| County | Births 2003-6 | Births 2007-10 | Frack wells 2011 | Water wells | Violations 2011 |
| North East Group | |||||
| Susquehanna | 1658 | 1653 | 1079 | 5463 | 795 |
| Bradford | 2962 | 2910 | 1097 | 7527 | 765 |
| Wyoming | 1243 | 1236 | 228 | 2998 | 142 |
| Lycoming | 5411 | 5029 | 832 | 6548 | 636 |
| Tioga | 1662 | 1765 | 661 | 4611 | 507 |
| All N. East | 12,936 | 12,593 | 3897 | 27,147 | 2845 |
| South West Group | |||||
| Washington | 8250 | 8170 | 1146 | 5052 | 153 |
| Westmoreland | 13505 | 13261 | 251 | 7302 | - |
| Greene | 1664 | 1547 | 870 | 2397 | 111 |
| Fayette | 5761 | 5474 | 257 | 1604 | - |
| Butler | 8194 | 7556 | 321 | 11,685 | - |
| All S. West | 37,404 | 36,008 | 2845 | 28,040 | 264 |
| All 10 fracked counties | |||||
| All | 50,340 | 48,601 | 6742 | 55187 | 3109 |
| State of Pennsylvania | |||||
| Pennsylvania | 583,418 | 587,098 | - | - | - |