D31/100

Pennsylvania Tap Water Quality Rankings 2026

429 cities · 11,157,027 people served

Top Contaminant Concerns

Copper (90th percentile)Lead (90th percentile)PFOSPFOAPFHxSPFNA

All Cities in Pennsylvania

#	City	Score	Population	Violations
1	Philadelphia	F (0)	1,600,000	66
2	Bryn Mawr	D (24)	1,052,998	1450
3	Pittsburgh	C (49)	800,771	405
4	Mcmurray	B (77)	686,000	9
5	Greensburg	D (33)	311,744	213
6	Harrisburg	C (49)	246,877	335
7	Erie	D (29)	233,549	425
8	York	D (23)	221,122	672
9	Allentown	C (56)	195,363	313
10	Scranton	B (75)	185,969	454
11	Reading	F (19)	174,056	623
12	New Castle	A (93)	161,867	21
13	Wilkes Barre	A (90)	159,289	36
14	Chester	A (96)	140,437	1
15	Mechanicsburg	B (64)	131,726	63
16	Wilkinsburg	F (0)	125,000	104
17	Bethlehem	C (48)	122,959	83
18	Lancaster	F (0)	120,000	74
19	Norristown	D (36)	97,085	1623
20	Easton	F (0)	96,867	69
21	North Wales	D (23)	95,384	632
22	Lansdale	F (0)	91,941	96
23	Johnstown	D (29)	79,669	234
24	State College	D (29)	78,000	246
25	Levittown	F (0)	63,007	143
26	Altoona	F (0)	62,500	269
27	Allison Park	B (70)	61,949	27
28	Sharon	B (60)	61,407	245
29	Lebanon	C (51)	60,343	88
30	Warrington	F (0)	59,838	1123
31	Chambersburg	F (0)	59,183	296
32	Hummelstown	C (43)	56,628	70
33	Shamokin	C (48)	56,120	141
34	Beaver Falls	F (17)	54,078	300
35	Milton	B (66)	54,074	117
36	East Stroudsburg	F (11)	51,800	829
37	Williamsport	C (53)	51,000	32
38	Spring City	C (58)	49,508	70
39	Monroeville	B (70)	48,500	11
40	New Kensington	B (66)	47,800	34
41	Hazleton	D (29)	47,308	215
42	Cranberry Twp	B (64)	42,000	29
43	Hanover	F (0)	40,900	116
44	Newtown	F (0)	40,300	342
45	Jefferson	C (56)	40,000	33
46	Northampton	A (92)	40,000	5
47	Warminster	F (0)	40,000	1022
48	Oakmont	A (85)	39,901	12
49	Carlisle	D (22)	39,682	220
50	Coatesville	F (8)	38,960	175
51	Pottstown	F (2)	38,907	109
52	Moon Township	D (27)	38,000	58
53	University Park	F (3)	37,000	94
54	Richboro	F (0)	36,750	747
55	Dunbar	F (0)	35,409	74
56	Aliquippa	F (0)	34,685	260
57	Uniontown	A (84)	34,550	25
58	Pottsville	F (5)	34,365	140
59	Yardley	D (35)	33,171	58
60	Clarks Summit	A (87)	32,771	11
61	Latrobe	F (0)	30,000	108
62	Bloomsburg	A (91)	29,382	6
63	Columbia	F (0)	29,248	303
64	Charleroi	F (0)	27,000	260
65	Milroy	F (0)	26,765	164
66	Horsham	F (0)	26,000	215
67	Ephrata	F (0)	24,500	94
68	Fairless Hills	F (8)	24,400	41
69	Philipsburg	C (51)	24,383	143
70	White Haven	D (34)	23,102	767
71	Dover	F (0)	22,997	705
72	Elizabethtown	F (15)	22,707	175
73	Tobyhanna	C (43)	21,660	126
74	Bushkill	B (65)	21,090	218
75	Landisville	B (63)	20,988	26
76	Lititz	F (0)	20,804	236
77	Sellersville	F (0)	20,770	601
78	Oakdale	D (32)	20,490	71
