STATE REPORT PA 421 HEALTH VIOLATIONS

Pennsylvania Home Safety Profiles by ZIP

2184 ZIP codes · 758 water systems · IPC plumbing code · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData, NWS, State plumbing boards, Rewiring America

ZipCheckup tracks drinking-water and home-safety data for 2,184 ZIP codes across Pennsylvania, covering 758 public water systems that serve about 10,579,585 people. 1,180 ZIP codes carry at least one EPA violation on record.

2184
ZIP Codes
758
Water Systems
1180
ZIPs with Violations
IPC
Plumbing Code
C · 57
Avg Safety Score
60
ZIPs Exceeding Lead Limit
73%
High Radon Risk (Zone 1)
#50
of 50 States
18%
ZIPs Rated A or B
90%
ZIPs with Violations
C
Pennsylvania average: 57/100 - ranked #50 of 50 states. 16 points below the national average (73). 90% of ZIP codes have recorded violations.

Recent compliance reports place Pennsylvania below the national average for public water safety.

Score Distribution

How Pennsylvania's 2184 ZIP codes are distributed across safety grades.

0
A
134
B
245
C
280
D
78
F
85-10070-8455-6940-540-39

Home Safety Scores by State

Loading map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

Model 4.0.0 inputs: EPA SDWIS, UCMR5 PFAS, EPA radon zones, annual county AQI •

Top 10 Safest ZIP Codes in Pennsylvania

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 15019 BulgerWashington 83 B
2 15021 BurgettstownWashington 83 B
3 15054 LangelothWashington 83 B
4 15060 MidwayWashington 83 B
5 15067 New EagleWashington 83 B
6 15312 AvellaWashington 83 B
7 15317 CanonsburgWashington 83 B
8 15321 CecilWashington 83 B
9 15323 ClaysvilleWashington 83 B
10 15332 FinleyvilleWashington 83 B

10 Lowest-Scoring ZIP Codes in Pennsylvania

#ZIP CodeCityCountyScoreGradeViolations
1 15108 CoraopolisAllegheny 27 F 41
2 19460 PhoenixvilleMontgomery 33 F 983
3 19454 North WalesMontgomery 33 F 141
4 19426 CollegevilleMontgomery 33 F 881
5 19422 Blue BellMontgomery 33 F 55
6 19403 NorristownMontgomery 33 F 941
7 19383 West ChesterChester 33 F 60
8 19382 West ChesterChester 33 F 70
9 19380 West ChesterChester 33 F 70
10 19348 Kennett SquareChester 33 F 209

County Rankings

Water quality breakdown by county. 67 counties with data in Pennsylvania.

Loading county map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

County-level aggregation of measured ZIP Home Safety Scores • EPA SDWIS, UCMR 5 PFAS, EPA radon zones, EPA AirData

