2026 Rankings

Worst ZIP Codes for Lead in Water in Pennsylvania — ...

Last updated: June 4, 2026

849 ZIP codes ranked by Lead (mg/L) #1: ZIP 17756 (Muncy, PA) — 890.0 ppb
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 849 ZIP codes with data in Pennsylvania, these are the highest-ranked areas for lead (mg/l). See also: National Worst ZIP Codes for Lead in Water | All Pennsylvania Rankings

Statistic Value
ZIP codes ranked 849
Highest value 890.0 ppb
Median value 2.0 ppb
State Pennsylvania

Top 100 Worst ZIP Codes

Rank ZIP Code City State Lead (mg/L) Safety Score
1 17756 Muncy PA 890.0 ppb 16/100
2 18612 Dallas PA 672.3 ppb 26/100
3 18690 Dallas PA 672.3 ppb 15/100
4 16316 Conneaut Lake PA 640.0 ppb 52/100
5 16927 Harrison Valley PA 356.5 ppb 56/100
6 17020 Duncannon PA 301.0 ppb 26/100
7 19550 Rehrersburg PA 256.0 ppb 31/100
8 18628 Lopez PA 222.6 ppb 32/100
9 18240 Nesquehoning PA 135.3 ppb 43/100
10 16025 Chicora PA 128.2 ppb 39/100
11 18372 Tannersville PA 122.8 ppb 33/100
12 18940 Newtown PA 100.0 ppb 35/100
13 17509 Christiana PA 98.0 ppb 38/100
14 18013 Bangor PA 97.7 ppb 28/100
15 18448 Olyphant PA 83.3 ppb 16/100
16 18360 Stroudsburg PA 81.0 ppb 32/100
17 18445 Newfoundland PA 78.0 ppb 56/100
18 17859 Orangeville PA 74.3 ppb 26/100
19 17771 Trout Run PA 65.8 ppb 31/100
20 15544 Gray PA 56.7 ppb 40/100
21 17963 Pine Grove PA 53.1 ppb 29/100
22 17047 Loysville PA 48.5 ppb 43/100
23 17006 Blain PA 46.8 ppb 44/100
24 16442 Wattsburg PA 44.5 ppb 56/100
25 15849 Penfield PA 43.7 ppb 35/100
26 18603 Berwick PA 43.5 ppb 21/100
27 16828 Centre Hall PA 43.3 ppb 44/100
28 18801 Montrose PA 41.6 ppb 26/100
29 19083 Havertown PA 40.0 ppb 10/100
30 18088 Walnutport PA 37.5 ppb 36/100
31 17579 Strasburg PA 36.5 ppb 33/100
32 17815 Bloomsburg PA 35.4 ppb 43/100
33 17822 Danville PA 35.4 ppb 65/100
34 15552 Meyersdale PA 34.0 ppb 34/100
35 16262 Worthington PA 33.5 ppb 40/100
36 18630 Meshoppen PA 32.3 ppb 26/100
37 16374 Kennerdell PA 31.0 ppb 41/100
38 17776 Waterville PA 30.1 ppb 38/100
39 17737 Hughesville PA 29.6 ppb 26/100
40 19440 Hatfield PA 29.6 ppb 33/100
41 18030 Bowmanstown PA 29.1 ppb 38/100
42 19536 Lyon Station PA 27.6 ppb 32/100
43 19540 Mohnton PA 27.0 ppb 38/100
44 18847 Susquehanna PA 26.7 ppb 35/100
45 18357 Skytop PA 25.4 ppb 42/100
46 16746 Roulette PA 24.5 ppb 44/100
47 18426 Greentown PA 24.0 ppb 55/100
48 18708 Shavertown PA 22.8 ppb 38/100
49 15104 Braddock PA 22.6 ppb 34/100
50 17922 Auburn PA 22.5 ppb 39/100
51 16686 Tyrone PA 22.2 ppb 34/100
52 19505 Bechtelsville PA 21.6 ppb 43/100
53 19317 Chadds Ford PA 21.5 ppb 34/100
54 17310 Cashtown PA 21.1 ppb 42/100
55 18066 New Tripoli PA 21.0 ppb 38/100
56 15762 Nicktown PA 20.7 ppb 57/100
57 15030 Creighton PA 20.0 ppb 38/100
58 16682 Sproul PA 19.8 ppb 27/100
59 16049 Parker PA 19.8 ppb 15/100
60 17074 Newport PA 18.5 ppb 30/100
61 17519 East Earl PA 18.0 ppb 43/100
