Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow

ZipCheckup compares 50 ZIP codes across Baltimore, MD. The area averages a grade C (64/100); water systems associated with 25 ZIP codes have recorded EPA violations.

Home-safety conditions vary across Baltimore, MD. We compared 50 ZIP codes using the current versioned Home Safety Score. Water compliance remains one component alongside PFAS screening, radon, and annual air quality.

City Overview: Grade C (64/100)

Grade	Neighborhoods	%
A	0	0%
B	0	0%
C	24	100%
D	0	0%
F	0	0%

Neighborhood Rankings

Mapped ZIP codes in Baltimore ranked by Home Safety Score:

Rank	ZIP Code	Score	Grade	Violations	Lead Risk
1	21201	64	C	9	0.0027 mg/L
2	21202	64	C	9	0.0027 mg/L
3	21205	64	C	9	0.0027 mg/L
4	21206	64	C	9	0.0027 mg/L
5	21209	64	C	9	0.0027 mg/L
6	21212	64	C	9	0.0027 mg/L
7	21213	64	C	9	0.0027 mg/L
8	21214	64	C	9	0.0027 mg/L
9	21215	64	C	9	0.0027 mg/L
10	21216	64	C	9	0.0027 mg/L
11	21217	64	C	9	0.0027 mg/L
12	21218	64	C	9	0.0027 mg/L
13	21223	64	C	9	0.0027 mg/L
14	21224	64	C	9	0.0027 mg/L
15	21230	64	C	9	0.0027 mg/L
16	21231	64	C	9	0.0027 mg/L
17	21233	64	C	9	0.0027 mg/L
18	21239	64	C	9	0.0027 mg/L
19	21250	64	C	9	0.0027 mg/L
20	21251	64	C	9	0.0027 mg/L
21	21287	64	C	9	0.0027 mg/L
22	21210	62	C	13	0.0027 mg/L
23	21211	62	C	13	0.0027 mg/L
24	21229	60	C	18	0.0027 mg/L
25	21203	—	—	—	No data
26	21235	—	—	—	No data
27	21240	—	—	—	No data
28	21241	—	—	—	No data
29	21260	—	—	—	No data
30	21263	—	—	—	No data
31	21264	—	—	—	No data
32	21265	—	—	—	No data
33	21268	—	—	—	No data
34	21270	—	—	—	No data
35	21273	—	—	—	No data
36	21274	—	—	—	No data
37	21275	—	—	—	No data
38	21278	—	—	—	No data
39	21279	—	—	—	No data
40	21280	—	—	—	No data
41	21281	—	—	—	No data
42	21282	—	—	—	No data
43	21283	—	—	—	No data
44	21284	—	—	—	No data
45	21285	—	—	9	0.0027 mg/L
46	21288	—	—	—	No data
47	21289	—	—	—	No data
48	21290	—	—	—	No data
49	21297	—	—	—	No data
50	21298	—	—	—	No data

How Neighborhoods Compare

Each ZIP code compared to county and state averages:

• 0 neighborhoods score better than county average
• 24 neighborhoods score worse than county average

EPA Violations

• 22 total violations since 2021 across the water systems mapped to Baltimore ZIP codes (each system counted once; includes small systems beyond the city utility)
• 4 health-based violation records in the available EPA data
• 25 of 25 directly mapped ZIP records are mapped to water systems with recorded violations
• 0 of 25 ZIP records with known lead status are served by a system whose 90th-percentile lead result exceeded the EPA action level

Top Contaminants

Contaminant	Violations	ZIPs
Toxaphene	50	25
Chlordane	50	25
Lead and Copper Rule Revisions	31	25
Total Trihalomethanes (TTHM)	28	25
Revised Total Coliform Rule	26	25

Frequently Asked Questions

Which ZIP code in Baltimore has the highest home safety score?

ZIP code 21201 has the highest safety score among scored ZIP codes in Baltimore at 64/100 (grade C). Check the full report for details.

Is Baltimore water safe to drink?

The Home Safety Score is not a drinking-water grade. Across 25 directly mapped ZIP records, 22 EPA violations are recorded; 0 of 25 records with known lead status exceed the action level. Check the specific ZIP and serving system before drawing a property-level conclusion.

Related Pages

• Baltimore, MD city page
• Maryland state rankings
• All Maryland alerts

Data Sources

• EPA SDWIS
• U.S. Census Bureau

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