79	Waynesboro	F (12)	20,414	538
80	Blairsville	F (0)	20,023	321
81	Ambler	F (0)	20,000	599
82	Quakertown	F (0)	19,600	368
83	Saint Marys	F (0)	19,588	151
84	Ambridge	F (0)	19,500	105
85	Meadville	B (60)	18,839	54
86	Bradford	F (0)	18,500	181
87	Natrona Heights	C (42)	18,061	74
88	Bellefonte	F (0)	18,000	681
89	Shippensburg	F (0)	17,800	164
90	Doylestown	F (0)	17,355	189
91	Phoenixville	F (0)	16,599	146
92	Warren	B (75)	16,399	31
93	Southampton	F (0)	16,000	256
94	Huntingdon	F (0)	15,976	203
95	Red Lion	F (0)	15,882	114
96	Slippery Rock	C (41)	15,778	52
97	Sayre	F (7)	15,569	66
98	Mount Joy	F (0)	15,261	129
99	Kutztown	D (26)	15,250	106
100	Gettysburg	F (0)	15,155	832
101	Belle Vernon	F (7)	15,100	245
102	South Heights	C (50)	15,000	35
103	Jamison	F (0)	14,699	122
104	Clearfield	D (35)	14,000	50
105	Emmaus	F (0)	14,000	120
106	Beaver	D (35)	13,719	207
107	Morrisville	F (0)	13,342	372
108	Whitehall	F (0)	13,063	71
109	St Thomas	F (0)	12,589	111
110	Downingtown	F (19)	12,568	180
111	Grove City	C (55)	12,553	115
112	Dallastown	D (32)	12,300	53
113	Boiling Springs	F (0)	11,695	173
114	Indiana	F (0)	11,570	162
115	Somerset	D (27)	11,483	370
116	Clinton	D (38)	11,460	46
117	Oil City	C (59)	11,443	62
118	Sunbury	F (0)	11,043	215
119	Franklin	C (59)	11,017	46
120	Greenville	F (0)	10,970	276
121	Mars	D (23)	10,656	213
122	Denver	F (15)	10,596	381
123	North East	F (0)	10,449	326
124	East Greenville	D (23)	10,200	675
125	Gibsonia	A (91)	10,190	6
126	Fredericktown	F (0)	10,100	291
127	Lock Haven	D (22)	10,000	58
128	Ford City	C (45)	9,735	91
129	Mill Hall	F (0)	9,700	235
130	Manheim	F (0)	9,669	189
131	Dubois	D (35)	9,622	94
132	Middletown	F (0)	9,600	120
133	Myerstown	F (0)	9,500	125
134	Windber	C (47)	9,463	53
135	Newmanstown	F (13)	9,405	197
136	Fairview	D (25)	9,320	234
137	Honesdale	C (40)	9,304	130
138	Center Valley	D (29)	9,300	146
139	Lansford	C (57)	9,300	20
140	Lehighton	F (0)	9,000	101
141	Sewickley	C (47)	9,000	84
142	Buckingham	C (50)	8,910	75
143	Hollidaysburg	F (2)	8,523	35
144	Dillsburg	F (0)	8,506	87
145	Ebensburg	F (0)	8,500	264
146	Wyomissing	A (86)	8,500	11
147	Trappe	F (0)	8,470	177
148	Houtzdale	F (15)	8,410	41
149	Lords Valley	F (0)	8,321	71
150	Wellsboro	F (0)	8,225	197
151	Adrian	F (0)	8,000	107
152	Boyertown	F (0)	8,000	112
153	Tamaqua	F (8)	8,000	64
154	Millersville	F (0)	7,950	263
155	Mcmurry	B (69)	7,844	16
156	Corry	F (0)	7,800	149
157	Davidsville	F (0)	7,800	202
158	Edinboro	F (0)	7,800	205
159	Leetsdale	B (79)	7,781	13
160	Leola	F (0)	7,734	99
161	Telford	F (0)	7,700	72
162	Wernersville	D (36)	7,654	52
163	West Grove	D (22)	7,643	265
164	Blandon	F (0)	7,505	120
165	Littlestown	F (0)	7,300	177
