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2026 Rankings

Chester County, Pennsylvania Home Safety Rankings - 109 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.

Chester County, Pennsylvania (Pennsylvania) includes 109 tracked ZIP codes and 54 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 (44/100)

Grade	ZIP Codes	%
A	0	0%
B	0	0%
C	4	10%
D	22	54%
F	15	37%

Top 10 ZIP Codes by Home Safety Score

Rank	ZIP	City	Score	Grade
1	16428	North East	67	C
2	17978	Spring Glen	65	C
3	19365	Parkesburg	65	C
4	19345	Immaculata	56	C
5	19343	Glenmoore	50	D
6	19374	Toughkenamon	50	D
7	19474	Skippack	50	D
8	19490	Worcester	50	D
9	17043	Lemoyne	49	D
10	17602	Lancaster	48	D

10 Riskiest ZIP Codes

Rank	ZIP	City	Score	Grade	Risk Factor
1	19460	Phoenixville	33	F	983 violations
2	19422	Blue Bell	33	F	55 violations
3	19403	Norristown	33	F	941 violations
4	19383	West Chester	33	F	60 violations
5	19382	West Chester	33	F	70 violations
6	19380	West Chester	33	F	70 violations
7	19348	Kennett Square	33	F	209 violations
8	19344	Honey Brook	33	F	90 violations
9	19335	Downingtown	33	F	91 violations
10	19462	Plymouth Meeting	35	F	44 violations

Most Common Contaminant Violations

Contaminant	Violations	ZIPs Affected
Lead and Copper Rule	217	28
Groundwater Rule	144	38
Haloacetic Acids (HAA5)	59	32
Endothall	53	11
Total Trihalomethanes (TTHM)	53	29
Gross Alpha	51	20
Benzo(a)pyrene	50	11
Di(2-ethylhexyl) adipate	49	10

Lead Risk

Average of reported 90th-percentile lead results: 0.0037 mg/L (below EPA action level)
1 of 52 ZIP codes with known status exceed EPA lead action level
21% of housing built before 1950
41% of housing built before 1970

Cities in This Metro

Lancaster, PA — 12 ZIP codes
West Chester, PA — 5 ZIP codes
Valley Forge, PA — 5 ZIP codes
Southeastern, PA — 3 ZIP codes
Norristown, PA — 3 ZIP codes
Eagleville, PA — 2 ZIP codes
Conshohocken, PA — 2 ZIP codes
Pottstown, PA — 2 ZIP codes
North East, PA — 1 ZIP code
Lemoyne, PA — 1 ZIP code
Bart, PA — 1 ZIP code
Bausman, PA — 1 ZIP code
Bird In Hand, PA — 1 ZIP code
Bowmansville, PA — 1 ZIP code
Gap, PA — 1 ZIP code
Goodville, PA — 1 ZIP code
Kinzers, PA — 1 ZIP code
Kirkwood, PA — 1 ZIP code
Narvon, PA — 1 ZIP code
Peach Bottom, PA — 1 ZIP code
Penryn, PA — 1 ZIP code
Smoketown, PA — 1 ZIP code
Washington Boro, PA — 1 ZIP code
Witmer, PA — 1 ZIP code
Leck Kill, PA — 1 ZIP code
Klingerstown, PA — 1 ZIP code
Sacramento, PA — 1 ZIP code
Spring Glen, PA — 1 ZIP code
Atglen, PA — 1 ZIP code
Avondale, PA — 1 ZIP code

...and 53 more cities

All 109 ZIP Codes Ranked

View complete ranking

Rank	ZIP	City	Score	Grade	Violations
1	16428	North East	67	C	50
2	17978	Spring Glen	65	C	5
3	19365	Parkesburg	65	C	6
4	19345	Immaculata	56	C	30
5	19343	Glenmoore	50	D	0
6	19374	Toughkenamon	50	D	0
7	19474	Skippack	50	D	0
8	19490	Worcester	50	D	0
9	17043	Lemoyne	49	D	2
10	17602	Lancaster	48	D	4
11	19330	Cochranville	48	D	5
12	19352	Lincoln University	48	D	4
13	19363	Oxford	48	D	7
14	19475	Spring City	48	D	6
15	19464	Pottstown	47	D	8
16	17603	Lancaster	46	D	11
17	19350	Landenberg	46	D	8
18	19425	Chester Springs	46	D	11
19	19320	Coatesville	44	D	21
20	19520	Elverson	44	D	18
21	17505	Bird In Hand	43	D	20
22	19311	Avondale	42	D	24
23	19362	Nottingham	42	D	25
24	17601	Lancaster	41	D	22
25	19341	Exton	40	D	30
26	19375	Unionville	40	D	30
27	19390	West Grove	39	F	32
28	19401	Norristown	39	F	32
29	19405	Bridgeport	39	F	32
30	19406	King Of Prussia	39	F	32
31	19428	Conshohocken	39	F	32
32	19462	Plymouth Meeting	35	F	44
33	19335	Downingtown	33	F	91
34	19344	Honey Brook	33	F	90
35	19348	Kennett Square	33	F	209
36	19380	West Chester	33	F	70
37	19382	West Chester	33	F	70
38	19383	West Chester	33	F	60
39	19403	Norristown	33	F	941
40	19422	Blue Bell	33	F	55
41	19460	Phoenixville	33	F	983
42	17504	Bausman	—	—	—
43	17507	Bowmansville	—	—	—
44	17527	Gap	—	—	13
45	17535	Kinzers	—	—	9
46	17536	Kirkwood	—	—	—
47	17555	Narvon	—	—	—
48	17563	Peach Bottom	—	—	—
49	17576	Smoketown	—	—	—
50	17582	Washington Boro	—	—	—
51	17606	Lancaster	—	—	—
52	17836	Leck Kill	—	—	—
53	17941	Klingerstown	—	—	—
54	17968	Sacramento	—	—	5
55	19310	Atglen	—	—	6
56	19316	Brandamore	—	—	0
57	19358	Modena	—	—	4
58	19367	Pomeroy	—	—	4
59	19369	Sadsburyville	—	—	—
60	19372	Thorndale	—	—	28
61	19453	Mont Clare	—	—	12
62	19456	Oaks	—	—	1
63	19457	Parker Ford	—	—	1
64	19465	Pottstown	—	—	20

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). Chester County, Pennsylvania Home Safety Rankings - 109 ZIPs. https://zipcheckup.com/rankings/metro/chester-pennsylvania/

BibTeX

@misc{zipcheckup-rankings-metro-chester-pennsylvania,
  author = {{ZipCheckup}},
  title  = {{Chester County, Pennsylvania Home Safety Rankings - 109 ZIPs}},
  year   = {2026},
  url    = {https://zipcheckup.com/rankings/metro/chester-pennsylvania/}
}

Page version: October 2026.

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