62 18349 Pocono Manor PA 18.0 ppb 26/100
63 15868 Weedville PA 17.2 ppb 50/100
64 17961 Orwigsburg PA 17.1 ppb 38/100
65 15960 Twin Rocks PA 17.0 ppb 49/100
66 18058 Kunkletown PA 16.9 ppb 38/100
67 18610 Blakeslee PA 16.9 ppb 40/100
68 18917 Dublin PA 16.8 ppb 33/100
69 18076 Red Hill PA 16.5 ppb 31/100
70 18651 Plymouth PA 16.3 ppb 31/100
71 15729 Commodore PA 16.0 ppb 36/100
72 16003 Butler PA 16.0 ppb 40/100
73 16882 Woodward PA 16.0 ppb 42/100
74 19362 Nottingham PA 16.0 ppb 37/100
75 19534 Lenhartsville PA 16.0 ppb 37/100
76 16947 Troy PA 15.8 ppb 26/100
77 17090 Shermans Dale PA 15.5 ppb 34/100
78 17555 Narvon PA 15.5 ppb 41/100
79 16732 Gifford PA 15.2 ppb 41/100
80 17253 Saltillo PA 15.1 ppb 40/100
81 17954 Minersville PA 14.0 ppb 38/100
82 19013 Chester PA 13.9 ppb 60/100
83 19014 Aston PA 13.9 ppb 45/100
84 19015 Brookhaven PA 13.9 ppb 35/100
85 19016 Chester PA 13.9 ppb 66/100
86 19028 Edgemont PA 13.9 ppb 53/100
87 19037 Glen Riddle Lima PA 13.9 ppb 53/100
88 19039 Gradyville PA 13.9 ppb 40/100
89 19060 Garnet Valley PA 13.9 ppb 45/100
90 19061 Marcus Hook PA 13.9 ppb 40/100
91 19063 Media PA 13.9 ppb 40/100
92 19065 Media PA 13.9 ppb 40/100
93 19086 Wallingford PA 13.9 ppb 45/100
94 19088 Wayne PA 13.9 ppb 40/100
95 19091 Media PA 13.9 ppb 40/100
96 19330 Cochranville PA 13.9 ppb 59/100
97 19339 Concordville PA 13.9 ppb 40/100
98 19350 Landenberg PA 13.9 ppb 45/100
99 19352 Lincoln University PA 13.9 ppb 53/100
100 19374 Toughkenamon PA 13.9 ppb 58/100

Methodology

Lead rankings are based on the 90th percentile lead testing value (PB90) reported by water systems under the Lead and Copper Rule. When CCR data is unavailable, EPA SDWIS lead sampling data is used. The EPA action level for lead is 15 ppb (0.015 mg/L). There is no safe level of lead exposure.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-06-04.

Frequently Asked Questions

What is a dangerous lead level in water?

The EPA action level is 15 parts per billion (ppb). The American Academy of Pediatrics recommends no more than 1 ppb for school drinking water. There is no safe level of lead exposure for children.

How is lead measured in water?

Water systems collect samples from homes with known lead service lines or lead solder. The 90th percentile value (PB90) means 90% of samples tested below that level. If PB90 exceeds 15 ppb, the system must take corrective action.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →

Related Rankings

Water Safety 2026 EPA violations and water quality scores Infrastructure 2026 Aging pipes and remediation burden Home Safety 2026 Combined safety score across all hazards
Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

Get safety alerts for Pennsylvania

Free updates when EPA data changes for this area. No spam.

Unsubscribe anytime. Privacy Policy.

Share This Page

X Facebook
Check your water filter options Free tool — no phone call required.