Click here for County-wide Comparisons & Statistics or click on the map below to find out about your local water system:
9% of the water systems in the state are exposing 52% of Pennsylvania residents to fluoride
52% of Pennsylvanians (5.48 million people) have fluoride in their drinking water. Twenty-four percent of these people (2.5 million) are exposed through drinking Philadelphia or Pittsburgh water. Pennsylvania has many small water systems throughout the state, with 603 serving under 100 people. However, these are largely unfluoridated. Of the 2122 water systems in the state, only 193 (9%) are fluoridated. These are primarily the larger water systems in the cities and suburban areas.
Sixteen Pennsylvania counties are totally unfluoridated: Adams, Cameron, Columbia, Forest, Fulton, Juniata, Lackawanna, Montour, Perry, Pike, Potter, Sullivan, Union, Warren, Wayne, & Wyoming.
The data on this website represents Fluoridation status as of May 2005.
Top 10 counties in terms of percentage of their population being fluoridated:
Philadelphia 100.0% Delaware 99.7% Allegheny 93.4% Mifflin 93.0% Lebanon 87.1% Greene 86.3% Elk 83.1% Northampton 82.0% Clinton 78.8% Cumberland 78.5% | Top 10 counties in terms of total fluoridated population:
Philadelphia 1,600,000 Allegheny 1,389,827 Northampton 234,288 Berks 158,553 Lancaster 151,985 Cumberland 147,253 Bucks 142,800 Lehigh 139,581 Delaware 131,070 Chester 108,742 |
| # of Water Systems | Population | |||||||
|---|---|---|---|---|---|---|---|---|
| County | # Fl | # Non-Fl | Total | Fl | Non-Fl | Total | % Fl | % Non-Fl |
| Adams | 0 | 39 | 39 | 0 | 40,709 | 40,709 | 0.0% | 100% |
| Allegheny | 30 | 11 | 41 | 1,389,827 | 97,845 | 1,487,672 | 93.4% | 7% |
| Armstrong | 4 | 19 | 23 | 17,610 | 25,371 | 42,981 | 41.0% | 59% |
| Beaver | 5 | 32 | 37 | 60,305 | 94,423 | 154,728 | 39.0% | 61% |
| Bedford | 3 | 22 | 25 | 5,477 | 10,745 | 16,222 | 33.8% | 66% |
| Berks | 11 | 64 | 75 | 158,553 | 133,076 | 291,629 | 54.4% | 46% |
| Blair | 1 | 29 | 30 | 6,000 | 90,373 | 96,373 | 6.2% | 94% |
| Bradford | 1 | 24 | 25 | 15,569 | 16,146 | 31,715 | 49.1% | 51% |
| Bucks | 4 | 78 | 82 | 142,800 | 397,602 | 540,402 | 26.4% | 74% |
| Butler | 3 | 58 | 61 | 27,164 | 73,038 | 100,202 | 27.1% | 73% |
| Cambria | 4 | 38 | 42 | 74,244 | 82,470 | 156,714 | 47.4% | 53% |
| Cameron | 0 | 2 | 2 | 0 | 3,918 | 3,918 | 0.0% | 100% |
| Carbon | 1 | 30 | 31 | 1,078 | 43,676 | 44,754 | 2.4% | 98% |
| Centre | 3 | 42 | 45 | 77,093 | 69,003 | 146,096 | 52.8% | 47% |
| Chester | 10 | 76 | 86 | 108,742 | 89,139 | 197,881 | 55.0% | 45% |
| Clarion | 1 | 14 | 15 | 16,600 | 11,313 | 27,913 | 59.5% | 41% |
| Clearfield | 2 | 20 | 22 | 23,672 | 28,803 | 52,475 | 45.1% | 55% |
| Clinton | 3 | 16 | 19 | 38,851 | 10,451 | 49,302 | 78.8% | 21% |
| Columbia | 0 | 18 | 18 | 0 | 44,811 | 44,811 | 0.0% | 100% |
| Crawford | 2 | 34 | 36 | 2,666 | 32,960 | 35,626 | 7.5% | 93% |
| Cumberland | 5 | 27 | 32 | 147,253 | 40,307 | 187,560 | 78.5% | 21% |
| Dauphin | 5 | 22 | 27 | 81,387 | 144,795 | 226,182 | 36.0% | 64% |
| Delaware | 2 | 5 | 7 | 131,070 | 393 | 131,463 | 99.7% | 0% |