166	Minersville	F (0)	7,275	128
167	Mansfield	F (0)	7,100	578
168	New Philadelphia	B (61)	7,100	32
169	Indian Head	F (0)	7,000	716
170	Palmerton	F (0)	7,000	92
171	Towanda	D (36)	6,763	316
172	Mcadoo	F (0)	6,700	86
173	Bedford	F (7)	6,697	149
174	Harmony	F (0)	6,669	162
175	Jersey Shore	F (0)	6,600	251
176	Catasauqua	D (38)	6,598	51
177	Derry	F (0)	6,500	140
178	Monaca	F (0)	6,500	132
179	Portage	F (0)	6,500	266
180	Tyrone	C (56)	6,500	32
181	Ridgway	D (27)	6,463	106
182	Kennett Square	F (0)	6,328	254
183	Brookville	F (0)	6,220	87
184	East Petersburg	F (0)	6,215	58
185	Titusville	C (42)	6,146	46
186	Schuylkill Haven	D (30)	6,000	51
187	Lake Ariel	F (0)	5,975	1274
188	Sarver	F (0)	5,849	155
189	Albion	F (0)	5,842	107
190	Coraopolis	C (58)	5,804	27
191	Mount Union	F (0)	5,801	504
192	Hellertown	F (0)	5,800	128
193	Cresson	D (24)	5,700	234
194	Pipersville	D (28)	5,593	278
195	Mahanoy City	D (30)	5,584	63
196	Selinsgrove	F (0)	5,584	202
197	Duquesne	F (6)	5,565	58
198	Greencastle	F (0)	5,500	106
199	New Holland	F (0)	5,500	112
200	Birdsboro	F (0)	5,353	120
201	Tunkhannock	F (5)	5,349	79
202	Oxford	F (0)	5,280	137
203	Stewartstown	F (0)	5,206	188
204	Schwenksville	D (27)	5,200	53
205	Jim Thorpe	F (8)	5,127	128
206	Cheswick	D (22)	5,061	153
207	Sharpsville	F (0)	5,029	111
208	Danville	F (0)	4,992	122
209	Hamburg	F (0)	4,990	102
210	Montoursville	F (2)	4,983	67
211	East Berlin	F (18)	4,971	210
212	Muncy	D (26)	4,950	146
213	Tarentum	F (14)	4,927	67
214	Homer City	C (50)	4,920	47
215	Duncansville	C (57)	4,900	63
216	Shrewsbury	F (0)	4,727	227
217	Industry	D (20)	4,615	144
218	Freeland	F (0)	4,610	137
219	Millersburg	F (3)	4,600	81
220	Curwensville	F (0)	4,500	176
221	New Wilmington	A (87)	4,500	10
222	Northern Cambria	F (0)	4,500	148
223	Seneca	C (54)	4,500	43
224	Spinnerstown	D (24)	4,497	76
225	New Freedom	F (4)	4,464	68
226	Mifflintown	F (0)	4,450	109
227	Slatington	D (37)	4,450	55
228	Brockway	F (0)	4,384	351
229	Brownstown	F (0)	4,327	48
230	West Reading	A (83)	4,300	13
231	Rochester	D (38)	4,276	31
232	Morgantown	F (0)	4,245	152
233	Mineral Point	F (0)	4,236	95
234	Fleetwood	F (0)	4,218	130
235	Akron	C (52)	4,200	33
236	Ashland	F (0)	4,200	86
237	Dilliner	F (0)	4,200	264
238	Zelienople	F (0)	4,123	159
239	Wrightsville	F (0)	4,076	98
240	New Oxford	F (0)	3,963	254
241	Baden	F (0)	3,948	83
242	Valley View	C (50)	3,870	35
243	Fairchance	F (0)	3,856	109
244	Irvona	D (24)	3,855	221
245	Masontown	F (0)	3,841	203
246	Point Marion	F (0)	3,805	394
247	Petrolia	A (82)	3,800	10
248	Brackenridge	F (7)	3,700	58
249	Morrisdale	F (0)	3,700	184
250	Mifflinburg	F (0)	3,690	211
251	Connellsville	F (0)	3,630	62
252	Camp Hill	F (0)	3,500	99
