Home Safety Water Safety Lead Risk PFAS Contamination Flood Risk Air Quality Mold Risk Wildfire Risk Earthquake Risk Infrastructure Risk CO & Gas Safety School Safety Superfund Proximity

2026 Rankings

Sussex County, Delaware Home Safety Rankings - 24 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.

Sussex County, Delaware (Delaware) includes 24 tracked ZIP codes and 51 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: A (86/100)

Grade	ZIP Codes	%
A	4	22%
B	14	78%
C	0	0%
D	0	0%
F	0	0%

Top 10 ZIP Codes by Home Safety Score

Rank	ZIP	City	Score	Grade
1	19933	Bridgeville	100	A
2	19963	Milford	100	A
3	19956	Laurel	97	A
4	19973	Seaford	96	A
5	19930	Bethany Beach	83	B
6	19939	Dagsboro	83	B
7	19940	Delmar	83	B
8	19945	Frankford	83	B
9	19951	Harbeson	83	B
10	19958	Lewes	83	B

10 Riskiest ZIP Codes

Rank	ZIP	City	Score	Grade	Risk Factor
1	19947	Georgetown	81	B	4 violations
2	19944	Fenwick Island	82	B	3 violation(s)
3	19975	Selbyville	83	B	—
4	19971	Rehoboth Bch	83	B	Lead above EPA action level
5	19970	Ocean View	83	B	2 violation(s)
6	19968	Milton	83	B	Lead above EPA action level
7	19967	Millville	83	B	—
8	19966	Millsboro	83	B	1 violation(s)
9	19958	Lewes	83	B	Lead above EPA action level
10	19951	Harbeson	83	B	—

Most Common Contaminant Violations

Contaminant	Violations	ZIPs Affected
Surface Water Treatment Rule	15	10
Lead	9	3
Stage 1 DBP Rule	4	4
Consumer Confidence Report Rule	3	3
Groundwater Rule	2	2

Lead Risk

Average of reported 90th-percentile lead results: 0.0074 mg/L (below EPA action level)
3 of 22 ZIP codes with known status exceed EPA lead action level
6% of housing built before 1950
16% of housing built before 1970

Cities in This Metro

Bethany Beach, DE — 1 ZIP code
Bethel, DE — 1 ZIP code
Bridgeville, DE — 1 ZIP code
Dagsboro, DE — 1 ZIP code
Delmar, DE — 1 ZIP code
Ellendale, DE — 1 ZIP code
Fenwick Island, DE — 1 ZIP code
Frankford, DE — 1 ZIP code
Georgetown, DE — 1 ZIP code
Greenwood, DE — 1 ZIP code
Harbeson, DE — 1 ZIP code
Houston, DE — 1 ZIP code
Laurel, DE — 1 ZIP code
Lewes, DE — 1 ZIP code
Lincoln, DE — 1 ZIP code
Milford, DE — 1 ZIP code
Millsboro, DE — 1 ZIP code
Millville, DE — 1 ZIP code
Milton, DE — 1 ZIP code
Nassau, DE — 1 ZIP code
Ocean View, DE — 1 ZIP code
Rehoboth Bch, DE — 1 ZIP code
Seaford, DE — 1 ZIP code
Selbyville, DE — 1 ZIP code

All 24 ZIP Codes Ranked

View complete ranking

Rank	ZIP	City	Score	Grade	Violations
1	19933	Bridgeville	100	A	1
2	19963	Milford	100	A	0
3	19956	Laurel	97	A	6
4	19973	Seaford	96	A	8
5	19930	Bethany Beach	83	B	2
6	19939	Dagsboro	83	B	2
7	19940	Delmar	83	B	0
8	19945	Frankford	83	B	1
9	19951	Harbeson	83	B	0
10	19958	Lewes	83	B	0
11	19966	Millsboro	83	B	1
12	19967	Millville	83	B	0
13	19968	Milton	83	B	0
14	19970	Ocean View	83	B	2
15	19971	Rehoboth Bch	83	B	0
16	19975	Selbyville	83	B	0
17	19944	Fenwick Island	82	B	3
18	19947	Georgetown	81	B	4
19	19931	Bethel	—	—	—
20	19941	Ellendale	—	—	0
21	19950	Greenwood	—	—	2
22	19954	Houston	—	—	1
23	19960	Lincoln	—	—	0

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.

Explore More

By State

Contaminant Guides

Tools

How to cite this page

APA

ZipCheckup. (2026). Sussex County, Delaware Home Safety Rankings - 24 ZIPs. https://zipcheckup.com/rankings/metro/sussex-delaware/

BibTeX

@misc{zipcheckup-rankings-metro-sussex-delaware,
  author = {{ZipCheckup}},
  title  = {{Sussex County, Delaware Home Safety Rankings - 24 ZIPs}},
  year   = {2026},
  url    = {https://zipcheckup.com/rankings/metro/sussex-delaware/}
}

Page version: October 2026.

Get safety alerts

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

Unsubscribe anytime. Privacy Policy.