| Elk | 3 | 5 | 8 | 28,850 | 5,864 | 34,714 | 83.1% | 17% |
| Erie | 3 | 48 | 51 | 14,700 | 234,753 | 249,453 | 5.9% | 94% |
| Fayette | 8 | 17 | 25 | 77,930 | 177,730 | 255,660 | 30.5% | 70% |
| Forest | 0 | 4 | 4 | 0 | 4,330 | 4,330 | 0.0% | 100% |
| Franklin | 5 | 25 | 30 | 64,318 | 20,515 | 84,833 | 75.8% | 24% |
| Fulton | 0 | 3 | 3 | 0 | 2,364 | 2,364 | 0.0% | 100% |
| Greene | 2 | 5 | 7 | 40,962 | 6,520 | 47,482 | 86.3% | 14% |
| Huntingdon | 1 | 20 | 21 | 12,121 | 16,773 | 28,894 | 41.9% | 58% |
| Indiana | 6 | 26 | 32 | 36,098 | 14,174 | 50,272 | 71.8% | 28% |
| Jefferson | 5 | 7 | 12 | 11,974 | 14,386 | 26,360 | 45.4% | 55% |
| Juniata | 0 | 13 | 13 | 0 | 9,003 | 9,003 | 0.0% | 100% |
| Lackawanna | 0 | 40 | 40 | 0 | 158,191 | 158,191 | 0.0% | 100% |
| Lancaster | 6 | 94 | 100 | 151,985 | 142,531 | 294,516 | 51.6% | 48% |
| Lawrence | 2 | 25 | 27 | 49,771 | 20,725 | 70,496 | 70.6% | 29% |
| Lebanon | 5 | 27 | 32 | 61,425 | 9,089 | 70,514 | 87.1% | 13% |
| Lehigh | 7 | 37 | 44 | 139,581 | 84,689 | 224,270 | 62.2% | 38% |
| Luzerne | 1 | 89 | 90 | 40,620 | 228,323 | 268,943 | 15.1% | 85% |
| Lycoming | 1 | 33 | 34 | 52,000 | 27,677 | 79,677 | 65.3% | 35% |
| Mc Kean | 2 | 15 | 17 | 7,725 | 23,633 | 31,358 | 24.6% | 75% |
| Mercer | 4 | 34 | 38 | 62,329 | 20,129 | 82,458 | 75.6% | 24% |
| Mifflin | 1 | 11 | 12 | 26,765 | 2,018 | 28,783 | 93.0% | 7% |
| Monroe | 1 | 81 | 82 | 3,926 | 72,118 | 76,044 | 5.2% | 95% |
| Montgomery | 1 | 41 | 42 | 36,000 | 1,168,544 | 1,204,544 | 3.0% | 97% |
| Montour | 0 | 6 | 6 | 0 | 7,542 | 7,542 | 0.0% | 100% |
| Northampton | 6 | 45 | 51 | 234,288 | 51,536 | 285,824 | 82.0% | 18% |
| Northumberland | 1 | 12 | 13 | 13,200 | 86,211 | 99,411 | 13.3% | 87% |
| Perry | 0 | 29 | 29 | 0 | 10,572 | 10,572 | 0.0% | 100% |
| Philadelphia | 1 | 0 | 1 | 1,600,000 | – | 1,600,000 | 100.0% | 0% |
| Pike | 0 | 54 | 54 | 0 | 41,531 | 41,531 | 0.0% | 100% |
| Potter | 0 | 9 | 9 | 0 | 8,354 | 8,354 | 0.0% | 100% |
| Schuylkill | 1 | 41 | 42 | 9,500 | 113,253 | 122,753 | 7.7% | 92% |
| Snyder | 3 | 16 | 19 | 8,956 | 12,762 | 21,718 | 41.2% | 59% |
| Somerset | 2 | 43 | 45 | 12,150 | 43,101 | 55,251 | 22.0% | 78% |
| Sullivan | 0 | 4 | 4 | 0 | 1,588 | 1,588 | 0.0% | 100% |
| Susquehanna | 1 | 24 | 25 | 1,982 | 10,326 | 12,308 | 16.1% | 84% |
| Tioga | 1 | 24 | 25 | 4,100 | 15,798 | 19,898 | 20.6% | 79% |
| Union | 0 | 5 | 5 | 0 | 5,498 | 5,498 | 0.0% | 100% |
| Venango | 3 | 21 | 24 | 14,169 | 26,109 | 40,278 | 35.2% | 65% |
| Warren | 0 | 16 | 16 | 0 | 23,356 | 23,356 | 0.0% | 100% |
| Washington | 3 | 12 | 15 | 11,430 | 37,580 | 49,010 | 23.3% | 77% |
| Wayne | 0 | 39 | 39 | 0 | 25,641 | 25,641 | 0.0% | 100% |
| Westmoreland | 1 | 20 | 21 | 47,800 | 197,768 | 245,568 | 19.5% | 81% |
| Wyoming | 0 | 27 | 27 | 0 | 7,664 | 7,664 | 0.0% | 100% |
| York | 6 | 62 | 68 | 77,107 | 216,206 | 293,313 | 26.3% | 74% |
| Totals | 193 | 1929 | 2122 | 5,479,723 | 4,987,842 | 10,467,565 | ||
| 9% | 91% | 52% | 48% | |||||
Download the raw data in Excel
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Last modified: 3 July 2006