city | Pennsylvania | United States | 40.78111 | -75.47722 | 800 | 10353 |
| Youngwood | city | Pennsylvania | United States | 40.24028 | -79.57694 | 1010 | 27524 |
| Yount | city | Pennsylvania | United States | 40.06194 | -78.47278 | 1292 | 4946 |
| Yukon | city | Pennsylvania | United States | 40.2125 | -79.68306 | 997 | 13124 |
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