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

San Diego Home Safety Rankings - 188 ZIPs

Name: San Diego Home Safety Rankings - 188 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.

San Diego (California) includes 188 tracked ZIP codes and 36 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 (89/100)

Grade	ZIP Codes	%
A	81	87%
B	11	12%
C	1	1%
D	0	0%
F	0	0%

Top 10 ZIP Codes by Home Safety Score

Rank	ZIP	City	Score	Grade
1	91901	Alpine	92	A
2	91913	Chula Vista	92	A
3	91914	Chula Vista	92	A
4	91915	Chula Vista	92	A
5	91935	Jamul	92	A
6	91941	La Mesa	92	A
7	91942	La Mesa	92	A
8	91945	Lemon Grove	92	A
9	91977	Spring Valley	92	A
10	91978	Spring Valley	92	A

10 Riskiest ZIP Codes

Rank	ZIP	City	Score	Grade	Risk Factor
1	92101	San Diego	67	C	—
2	92082	Valley Center	70	B	42 violations
3	92059	Pala	70	B	42 violations
4	92024	Encinitas	73	B	2 violation(s)
5	92154	San Diego	74	B	1 violation(s)
6	92040	Lakeside	74	B	2 violation(s)
7	91911	Chula Vista	74	B	1 violation(s)
8	92007	Cardiff By The Sea	75	B	1 violation(s)
9	91950	National City	75	B	—
10	91910	Chula Vista	75	B	—

Most Common Contaminant Violations

Contaminant	Violations	ZIPs Affected
Lead	67	4
Selenium	42	3
Consumer Confidence Report Rule	41	20
Total Trihalomethanes (TTHM)	22	7
Stage 2 DBP Rule	15	12
Haloacetic Acids (HAA5)	4	4
Stage 1 DBP Rule	4	4
Lead and Copper Rule	3	3

Lead Risk

Average of reported 90th-percentile lead results: 0.0035 mg/L (below EPA action level)
1 of 101 ZIP codes with known status exceed EPA lead action level
7% of housing built before 1950
29% of housing built before 1970

Cities in This Metro

San Diego, CA — 81 ZIP codes
Chula Vista, CA — 8 ZIP codes
Escondido, CA — 7 ZIP codes
Oceanside, CA — 7 ZIP codes
Carlsbad, CA — 6 ZIP codes
La Jolla, CA — 5 ZIP codes
La Mesa, CA — 4 ZIP codes
Spring Valley, CA — 4 ZIP codes
El Cajon, CA — 4 ZIP codes
San Marcos, CA — 4 ZIP codes
Vista, CA — 4 ZIP codes
Alpine, CA — 2 ZIP codes
Bonita, CA — 2 ZIP codes
Imperial Beach, CA — 2 ZIP codes
Lemon Grove, CA — 2 ZIP codes
National City, CA — 2 ZIP codes
Potrero, CA — 2 ZIP codes
Tecate, CA — 2 ZIP codes
Encinitas, CA — 2 ZIP codes
Fallbrook, CA — 2 ZIP codes
Poway, CA — 2 ZIP codes
Rancho Santa Fe, CA — 2 ZIP codes
Santee, CA — 2 ZIP codes
Coronado, CA — 2 ZIP codes
San Ysidro, CA — 2 ZIP codes
Boulevard, CA — 1 ZIP code
Campo, CA — 1 ZIP code
Descanso, CA — 1 ZIP code
Dulzura, CA — 1 ZIP code
Guatay, CA — 1 ZIP code

