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2026 Rankings

Lehigh County, Pennsylvania Home Safety Rankings - 29 ZIPs

Explore rankings under Home Safety Score model 4.0.0. Only ZIPs with all four required inputs are ranked; missing evidence is not imputed or reweighted.

Lehigh County, Pennsylvania (Pennsylvania) includes 29 tracked ZIP codes and 25 mapped community water systems; confirm service for a specific address. Below are the water quality rankings for metro ZIPs with all required inputs.

Average Home Safety Grade: D (52/100)

Grade	ZIP Codes	%
A	0	0%
B	0	0%
C	5	50%
D	3	30%
F	2	20%

Top 10 ZIP Codes by Home Safety Score

Rank	ZIP	City	Score	Grade
1	18078	Schnecksville	65	C
2	18032	Catasauqua	63	C
3	18067	Northampton	63	C
4	18036	Coopersburg	61	C
5	18080	Slatington	59	C
6	18037	Coplay	49	D
7	18052	Whitehall	48	D
8	17003	Annville	47	D
9	18049	Emmaus	33	F
10	18062	Macungie	33	F

10 Riskiest ZIP Codes

Rank	ZIP	City	Score	Grade	Risk Factor
1	18062	Macungie	33	F	108 violations
2	18049	Emmaus	33	F	113 violations
3	17003	Annville	47	D	8 violations
4	18052	Whitehall	48	D	7 violations
5	18037	Coplay	49	D	3 violation(s)
6	18080	Slatington	59	C	22 violations
7	18036	Coopersburg	61	C	13 violations
8	18067	Northampton	63	C	9 violations
9	18032	Catasauqua	63	C	12 violations
10	18078	Schnecksville	65	C	5 violations

Most Common Contaminant Violations

Contaminant	Violations	ZIPs Affected
Groundwater Rule	44	14
Consumer Confidence Report Rule	29	17
Lead	21	8
Copper	21	8
Chlorite	15	8
Haloacetic Acids (HAA5)	12	8
Total Trihalomethanes (TTHM)	11	7
Endrin	9	3

Lead Risk

Average of reported 90th-percentile lead results: 0.0036 mg/L (below EPA action level)
0 of 15 ZIP codes with known status exceed EPA lead action level
26% of housing built before 1950
45% of housing built before 1970

Cities in This Metro

Emmaus, PA — 3 ZIP codes
Annville, PA — 1 ZIP code
Ono, PA — 1 ZIP code
Alburtis, PA — 1 ZIP code
Catasauqua, PA — 1 ZIP code
Cherryville, PA — 1 ZIP code
Coopersburg, PA — 1 ZIP code
Coplay, PA — 1 ZIP code
Danielsville, PA — 1 ZIP code
East Texas, PA — 1 ZIP code
Whitehall, PA — 1 ZIP code
Germansville, PA — 1 ZIP code
Laurys Station, PA — 1 ZIP code
Limeport, PA — 1 ZIP code
Macungie, PA — 1 ZIP code
Neffs, PA — 1 ZIP code
New Tripoli, PA — 1 ZIP code
Northampton, PA — 1 ZIP code
Old Zionsville, PA — 1 ZIP code
Schnecksville, PA — 1 ZIP code
Slatedale, PA — 1 ZIP code
Slatington, PA — 1 ZIP code
Treichlers, PA — 1 ZIP code
Trexlertown, PA — 1 ZIP code
Walnutport, PA — 1 ZIP code
Zionsville, PA — 1 ZIP code
Zionhill, PA — 1 ZIP code

All 29 ZIP Codes Ranked

View complete ranking

Rank	ZIP	City	Score	Grade	Violations
1	18078	Schnecksville	65	C	5
2	18032	Catasauqua	63	C	12
3	18067	Northampton	63	C	9
4	18036	Coopersburg	61	C	13
5	18080	Slatington	59	C	22
6	18037	Coplay	49	D	3
7	18052	Whitehall	48	D	7
8	17003	Annville	47	D	8
9	18049	Emmaus	33	F	113
10	18062	Macungie	33	F	108
11	17077	Ono	—	—	—
12	18011	Alburtis	—	—	13
13	18038	Danielsville	—	—	3
14	18046	East Texas	—	—	9
15	18053	Germansville	—	—	—
16	18059	Laurys Station	—	—	3
17	18065	Neffs	—	—	1
18	18066	New Tripoli	—	—	9
19	18079	Slatedale	—	—	—
20	18086	Treichlers	—	—	—
21	18087	Trexlertown	—	—	9
22	18088	Walnutport	—	—	60
23	18092	Zionsville	—	—	93

Data Sources

Water quality: EPA SDWIS
Housing: U.S. Census Bureau American Community Survey
Flood: FEMA NFIP
Flood scope: historical NFIP claim records and claim-rated-zone evidence; this is not current property-map coverage.

Reporting periods vary by source; the page metadata identifies this materialization.

Methodology
Model 4.0.0 averages SDWIS water compliance and UCMR5 PFAS within drinking water, then averages drinking water, county radon, and annual AQI as three equal domains. All four inputs are required. Score methodology → · Rankings methodology →

Disclaimer: Scores are based on EPA SDWIS reported data and are not a guarantee of current water safety. Water quality can change. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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How to cite this page

APA

ZipCheckup. (2026). Lehigh County, Pennsylvania Home Safety Rankings - 29 ZIPs. https://zipcheckup.com/rankings/metro/lehigh-pennsylvania/

BibTeX

@misc{zipcheckup-rankings-metro-lehigh-pennsylvania,
  author = {{ZipCheckup}},
  title  = {{Lehigh County, Pennsylvania Home Safety Rankings - 29 ZIPs}},
  year   = {2026},
  url    = {https://zipcheckup.com/rankings/metro/lehigh-pennsylvania/}
}

Page version: October 2026.

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