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

ZipCheckup compares 81 ZIP codes across San Diego, CA. The area averages a grade A (91/100); water systems associated with 2 ZIP codes have recorded EPA violations.

Home-safety conditions vary across San Diego, CA. We compared 81 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 A (91/100)

Grade	Neighborhoods	%
A	35	95%
B	1	3%
C	1	3%
D	0	0%
F	0	0%

Neighborhood Rankings

Mapped ZIP codes in San Diego ranked by Home Safety Score:

Rank	ZIP Code	Score	Grade	Violations	Lead Risk
1	92102	92	A	0	No data
2	92103	92	A	0	No data
3	92104	92	A	0	No data
4	92105	92	A	0	No data
5	92106	92	A	0	No data
6	92107	92	A	0	No data
7	92108	92	A	0	No data
8	92109	92	A	0	No data
9	92110	92	A	0	No data
10	92111	92	A	0	No data
11	92113	92	A	0	No data
12	92114	92	A	0	No data
13	92115	92	A	0	No data
14	92116	92	A	0	No data
15	92117	92	A	0	No data
16	92119	92	A	0	No data
17	92120	92	A	0	No data
18	92121	92	A	0	No data
19	92122	92	A	0	No data
20	92123	92	A	0	No data
21	92124	92	A	0	No data
22	92126	92	A	0	No data
23	92127	92	A	0	0.0017 mg/L
24	92128	92	A	0	No data
25	92129	92	A	0	No data
26	92130	92	A	0	0.0017 mg/L
27	92131	92	A	0	No data
28	92134	92	A	0	No data
29	92135	92	A	0	No data
30	92136	92	A	0	No data
31	92139	92	A	0	No data
32	92140	92	A	0	No data
33	92145	92	A	0	No data
34	92161	92	A	0	No data
35	92182	92	A	0	No data
36	92154	74	B	1	0.0020 mg/L
37	92101	67	C	0	No data
38	92112	—	—	—	No data
39	92132	—	—	0	No data
40	92133	—	—	—	No data
41	92137	—	—	—	No data
42	92138	—	—	—	No data
43	92142	—	—	—	No data
44	92147	—	—	0	No data
45	92149	—	—	—	No data
46	92150	—	—	—	No data
47	92152	—	—	—	No data
48	92153	—	—	—	No data
49	92155	—	—	1	0.0020 mg/L
50	92158	—	—	—	No data
51	92159	—	—	—	No data
52	92160	—	—	—	No data
53	92162	—	—	—	No data
54	92163	—	—	—	No data
55	92164	—	—	—	No data
56	92165	—	—	—	No data
57	92166	—	—	—	No data
58	92167	—	—	—	No data
59	92168	—	—	—	No data
60	92169	—	—	—	No data
61	92170	—	—	—	No data
62	92171	—	—	—	No data
63	92172	—	—	—	No data
64	92174	—	—	—	No data
65	92175	—	—	—	No data
66	92176	—	—	—	No data
67	92177	—	—	—	No data
68	92179	—	—	—	No data
69	92184	—	—	—	No data
70	92186	—	—	—	No data
71	92187	—	—	—	No data
72	92190	—	—	—	No data
73	92191	—	—	—	No data
74	92192	—	—	—	No data
75	92193	—	—	—	No data
76	92194	—	—	—	No data
77	92195	—	—	—	No data
78	92196	—	—	—	No data
79	92197	—	—	—	No data
80	92198	—	—	—	No data
81	92199	—	—	—	No data

How Neighborhoods Compare

Each ZIP code compared to county and state averages:

• 36 neighborhoods score better than county average
• 1 neighborhoods score worse than county average

EPA Violations

• 1 total violations since 2021 across the water systems mapped to San Diego ZIP codes (each system counted once; includes small systems beyond the city utility)
• 1 health-based violation records in the available EPA data
• 2 of 40 directly mapped ZIP records are mapped to water systems with recorded violations
• 0 of 40 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
Revised Total Coliform Rule	2	2

Frequently Asked Questions

Which ZIP code in San Diego has the highest home safety score?

ZIP code 92102 has the highest safety score among scored ZIP codes in San Diego at 92/100 (grade A). Check the full report for details.

Is San Diego water safe to drink?

The Home Safety Score is not a drinking-water grade. Across 40 directly mapped ZIP records, 1 EPA violation is recorded; 0 of 40 records with known lead status exceed the action level. Check the specific ZIP and serving system before drawing a property-level conclusion.

Related Pages

• San Diego, CA city page
• California state rankings
• All California alerts

Data Sources

• EPA SDWIS
• U.S. Census Bureau

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