253	Snow Shoe	C (41)	3,456	55
254	Springdale	F (0)	3,405	117
255	Girard	F (0)	3,301	255
256	Emporium	F (0)	3,300	282
257	Ligonier	F (0)	3,293	215
258	Mt Holly Springs	D (38)	3,261	51
259	Mingoville	F (0)	3,250	187
260	East Earl	D (30)	3,241	98
261	Central City	C (40)	3,230	132
262	Conyngham	F (0)	3,230	496
263	Lykens	F (0)	3,220	196
264	Flinton	F (2)	3,200	79
265	Newport	F (0)	3,200	720
266	Roaring Spring	B (60)	3,182	37
267	Coudersport	F (0)	3,166	385
268	Bellwood	C (41)	3,162	44
269	Martinsburg	B (60)	3,160	21
270	Nanty Glo	F (0)	3,152	147
271	New Bethlehem	F (0)	3,150	127
272	Quarryville	F (0)	3,150	88
273	Tower City	F (0)	3,150	142
274	Gallitzin	F (0)	3,130	100
275	Annville	A (80)	3,100	13
276	Midland	F (0)	3,100	284
277	Nicholson	F (0)	3,100	174
278	Seven Fields	C (42)	3,100	31
279	Strasburg	F (0)	3,100	270
280	Perkasie	D (21)	3,042	76
281	Macungie	A (84)	3,039	5
282	Champion	D (20)	3,000	61
283	Orwigsburg	B (74)	3,000	19
284	Walnutport	F (0)	3,000	180
285	Union City	F (0)	2,952	207
286	Lake City	F (16)	2,935	77
287	Reynoldsville	C (44)	2,908	49
288	Boswell	F (0)	2,900	86
289	Dallas	F (0)	2,900	183
290	Matamoras	F (0)	2,900	164
291	Honey Brook	F (0)	2,892	115
292	Summit Hill	C (59)	2,890	26
293	Nesquehoning	F (0)	2,850	156
294	Hughesville	F (0)	2,800	282
295	Markleysburg	F (0)	2,800	123
296	Milesburg	F (0)	2,750	101
297	Youngstown	B (69)	2,730	31
298	Pine Grove	C (54)	2,711	23
299	Elizabethville	F (0)	2,700	113
300	Montgomery	F (0)	2,700	144
301	Bath	B (70)	2,680	27
302	Elkland	F (0)	2,660	558
303	Weatherly	F (0)	2,612	425
304	Renovo	F (0)	2,610	386
305	Bentleyville	F (6)	2,600	74
306	Port Allegany	F (0)	2,591	461
307	Coopersburg	C (46)	2,570	51
308	Meyersdale	F (0)	2,566	68
309	Biglerville	F (15)	2,501	78
310	Auburn	F (0)	2,500	128
311	Claysburg	F (0)	2,500	90
312	Berlin	B (67)	2,468	17
313	Reinholds	F (2)	2,430	87
314	Milford	F (16)	2,420	65
315	Johnsonburg	F (0)	2,413	367
316	Smethport	F (0)	2,400	151
317	Williamstown	F (0)	2,390	118
318	Cambridge Springs	F (8)	2,363	84
319	Mercersburg	F (0)	2,350	202
320	Halifax	F (0)	2,278	109
321	Mercer	C (56)	2,227	37
322	Oley	D (38)	2,204	51
323	Dublin	F (0)	2,200	134
324	Leesport	D (33)	2,200	40
325	Conway	F (0)	2,176	51
326	Fairfield	D (34)	2,150	63
327	Shoemakersville	F (16)	2,150	61
328	Bally	F (10)	2,146	87
329	Alburtis	B (74)	2,117	23
330	Hastings	C (57)	2,100	40
331	Loretto	B (75)	2,072	17
332	Newville	D (28)	2,070	61
333	Topton	F (0)	2,069	105
334	Canton	F (0)	2,050	145
335	Vandergrift	B (77)	2,049	20
336	Everett	B (69)	2,048	28
337	Creighton	D (32)	2,000	40
338	Duncannon	F (0)	2,000	340
339	Glen Rock	F (0)	2,000	155
340	Kittanning	B (70)	2,000	27
