| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Ice Mine | city | Pennsylvania | United States | 41.75278 | -77.95222 | 1899 | 1989 |
| Icedale | city | Pennsylvania | United States | 40.06694 | -75.82861 | 652 | 17193 |
| Ickesburg | city | Pennsylvania | United States | 40.45583 | -77.35194 | 698 | 2126 |
| Idaho | city | Pennsylvania | United States | 40.65361 | -79.34722 | 1171 | 2821 |
| Idamar | city | Pennsylvania | United States | 40.72889 | -79.00306 | 1482 | 3265 |
| Idaville | city | Pennsylvania | United States | 40.01472 | -77.20306 | 797 | 4783 |
| Ideal | city | Pennsylvania | United States | 40.63306 | -79.06833 | 1332 | 4938 |
| Idetown | city | Pennsylvania | United States | 41.34694 | -76.02556 | 1391 | 10935 |
| Idlepark | city | Pennsylvania | United States | 40.26056 | -79.27972 | 1184 | 5870 |
| Idlewood | city | Pennsylvania | United States | 40.42833 | -80.075 | 912 | 180888 |
| Idlewood | city | Pennsylvania | United States | 40.16444 | -74.94806 | 200 | 135844 |
| Idywyld | city | Pennsylvania | United States | 39.99056 | -76.68667 | 469 | 78140 |
| Imler | city | Pennsylvania | United States | 40.20667 | -78.52306 | 1253 | 2615 |
| Imlertown | city | Pennsylvania | United States | 40.09222 | -78.46972 | 1171 | 3154 |
| Imperial | city | Pennsylvania | United States | 40.44944 | -80.24472 | 1095 | 14936 |
| Independence | city | Pennsylvania | United States | 40.25389 | -80.50778 | 1197 | 6539 |
| Independence | city | Pennsylvania | United States | 40.57222 | -80.30944 | 797 | 19022 |
| Independence | city | Pennsylvania | United States | 40.68083 | -76.89528 | 390 | 3358 |
| India | city | Pennsylvania | United States | 40.37639 | -79.11972 | 1099 | 2902 |
| Indian Creek | city | Pennsylvania | United States | 39.96889 | -79.51167 | 1230 | 7004 |
| Indian Creek | city | Pennsylvania | United States | 40.14472 | -74.86611 | 68 | 141700 |
| Indian Crossing | city | Pennsylvania | United States | 41.97361 | -78.405 | 1499 | 2638 |
| Indian Head | city | Pennsylvania | United States | 41.89944 | -79.99528 | 1190 | 3440 |
| Indian Head | city | Pennsylvania | United States | 40.02472 | -79.39528 | 1564 | 2838 |
| Indian Hills | city | Pennsylvania | United States | 40.85333 | -75.68889 | 649 | 12384 |
| Indian Lake | city | Pennsylvania | United States | 40.04667 | -78.8525 | 2329 | 2401 |
| Indian Mountain Lake | city | Pennsylvania | United States | 41.00306 | -75.50861 | 1771 | 4143 |
| Indian Mountain Lake | city | Pennsylvania | United States | 41.00472 | -75.49972 | 1804 | 5524 |
| Indian Orchard | city | Pennsylvania | United States | 41.54722 | -75.21389 | 997 | 8719 |
| Indian Point | city | Pennsylvania | United States | 41.28556 | -74.83472 | 400 | 3648 |
| Indian Run | city | Pennsylvania | United States | 41.15111 | -80.26444 | 1197 | 5331 |
| Indian Springs Estates | city | Pennsylvania | United States | 40.60417 | -79.18167 | 1299 | 26543 |
| Indiana | city | Pennsylvania | United States | 40.62139 | -79.15278 | 1295 | 28109 |
| Indianland | city | Pennsylvania | United States | 40.76111 | -75.55389 | 698 | 19005 |
| Indianola | city | Pennsylvania | United States | 40.56944 | -79.86389 | 905 | 32706 |
| Indiantown | city | Pennsylvania | United States | 40.00639 | -79.21806 | 2211 | 2044 |
| Indiantown | city | Pennsylvania | United States | 40.40972 | -76.58056 | 400 | 5794 |
| Industry | city | Pennsylvania | United States | 40.64444 | -80.41639 | 754 | 11604 |
| Industry | city | Pennsylvania | United States | 40.26444 | -79.7925 | 800 | 30014 |
| Inez | city | Pennsylvania | United States | 41.72 | -78.02194 | 1919 | 1332 |
| Ingleby | city | Pennsylvania | United States | 40.84722 | -77.42778 | 1161 | 1502 |
| Inglenook | city | Pennsylvania | United States | 40.41306 | -76.98139 | 393 | 5077 |
| Ingleside | city | Pennsylvania | United States | 40.25917 | -78.89111 | 1502 | 42012 |
| Inglesmith | city | Pennsylvania | United States | 39.75139 | -78.38194 | 905 | 944 |
| Inglewood | city | Pennsylvania | United States | 40.24722 | -75.31333 | 298 | 68719 |