CountyAvg ScoreGradeZIPsBest ZIPWorst ZIP
42001 46 D 14 17344 (63) 17325 (34)
42003 52 D 148 15007 (58) 15108 (27)
42005 57 C 27 15682 (66) 16262 (50)
42007 51 D 22 15081 (66) 17340 (33)
42009 N/A N/A 24 N/A N/A
42011 51 D 51 19510 (65) 19605 (35)
42013 57 C 17 16665 (67) 16686 (50)
42015 58 C 26 18810 (66) 18854 (50)
42017 39 F 68 19021 (50) 19067 (33)
42019 N/A N/A 36 N/A N/A
42021 69 C 53 16640 (76) 16646 (67)
42023 N/A N/A 3 N/A N/A
42025 N/A N/A 16 N/A N/A
42027 54 D 30 16677 (67) 16823 (33)
42029 42 D 62 19365 (65) 19383 (33)
42031 N/A N/A 29 N/A N/A
42033 N/A N/A 49 N/A N/A
42035 N/A N/A 15 N/A N/A
42037 N/A N/A 13 N/A N/A
42039 N/A N/A 22 N/A N/A
42041 47 D 22 17241 (60) 17015 (33)
42043 57 C 43 17113 (66) 17061 (45)
42045 41 D 49 19060 (50) 19342 (39)
42047 71 B 15 15857 (80) 15853 (67)
42049 75 B 47 16410 (83) 16428 (67)
42051 73 B 63 15450 (83) 15717 (50)
42053 N/A N/A 6 N/A N/A
42055 52 D 32 17244 (62) 17268 (50)
42057 N/A N/A 11 N/A N/A
42059 73 B 23 15329 (80) 15370 (67)
42061 N/A N/A 27 N/A N/A
42063 57 C 43 15705 (67) 15748 (41)
42065 N/A N/A 20 N/A N/A
42067 N/A N/A 12 N/A N/A
42069 52 D 31 18407 (67) 18411 (49)
42071 45 D 74 17508 (64) 17545 (35)
42073 N/A N/A 16 N/A N/A
42075 52 D 17 17073 (65) 17042 (37)
42077 51 D 36 18018 (65) 18062 (33)
42079 N/A N/A 56 N/A N/A
42081 48 D 24 17810 (67) 17754 (33)
42083 N/A N/A 19 N/A N/A
42085 79 B 19 16121 (82) 16125 (67)
42087 N/A N/A 11 N/A N/A
42089 55 C 36 18321 (65) 18326 (41)
42091 40 D 87 19438 (50) 19460 (33)
42093 N/A N/A 2 N/A N/A
42095 64 C 29 18040 (67) 18343 (57)
42097 N/A N/A 27 N/A N/A
42099 N/A N/A 14 N/A N/A
42101 79 B 85 19102 (82) 19153 (72)
42103 N/A N/A 13 N/A N/A
42105 N/A N/A 12 N/A N/A
42107 N/A N/A 55 N/A N/A
42109 N/A N/A 16 N/A N/A
42111 70 B 38 15557 (83) 15937 (67)
42113 N/A N/A 9 N/A N/A
42115 67 C 28 18801 (67) 18847 (67)
42117 52 D 20 16901 (54) 16933 (50)
42119 N/A N/A 13 N/A N/A
42121 N/A N/A 13 N/A N/A
42123 66 C 21 16365 (75) 19345 (56)
42125 76 B 58 15019 (83) 15478 (67)
42127 N/A N/A 26 N/A N/A
42129 60 C 82 15062 (65) 15650 (33)
42131 50 D 9 18414 (50) 18657 (49)
42133 48 D 50 17401 (64) 17363 (34)

Most Common Contaminants in Pennsylvania

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Total Trihalomethanes (TTHM) Disinfection Byproducts 665 1765 Yes
Haloacetic Acids (HAA5) Disinfection Byproducts 643 1812 Yes
Contaminant 0700 Other 611 2186 Yes
E. coli Microbiological 599 1447 Yes
Consumer Confidence Report Rule Reporting 591 1741 Yes
Lead and Copper Rule Treatment Technique 572 4476 No
Fecal Coliform Microbiological 487 1336 Yes
Chlorite Disinfection Byproducts 469 1491 Yes

Overview

We track multi-source home safety signals for 2184 ZIP records across Pennsylvania. Home Safety Score model 4.0.0 is published for 737 scored records; missing required evidence suppresses the score.

The EPA snapshots used for this build directly map water systems to 1313 ZIP records, covering 758 community water systems that serve approximately 10,579,585 people.

1180 of 1313 ZIP codes with a reported violation count in the available EPA record (90%) have recorded EPA violations. 421 health-based violations appear in the available health breakdown.

Plumbing Regulations

Pennsylvania follows the International Plumbing Code (Uniform Construction Code) (2018 edition).

  • Plumbing code: IPC (2018)
  • Homeowner DIY: Allowed with permit
  • Water heater permit: Required
  • Annual backflow test: Required

Full Pennsylvania regulations →

Areas with Most Violations

ZIP Code City Home Safety Grade Violations Health-Based System
18322 Brodheadsville — 1204 0 R Own Lake Inc.
19460 Phoenixville F 983 2 Phoenixville Water Department
19403 Norristown F 941 0 Pa American Norristown
19426 Collegeville F 881 1 North Penn Water Authority
18041 East Greenville F 314 0 E Greenville Boro Water Department
18073 Pennsburg F 308 0 Upper Hanover Water Authority
18076 Red Hill F 305 0 Red Hill Water Authority
18974 Warminster F 273 0 Warminster Municipal Authority
17740 Jersey Shore D 266 0 Jersey Shore Area Jnt Wat Authority
17702 Williamsport F 261 0 Williamsport Mun Water Authority