341	Mc Connellsburg	F (0)	2,000	951
342	Evans City	F (0)	1,990	261
343	Youngsville	F (0)	1,957	159
344	Centre Hall	C (42)	1,900	46
345	Elderton	C (46)	1,875	47
346	Rimersburg	F (16)	1,873	76
347	Patton	F (0)	1,805	166
348	Adamstown	F (0)	1,800	112
349	Beech Creek	A (85)	1,800	12
350	Williamsburg	F (0)	1,800	104
351	Glasgow	F (4)	1,746	65
352	Loysburg	F (0)	1,724	93
353	Braddock	C (57)	1,708	19
354	Mont Alto	F (0)	1,705	252
355	Clymer	F (15)	1,700	73
356	Frenchville	C (46)	1,700	38
357	Richland	C (40)	1,700	44
358	Shamokin Dam	F (0)	1,700	177
359	Waterford	F (0)	1,700	176
360	Leechburg	C (58)	1,680	34
361	Saxton	F (0)	1,675	253
362	Blossburg	F (0)	1,650	144
363	Twin Rocks	F (0)	1,650	46
364	Catawissa	C (43)	1,644	54
365	Elverson	F (0)	1,641	107
366	Intercourse	A (90)	1,640	10
367	Jennerstown	F (0)	1,625	419
368	Harwick	C (52)	1,600	25
369	Linesville	C (50)	1,600	39
370	Middleburg	F (0)	1,600	232
371	Luthersburg	F (0)	1,570	224
372	Hawthorn	F (0)	1,500	162
373	Mount Morris	F (0)	1,500	39
374	Port Matilda	B (66)	1,500	31
375	Saegertown	F (0)	1,500	228
376	Sykesville	F (0)	1,500	88
377	Worthington	F (2)	1,500	91
378	Mc Connellstown	F (0)	1,450	138
379	Richlandtown	F (0)	1,450	324
380	Vanport	F (10)	1,450	87
381	Falls Creek	F (0)	1,440	199
382	Atglen	F (0)	1,406	93
383	Delta	F (12)	1,400	73
384	East Freedom	A (92)	1,400	8
385	Grampian	A (82)	1,400	11
386	Sipesville	F (0)	1,400	211
387	Lilly	F (0)	1,388	211
388	Knox	D (38)	1,380	59
389	Troy	F (0)	1,362	149
390	Benton	F (0)	1,333	119
391	Windsor	B (75)	1,332	22
392	Farmington	F (0)	1,300	278
393	Roulette	F (0)	1,300	910
394	Westfield	F (0)	1,300	280
395	New Hope	D (29)	1,295	63
396	Ellsworth	F (0)	1,250	174
397	Rockwood	F (11)	1,250	86
398	Shinglehouse	F (0)	1,250	203
399	Freeport	F (0)	1,230	86
400	Arendtsville	C (48)	1,200	45
401	Bainbridge	C (42)	1,200	51
402	East Bangor	F (17)	1,200	76
403	Fredericksburg	F (0)	1,200	122
404	Galeton	F (0)	1,200	369
405	Numine	C (46)	1,200	46
406	Orbisonia	F (13)	1,200	76
407	Royersford	F (0)	1,200	132
408	Springboro	D (22)	1,175	75
409	New Bloomfield	F (13)	1,170	67
410	Beach Lake	B (65)	1,150	28
411	Cochranton	D (39)	1,136	58
412	Weedville	F (0)	1,131	209
413	Avondale	F (0)	1,108	179
414	Mill Creek	F (0)	1,108	150
415	Bessemer	F (7)	1,100	82
416	Chicora	D (35)	1,100	58
417	Christiana	F (0)	1,100	100
418	Greentown	F (0)	1,100	745
419	Portland	F (0)	1,100	84
420	Sandy Lake	C (44)	1,100	45
421	York Springs	C (52)	1,095	45
422	Royalton	B (68)	1,083	16
423	Sheffield	D (25)	1,075	60
424	Polk	F (0)	1,058	267
425	East Brady	D (36)	1,040	32
426	Tidioute	F (0)	1,040	91
427	Bendersville	F (0)	1,039	91
428	Bernville	F (11)	1,010	81
429	Howard	F (0)	1,001	102