| Ingomar | city | Pennsylvania | United States | 40.58083 | -80.06111 | 1197 | 65254 |
| Ingram | city | Pennsylvania | United States | 40.44611 | -80.06778 | 977 | 180888 |
| Inkerman | city | Pennsylvania | United States | 41.29889 | -75.81306 | 800 | 54512 |
| Instanter | city | Pennsylvania | United States | 41.60278 | -78.5575 | 1597 | 577 |
| Intercourse | city | Pennsylvania | United States | 40.0375 | -76.10528 | 396 | 11911 |
| Inwood | city | Pennsylvania | United States | 40.47556 | -76.52111 | 498 | 4242 |
| Iola | city | Pennsylvania | United States | 41.13639 | -76.53194 | 692 | 2764 |
| Iona | city | Pennsylvania | United States | 40.32111 | -76.37139 | 515 | 17810 |
| Iowa | city | Pennsylvania | United States | 41.12389 | -79.00778 | 1295 | 3146 |
| Irish Meeting House | city | Pennsylvania | United States | 40.39444 | -75.20556 | 462 | 11394 |
| Irishtown | city | Pennsylvania | United States | 41.21333 | -80.125 | 1276 | 4986 |
| Irishtown | city | Pennsylvania | United States | 39.94694 | -79.6025 | 1597 | 6326 |
| Irishtown | city | Pennsylvania | United States | 41.81639 | -78.67139 | 2099 | 1252 |
| Irishtown | city | Pennsylvania | United States | 40.97611 | -78.66611 | 1797 | 2360 |
| Irishtown | city | Pennsylvania | United States | 39.83806 | -77.04944 | 587 | 13777 |
| Irishtown | city | Pennsylvania | United States | 40.02861 | -76.15917 | 396 | 14446 |
| Iron Bridge | city | Pennsylvania | United States | 40.11639 | -79.55139 | 1099 | 18768 |
| Iron Bridge Estates | city | Pennsylvania | United States | 40.20667 | -75.44167 | 206 | 37325 |
| Iron City | city | Pennsylvania | United States | 41.25944 | -79.4975 | 1387 | 2878 |
| Iron City | city | Pennsylvania | United States | 41.55806 | -79.02667 | 1715 | 448 |
| Iron Hill historical | city | Pennsylvania | United States | 40.60833 | -75.34333 | 298 | 92426 |
| Iron Ridge | city | Pennsylvania | United States | 39.84056 | -76.91194 | 633 | 12057 |
| Iron Springs | city | Pennsylvania | United States | 39.77556 | -77.39694 | 980 | 3447 |
| Ironsides | city | Pennsylvania | United States | 40.13389 | -75.54139 | 180 | 45767 |
| Ironstone | city | Pennsylvania | United States | 40.30111 | -75.67361 | 295 | 26329 |
| Ironton | city | Pennsylvania | United States | 40.67 | -75.56806 | 403 | 25036 |
| Ironville | city | Pennsylvania | United States | 40.6575 | -78.21667 | 974 | 7329 |
| Ironville | city | Pennsylvania | United States | 40.05639 | -76.46306 | 600 | 33418 |
| Irvine | city | Pennsylvania | United States | 41.83917 | -79.26861 | 1197 | 4423 |
| Irving | city | Pennsylvania | United States | 40.53278 | -76.43917 | 498 | 5791 |
| Irvona | city | Pennsylvania | United States | 40.77444 | -78.55361 | 1476 | 2677 |
| Irwin | city | Pennsylvania | United States | 40.32444 | -79.70139 | 994 | 40117 |
| Isabella | city | Pennsylvania | United States | 39.94389 | -79.93639 | 1092 | 8620 |
| Isabella | city | Pennsylvania | United States | 40.12083 | -75.83833 | 662 | 11277 |
| Iselin | city | Pennsylvania | United States | 40.55944 | -79.38667 | 1197 | 3395 |
| Iselin Heights | city | Pennsylvania | United States | 41.12722 | -78.78528 | 1564 | 13947 |
| Island Plain | city | Pennsylvania | United States | 41.95472 | -75.70528 | 898 | 3824 |
| Ithan | city | Pennsylvania | United States | 40.03 | -75.36667 | 354 | 110233 |
| Iva | city | Pennsylvania | United States | 39.96306 | -76.13583 | 508 | 13122 |
| Ivarea | city | Pennsylvania | United States | 41.90361 | -80.26611 | 1197 | 3202 |
| Ivory Avenue | city | Pennsylvania | United States | 40.49472 | -80.01167 | 1164 | 195851 |
| Ivy Hill | city | Pennsylvania | United States | 40.07889 | -75.17833 | 308 | 338015 |
| Ivy Mills | city | Pennsylvania | United States | 39.89722 | -75.495 | 298 | 39267 |
| Ivy Rock | city | Pennsylvania | United States | 40.09389 | -75.31639 | 98 | 112164 |
| Ivyland | city | Pennsylvania | United States | 40.20778 | -75.07306 | 298 | 101440 |
| Ivywood | city | Pennsylvania | United States | 40.71083 | -79.85194 | 1197 | 9286 |
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