2026 Rankings

Lowest Home Safety Scores in Pennsylvania — 2026

Last updated: August 31, 2026

737 ZIP codes ranked by Safety Score #1: ZIP 15108 (Coraopolis, PA) - 27/100
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 737 ZIP codes with data in Pennsylvania, these are the lowest-ranked areas for safety score. See also: National Lowest Home Safety Scores in America | All Pennsylvania Rankings

Statistic Value
ZIP codes ranked 737
Lowest value 27/100
Median value 56/100
State Pennsylvania

100 Lowest-Ranked ZIP Codes

Rank ZIP Code City State Safety Score Safety Score
1 15108 Coraopolis PA 27/100 27/100
2 15009 Beaver PA 33/100 33/100
3 15059 Midland PA 33/100 33/100
4 15061 Monaca PA 33/100 33/100
5 15650 Latrobe PA 33/100 33/100
6 16823 Bellefonte PA 33/100 33/100
7 17013 Carlisle PA 33/100 33/100
8 17015 Carlisle PA 33/100 33/100
9 17340 Littlestown PA 33/100 33/100
10 17702 Williamsport PA 33/100 33/100
11 17754 Montoursville PA 33/100 33/100
12 18041 East Greenville PA 33/100 33/100
13 18049 Emmaus PA 33/100 33/100
14 18062 Macungie PA 33/100 33/100
15 18070 Palm PA 33/100 33/100
16 18073 Pennsburg PA 33/100 33/100
17 18076 Red Hill PA 33/100 33/100
18 18902 Doylestown PA 33/100 33/100
19 18914 Chalfont PA 33/100 33/100
20 18938 New Hope PA 33/100 33/100
21 18940 Newtown PA 33/100 33/100
22 18944 Perkasie PA 33/100 33/100
23 18951 Quakertown PA 33/100 33/100
24 18954 Richboro PA 33/100 33/100
25 18960 Sellersville PA 33/100 33/100
26 18966 Southampton PA 33/100 33/100
27 18974 Warminster PA 33/100 33/100
28 19002 Ambler PA 33/100 33/100
29 19006 Huntingdon Valley PA 33/100 33/100
30 19025 Dresher PA 33/100 33/100
31 19034 Fort Washington PA 33/100 33/100
32 19040 Hatboro PA 33/100 33/100
33 19044 Horsham PA 33/100 33/100
34 19053 Feasterville Trevose PA 33/100 33/100
35 19067 Morrisville PA 33/100 33/100
36 19090 Willow Grove PA 33/100 33/100
37 19317 Chadds Ford PA 33/100 33/100
38 19335 Downingtown PA 33/100 33/100
39 19344 Honey Brook PA 33/100 33/100
40 19348 Kennett Square PA 33/100 33/100
41 19380 West Chester PA 33/100 33/100
42 19382 West Chester PA 33/100 33/100
43 19383 West Chester PA 33/100 33/100
44 19403 Norristown PA 33/100 33/100
45 19422 Blue Bell PA 33/100 33/100
46 19426 Collegeville PA 33/100 33/100
47 19454 North Wales PA 33/100 33/100
48 19460 Phoenixville PA 33/100 33/100
49 17325 Gettysburg PA 34/100 34/100
50 17363 Stewartstown PA 34/100 34/100
51 19020 Bensalem PA 34/100 34/100
52 15071 Oakdale PA 35/100 35/100
53 17545 Manheim PA 35/100 35/100
54 18925 Furlong PA 35/100 35/100
55 19462 Plymouth Meeting PA 35/100 35/100
56 19605 Reading PA 35/100 35/100
57 18901 Doylestown PA 36/100 36/100
58 18977 Washington Crossing PA 36/100 36/100
59 19031 Flourtown PA 36/100 36/100
60 17042 Lebanon PA 37/100 37/100
61 17543 Lititz PA 37/100 37/100
62 19518 Douglassville PA 37/100 37/100
63 17315 Dover PA 38/100 38/100
64 17361 Shrewsbury PA 38/100 38/100
65 18976 Warrington PA 38/100 38/100
66 19440 Hatfield PA 38/100 38/100
67 15052 Industry PA 39/100 39/100
68 15627 Derry PA 39/100 39/100
69 17522 Ephrata PA 39/100 39/100
70 18912 Buckingham PA 39/100 39/100
71 19342 Glen Mills PA 39/100 39/100
72 19390 West Grove PA 39/100 39/100
73 19401 Norristown PA 39/100 39/100
74 19405 Bridgeport PA 39/100 39/100
75 19406 King Of Prussia PA 39/100 39/100
76 19428 Conshohocken PA 39/100 39/100
77 19505 Bechtelsville PA 39/100 39/100
78 19604 Reading PA 39/100 39/100
79 15010 Beaver Falls PA 40/100 40/100
80 15101 Allison Park PA 40/100 40/100
81 19001 Abington PA 40/100 40/100
82 19003 Ardmore PA 40/100 40/100
83 19004 Bala Cynwyd PA 40/100 40/100
84 19008 Broomall PA 40/100 40/100
85 19009 Bryn Athyn PA 40/100 40/100
86 19012 Cheltenham PA 40/100 40/100
87 19013 Chester PA 40/100 40/100
88 19014 Aston PA 40/100 40/100
89 19015 Brookhaven PA 40/100 40/100
90 19017 Chester Heights PA 40/100 40/100
91 19018 Clifton Heights PA 40/100 40/100
92 19022 Crum Lynne PA 40/100 40/100
93 19023 Darby PA 40/100 40/100
94 19026 Drexel Hill PA 40/100 40/100
95 19027 Elkins Park PA 40/100 40/100
96 19029 Essington PA 40/100 40/100
97 19032 Folcroft PA 40/100 40/100
98 19033 Folsom PA 40/100 40/100
99 19035 Gladwyne PA 40/100 40/100
100 19036 Glenolden PA 40/100 40/100

Methodology

Home Safety Score model 4.0.0 combines SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, county-level EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

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: 2026-08-31.

Frequently Asked Questions

What does a low Home Safety Score mean?

A score below 40 (grade F) means the four measured model components produced a low combined result. It does not claim that every property hazard was measured.

Can a ZIP code score change?

Yes. A later accepted release can change the score when any measured component changes. Every release identifies its score model and source periods.

Explore More Rankings

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

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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.

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