Areas with No Violations

ZIP Code City Home Safety Grade System Population
15017 Bridgeville C Pa Amer Water Company-pittsburgh 686,000
15018 Buena Vista C Pa Amer Water Company-pittsburgh 686,000
15019 Bulger B Pa Amer Water Company-pittsburgh 686,000
15021 Burgettstown B Pa Amer Water Company-pittsburgh 686,000
15025 Clairton C Pa Amer Water Company-pittsburgh 686,000
15031 Cuddy — Pa Amer Water Company-pittsburgh 686,000
15034 Dravosburg C Pa Amer Water Company-pittsburgh 686,000
15045 Glassport C Pa Amer Water Company-pittsburgh 686,000
15047 Greenock — Pa Amer Water Company-pittsburgh 686,000
15054 Langeloth B Pa Amer Water Company-pittsburgh 686,000

Home Safety Score

Average Home Safety Score for Pennsylvania: C (57/100) across 737 scored of 2184 tracked ZIP records.

Model 4.0.0 uses the canonical components water-compliance, pfas-mcl-screen, radon-zone, annual-aqi across 3 required domains. The sections below provide additional context and do not change that score. Missing required evidence suppresses the score, and a favorable result is not a property-level safety certification.

Lead & Copper

  • Average lead level (90th percentile): 0.0055 mg/L (EPA action level: 0.015 mg/L)
  • 60 of 1150 ZIP codes with known status exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 1596 ZIP codes (73%)
  • Moderate risk (Zone 2): 477 ZIP codes
  • Low risk (Zone 3): 111 ZIP codes

ZIP Code Reports for Pennsylvania

Largest Communities

ZIP Code City Population Safety Grade Violations
19111 Philadelphia 2,422,600 B 35
19115 Philadelphia 2,422,600 B 35
19116 Philadelphia 2,422,600 B 35
19118 Philadelphia 2,422,600 B 35
19120 Philadelphia 2,422,600 B 35
19126 Philadelphia 2,422,600 B 35
19128 Philadelphia 2,422,600 B 35
19131 Philadelphia 2,422,600 B 35
19138 Philadelphia 2,422,600 B 35
19150 Philadelphia 2,422,600 B 35
19151 Philadelphia 2,422,600 B 35
19153 Philadelphia 2,422,600 B 35
19154 Philadelphia 1,659,001 B 7
19102 Philadelphia 1,600,000 B 5
19103 Philadelphia 1,600,000 B 5
19104 Philadelphia 1,600,000 B 5
19106 Philadelphia 1,600,000 B 5
19107 Philadelphia 1,600,000 B 5
19108 Philadelphia 1,600,000 — 5
19109 Philadelphia 1,600,000 — 5

Lowest Published Home Safety Scores

ZIP Code City Score Grade Violations
15108 Coraopolis 27 F 41
15009 Beaver 33 F 62
15059 Midland 33 F 65
15061 Monaca 33 F 46
15650 Latrobe 33 F 91

Highest Published Home Safety Scores

ZIP Code City Score Grade Violations
15019 Bulger 83 B 0
15021 Burgettstown 83 B 0
15054 Langeloth 83 B 0
15060 Midway 83 B 0
15067 New Eagle 83 B 0

All 2184 ZIP Codes in Pennsylvania

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Largest water systems in Pennsylvania

The 12 biggest community water systems serving Pennsylvania, of 758 total.

Show all 12 water systems

Systems with the most violations in Pennsylvania

12 systems in Pennsylvania with the most recorded EPA violations.

Frequently Asked Questions

Is the water safe to drink in Pennsylvania?

Pennsylvania has 758 community water systems serving 10,579,585 people across 2184 ZIP codes. There are 12,971 recorded violations, including 421 health-based. 1180 of 2184 ZIP codes have at least one violation.

What plumbing code does Pennsylvania follow?

Pennsylvania follows the IPC plumbing code. DIY plumbing work is allowed for homeowners.

Is lead a concern in Pennsylvania's drinking water?

60 ZIP codes in Pennsylvania have lead levels exceeding the EPA action level of 0.015 mg/L.

What is the radon risk in Pennsylvania?

73% of ZIP codes in Pennsylvania fall in EPA Radon Zone 1 (highest risk).

How to cite this page

APA ZipCheckup. (2026). Pennsylvania Home Safety Profiles by ZIP. https://zipcheckup.com/states/pennsylvania/
BibTeX 
@misc{zipcheckup-states-pennsylvania,
  author = {{ZipCheckup}},
  title  = {{Pennsylvania Home Safety Profiles by ZIP}},
  year   = {2026},
  url    = {https://zipcheckup.com/states/pennsylvania/}
}

Page version: August 2026.

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