...and 21 more cities

All 188 ZIP Codes Ranked

View complete ranking

Rank	ZIP	City	Score	Grade	Violations
1	91901	Alpine	92	A	0
2	91913	Chula Vista	92	A	0
3	91914	Chula Vista	92	A	0
4	91915	Chula Vista	92	A	0
5	91935	Jamul	92	A	0
6	91941	La Mesa	92	A	0
7	91942	La Mesa	92	A	0
8	91945	Lemon Grove	92	A	0
9	91977	Spring Valley	92	A	0
10	91978	Spring Valley	92	A	0
11	92003	Bonsall	92	A	0
12	92008	Carlsbad	92	A	0
13	92010	Carlsbad	92	A	0
14	92011	Carlsbad	92	A	0
15	92019	El Cajon	92	A	0
16	92020	El Cajon	92	A	0
17	92025	Escondido	92	A	0
18	92027	Escondido	92	A	0
19	92037	La Jolla	92	A	0
20	92054	Oceanside	92	A	0
21	92056	Oceanside	92	A	0
22	92057	Oceanside	92	A	0
23	92067	Rancho Santa Fe	92	A	0
24	92071	Santee	92	A	0
25	92075	Solana Beach	92	A	0
26	92083	Vista	92	A	0
27	92091	Rancho Santa Fe	92	A	0
28	92093	La Jolla	92	A	0
29	92102	San Diego	92	A	0
30	92103	San Diego	92	A	0
31	92104	San Diego	92	A	0
32	92105	San Diego	92	A	0
33	92106	San Diego	92	A	0
34	92107	San Diego	92	A	0
35	92108	San Diego	92	A	0
36	92109	San Diego	92	A	0
37	92110	San Diego	92	A	0
38	92111	San Diego	92	A	0
39	92113	San Diego	92	A	0
40	92114	San Diego	92	A	0
41	92115	San Diego	92	A	0
42	92116	San Diego	92	A	0
43	92117	San Diego	92	A	0
44	92119	San Diego	92	A	0
45	92120	San Diego	92	A	0
46	92121	San Diego	92	A	0
47	92122	San Diego	92	A	0
48	92123	San Diego	92	A	0
49	92124	San Diego	92	A	0
50	92126	San Diego	92	A	0
51	92127	San Diego	92	A	0
52	92128	San Diego	92	A	0
53	92129	San Diego	92	A	0
54	92130	San Diego	92	A	0
55	92131	San Diego	92	A	0
56	92134	San Diego	92	A	0
57	92135	San Diego	92	A	0
58	92136	San Diego	92	A	0
59	92139	San Diego	92	A	0
60	92140	San Diego	92	A	0
61	92145	San Diego	92	A	0
62	91932	Imperial Beach	91	A	1
63	92004	Borrego Springs	91	A	1
64	92014	Del Mar	91	A	1
65	92021	El Cajon	91	A	2
66	92028	Fallbrook	91	A	3
67	92055	Camp Pendleton	91	A	1
68	92058	Oceanside	91	A	1
69	92064	Poway	91	A	2
70	92118	Coronado	91	A	1
71	92173	San Ysidro	91	A	1
72	92009	Carlsbad	90	A	2
73	92026	Escondido	90	A	3
74	92029	Escondido	90	A	4
75	92069	San Marcos	90	A	1
76	92078	San Marcos	90	A	1
77	92081	Vista	90	A	1
78	92084	Vista	90	A	1
79	92061	Pauma Valley	87	A	42
80	92065	Ramona	82	B	23
81	91902	Bonita	75	B	0
82	91910	Chula Vista	75	B	0
83	91950	National City	75	B	0
84	92007	Cardiff By The Sea	75	B	1
85	91911	Chula Vista	74	B	1
86	92040	Lakeside	74	B	2
87	92154	San Diego	74	B	1
88	92024	Encinitas	73	B	2
89	92059	Pala	70	B	42
90	92082	Valley Center	70	B	42
91	92101	San Diego	67	C	0
92	91905	Boulevard	—	—	—
93	91906	Campo	—	—	—
94	91916	Descanso	—	—	—
95	91917	Dulzura	—	—	—
96	91931	Guatay	—	—	—
97	91934	Jacumba	—	—	—
98	91948	Mount Laguna	—	—	—
99	91962	Pine Valley	—	—	—
100	91963	Potrero	—	—	—
101	91980	Tecate	—	—	—
102	92036	Julian	—	—	6
103	92060	Palomar Mountain	—	—	—
104	92066	Ranchita	—	—	—
105	92070	Santa Ysabel	—	—	5
106	92086	Warner Springs	—	—	5
107	92092	La Jolla	—	—	0
108	92147	San Diego	—	—	0
109	92155	San Diego	—	—	1
110	92179	San Diego	—	—	—

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). San Diego Home Safety Rankings - 188 ZIPs. https://zipcheckup.com/rankings/metro/san-diego/

BibTeX

@misc{zipcheckup-rankings-metro-san-diego,
  author = {{ZipCheckup}},
  title  = {{San Diego Home Safety Rankings - 188 ZIPs}},
  year   = {2026},
  url    = {https://zipcheckup.com/rankings/metro/san-diego/}
}

Page version: October 2026.

Get safety alerts

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

Unsubscribe anytime. Privacy Policy.