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

Charleston Home Safety Rankings - 72 ZIPs

Name: Charleston Home Safety Rankings - 72 ZIPs
Creator: ZipCheckup
Published: 2026-10-15
License: https://creativecommons.org/licenses/by/4.0/

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.

Charleston (South Carolina) includes 72 tracked ZIP codes and 29 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: B (83/100)

Grade	ZIP Codes	%
A	0	0%
B	35	100%
C	0	0%
D	0	0%
F	0	0%

Top 10 ZIP Codes by Home Safety Score

Rank	ZIP	City	Score	Grade
1	29401	Charleston	83	B
2	29403	Charleston	83	B
3	29404	Charleston Afb	83	B
4	29405	North Charleston	83	B
5	29406	Charleston	83	B
6	29407	Charleston	83	B
7	29409	Charleston	83	B
8	29410	Hanahan	83	B
9	29412	Charleston	83	B
10	29414	Charleston	83	B

10 Riskiest ZIP Codes

Rank	ZIP	City	Score	Grade	Risk Factor
1	29466	Mount Pleasant	77	B	9 violations
2	29486	Summerville	78	B	12 violations
3	29455	Johns Island	82	B	3 violation(s)
4	29492	Charleston	83	B	—
5	29482	Sullivans Island	83	B	—
6	29479	Saint Stephen	83	B	—
7	29470	Ravenel	83	B	—
8	29469	Pinopolis	83	B	—
9	29468	Pineville	83	B	—
10	29464	Mount Pleasant	83	B	—

Most Common Contaminant Violations

Contaminant	Violations	ZIPs Affected
Haloacetic Acids (HAA5)	15	8
Surface Water Treatment Rule	13	6
Consumer Confidence Report Rule	9	5
Total Trihalomethanes (TTHM)	7	6
E. coli	7	3
Revised Total Coliform Rule	6	4
Stage 1 DBP Rule	5	5
Toxaphene	1	1

Lead Risk

Average of reported 90th-percentile lead results: 0.0025 mg/L (below EPA action level)
0 of 46 ZIP codes with known status exceed EPA lead action level
6% of housing built before 1950
18% of housing built before 1970

Cities in This Metro

Charleston, SC — 16 ZIP codes
North Charleston, SC — 5 ZIP codes
Summerville, SC — 4 ZIP codes
Mount Pleasant, SC — 3 ZIP codes
Georgetown, SC — 2 ZIP codes
Johns Island, SC — 2 ZIP codes
Charleston Afb, SC — 1 ZIP code
Hanahan, SC — 1 ZIP code
Adams Run, SC — 1 ZIP code
Awendaw, SC — 1 ZIP code
Bonneau, SC — 1 ZIP code
Branchville, SC — 1 ZIP code
Canadys, SC — 1 ZIP code
Cordesville, SC — 1 ZIP code
Cottageville, SC — 1 ZIP code
Cross, SC — 1 ZIP code
Dorchester, SC — 1 ZIP code
Edisto Island, SC — 1 ZIP code
Folly Beach, SC — 1 ZIP code
Goose Creek, SC — 1 ZIP code
Green Pond, SC — 1 ZIP code
Grover, SC — 1 ZIP code
Harleyville, SC — 1 ZIP code
Hollywood, SC — 1 ZIP code
Huger, SC — 1 ZIP code
Isle Of Palms, SC — 1 ZIP code
Jacksonboro, SC — 1 ZIP code
Jamestown, SC — 1 ZIP code
Ladson, SC — 1 ZIP code
Mc Clellanville, SC — 1 ZIP code

...and 16 more cities

All 72 ZIP Codes Ranked

View complete ranking

Rank	ZIP	City	Score	Grade	Violations
1	29401	Charleston	83	B	0
2	29403	Charleston	83	B	0
3	29404	Charleston Afb	83	B	0
4	29405	North Charleston	83	B	0
5	29406	Charleston	83	B	0
6	29407	Charleston	83	B	0
7	29409	Charleston	83	B	0
8	29410	Hanahan	83	B	0
9	29412	Charleston	83	B	0
10	29414	Charleston	83	B	0
11	29418	North Charleston	83	B	2
12	29424	Charleston	83	B	0
13	29426	Adams Run	83	B	0
14	29429	Awendaw	83	B	0
15	29431	Bonneau	83	B	0
16	29434	Cordesville	83	B	0
17	29436	Cross	83	B	0
18	29439	Folly Beach	83	B	0
19	29445	Goose Creek	83	B	0
20	29449	Hollywood	83	B	0
21	29450	Huger	83	B	0
22	29451	Isle Of Palms	83	B	2
23	29453	Jamestown	83	B	0
24	29461	Moncks Corner	83	B	0
25	29464	Mount Pleasant	83	B	0
26	29468	Pineville	83	B	0
27	29469	Pinopolis	83	B	0
28	29470	Ravenel	83	B	0
29	29479	Saint Stephen	83	B	0
30	29482	Sullivans Island	83	B	0
31	29492	Charleston	83	B	0
32	29455	Johns Island	82	B	3
33	29486	Summerville	78	B	12
34	29466	Mount Pleasant	77	B	9
35	29420	North Charleston	—	—	2
36	29432	Branchville	—	—	0
37	29435	Cottageville	—	—	—
38	29437	Dorchester	—	—	—
39	29438	Edisto Island	—	—	—
40	29440	Georgetown	—	—	10
41	29446	Green Pond	—	—	—
42	29448	Harleyville	—	—	—
43	29452	Jacksonboro	—	—	—
44	29456	Ladson	—	—	2
45	29458	Mc Clellanville	—	—	—
46	29471	Reevesville	—	—	3
47	29472	Ridgeville	—	—	1
48	29474	Round O	—	—	0
49	29475	Ruffin	—	—	—
50	29477	Saint George	—	—	3
51	29481	Smoaks	—	—	—
52	29483	Summerville	—	—	14
53	29485	Summerville	—	—	2
54	29487	Wadmalaw Island	—	—	—
55	29488	Walterboro	—	—	0
56	29493	Williams	—	—	—

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). Charleston Home Safety Rankings - 72 ZIPs. https://zipcheckup.com/rankings/metro/charleston/

BibTeX

@misc{zipcheckup-rankings-metro-charleston,
  author = {{ZipCheckup}},
  title  = {{Charleston Home Safety Rankings - 72 ZIPs}},
  year   = {2026},
  url    = {https://zipcheckup.com/rankings/metro/charleston/}
}

Page version: October 2026.

Get safety alerts

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

Unsubscribe anytime. Privacy Policy.