2026 Rankings

Safest ZIP Codes in California — Safety Scores 2026

Last updated: August 14, 2026

1,046 ZIP codes ranked by Safety Score #1: ZIP 94556 (Moraga, CA) - 100/100
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 1,046 ZIP codes with data in California, these are the highest-ranked areas for safety score. See also: National Highest Home Safety Scores in America | All California Rankings

Statistic Value
ZIP codes ranked 1,046
Highest value 100/100
Median value 75/100
State California

Top 100 Highest-Scoring ZIP Codes

Rank ZIP Code City State Safety Score Safety Score
1 94556 Moraga CA 100/100 100/100
2 94571 Rio Vista CA 100/100 100/100
3 94589 Vallejo CA 100/100 100/100
4 94590 Vallejo CA 100/100 100/100
5 94901 San Rafael CA 100/100 100/100
6 94903 San Rafael CA 100/100 100/100
7 94904 Greenbrae CA 100/100 100/100
8 94920 Belvedere Tiburon CA 100/100 100/100
9 94924 Bolinas CA 100/100 100/100
10 94925 Corte Madera CA 100/100 100/100
11 94930 Fairfax CA 100/100 100/100
12 94933 Forest Knolls CA 100/100 100/100
13 94937 Inverness CA 100/100 100/100
14 94938 Lagunitas CA 100/100 100/100
15 94939 Larkspur CA 100/100 100/100
16 94941 Mill Valley CA 100/100 100/100
17 94945 Novato CA 100/100 100/100
18 94946 Nicasio CA 100/100 100/100
19 94947 Novato CA 100/100 100/100
20 94949 Novato CA 100/100 100/100
21 94957 Ross CA 100/100 100/100
22 94960 San Anselmo CA 100/100 100/100
23 94963 San Geronimo CA 100/100 100/100
24 94964 San Quentin CA 100/100 100/100
25 94965 Sausalito CA 100/100 100/100
26 94973 Woodacre CA 100/100 100/100
27 95304 Tracy CA 100/100 100/100
28 95320 Escalon CA 100/100 100/100
29 95324 Hilmar CA 100/100 100/100
30 95376 Tracy CA 100/100 100/100
31 95391 Tracy CA 100/100 100/100
32 95401 Santa Rosa CA 100/100 100/100
33 95403 Santa Rosa CA 100/100 100/100
34 95436 Forestville CA 100/100 100/100
35 95446 Guerneville CA 100/100 100/100
36 95451 Kelseyville CA 100/100 100/100
37 95458 Lucerne CA 100/100 100/100
38 95464 Nice CA 100/100 100/100
39 95467 Hidden Valley Lake CA 100/100 100/100
40 95470 Redwood Valley CA 100/100 100/100
41 95492 Windsor CA 100/100 100/100
42 95501 Eureka CA 100/100 100/100
43 95503 Eureka CA 100/100 100/100
44 95524 Bayside CA 100/100 100/100
45 95537 Fields Landing CA 100/100 100/100
46 95540 Fortuna CA 100/100 100/100
47 95562 Rio Dell CA 100/100 100/100
48 95589 Whitethorn CA 100/100 100/100
49 95610 Citrus Heights CA 100/100 100/100
50 95616 Davis CA 100/100 100/100
51 95620 Dixon CA 100/100 100/100
52 95621 Citrus Heights CA 100/100 100/100
53 95626 Elverta CA 100/100 100/100
54 95630 Folsom CA 100/100 100/100
55 95662 Orangevale CA 100/100 100/100
56 95694 Winters CA 100/100 100/100
57 95695 Woodland CA 100/100 100/100
58 95837 Sacramento CA 100/100 100/100
59 95842 Sacramento CA 100/100 100/100
60 95843 Antelope CA 100/100 100/100
61 95953 Live Oak CA 100/100 100/100
62 95966 Oroville CA 100/100 100/100
63 95969 Paradise CA 100/100 100/100
64 95988 Willows CA 100/100 100/100
65 95991 Yuba City CA 100/100 100/100
66 95993 Yuba City CA 100/100 100/100
67 96008 Bella Vista CA 100/100 100/100
68 96019 Shasta Lake CA 100/100 100/100
69 96047 Igo CA 100/100 100/100
70 96073 Palo Cedro CA 100/100 100/100
71 93620 Dos Palos CA 99/100 99/100
72 93665 South Dos Palos CA 99/100 99/100
73 94931 Cotati CA 99/100 99/100
74 94952 Petaluma CA 99/100 99/100
75 94954 Petaluma CA 99/100 99/100
76 95407 Santa Rosa CA 99/100 99/100
77 95425 Cloverdale CA 99/100 99/100
78 95441 Geyserville CA 99/100 99/100
79 95448 Healdsburg CA 99/100 99/100
80 95521 Arcata CA 99/100 99/100
81 95525 Blue Lake CA 99/100 99/100
82 95618 Davis CA 99/100 99/100
83 95628 Fair Oaks CA 99/100 99/100
84 95776 Woodland CA 99/100 99/100
85 95932 Colusa CA 99/100 99/100
86 95987 Williams CA 99/100 99/100
87 96021 Corning CA 99/100 99/100
88 95519 Mckinleyville CA 98/100 98/100
89 95422 Clearlake CA 97/100 97/100
90 95490 Willits CA 97/100 97/100
91 93635 Los Banos CA 96/100 96/100
92 94510 Benicia CA 96/100 96/100
93 94535 Travis Afb CA 96/100 96/100
94 94591 Vallejo CA 96/100 96/100
95 95322 Gustine CA 96/100 96/100
96 95334 Livingston CA 96/100 96/100
97 95437 Fort Bragg CA 96/100 96/100
98 95453 Lakeport CA 96/100 96/100
99 95472 Sebastopol CA 96/100 96/100
100 95605 West Sacramento CA 96/100 96/100

Methodology

Home Safety Score model 4.0.0 combines SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, county-level EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. A score requires all domains.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-08-14.

Frequently Asked Questions

What makes a ZIP code score highly?

Higher scores come from favorable measured results for water compliance, the PFAS MCL screen, radon zone, and annual AQI. The score is a screening metric, not a safety certification.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →

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Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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