COUNTY REPORT CA

Monterey County, California

36 ZIP codes · Avg score 75/100 · Grade B

ZipCheckup grade for Monterey County: B.

This ZIP has a few items worth a quick check.

In Monterey County, where this site follows 36 ZIP codes, the composite grade sits in the upper band.

How Monterey County Compares

Monterey County75/100
California avg76/100
National avg73/100

How Monterey County Compares

B
County Grade
75/100
Avg Safety Score
36
ZIP Codes
33
Water Systems

Monterey County scores 1 points below the California state average (76/100) and 2 points above the national average (73/100).

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

B
County Grade
75
Avg Safety Score
36
ZIP Codes
Best ZIP: 93905 (83/100)
Lowest ZIP: 93924 (66/100)
$666K
Median Home Value
$480
Avg Remediation (0.07% of home value)

ZIP Code Risk Map

Water Quality Map: Monterey County, California

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 11.6 (asthma 9.6%, diabetes 12.5%)

Modeled additional annual cost estimate per homeowner: $2,617, largest modeled factor: Wildfire

59% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.6% (national: 8.9%)
Diabetes 12.5% (national: 10.5%)
Obesity 31.1% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1973
Median Build Year
59%
Pre-1980 Housing
42/100
Infrastructure Stress Indicator
50%
ZIPs with High Infrastructure Stress
High
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $2,617

Wildfire $1,150/yr
Flood $924/yr
Energy Code Gap $523/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

143,377 housing units in Monterey County

Pre-1940 7%
1940–1959 20%
1960–1979 32%
1980–1999 26%
2000+ 14%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Water Safety Affordability

How much it costs to fix water issues relative to home values in Monterey County

$666K
Median Home Value
$480
Est. Remediation Cost
0.1%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Monterey County can be compared with the median property value; actual costs vary by property.

Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.

Health Outcomes vs National Average

CDC PLACES data for Monterey County residents

Asthma 9.6% (US avg: 8.9%)
Diabetes 12.5% (US avg: 11%)
Obesity 31.1% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to Monterey County ZIP codes

8 community water systems mapped to Monterey County ZIP codes; EPA may list more systems serving the county.

Show all 8 water systems

33 water systems mapped to Monterey County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Monterey County

5 water systems with violations in EPA records.

All ZIP Codes in Monterey County

36 ZIP codes tracked in Monterey County.

# ZIP Code City Safety Score Grade Violations Home Value
1 93905 Salinas 83 B 0 $570K
2 93906 Salinas 83 B 0 $595K
3 93926 Gonzales 83 B 2 $598K
4 93933 Marina 83 B 0 $777K
5 95012 Castroville 83 B 2 $630K
6 95039 Moss Landing 83 B 0 $441K
7 93901 Salinas 82 B 3 $721K
8 93908 Salinas 82 B 5 $1071K
9 93960 Soledad 80 B 6 $568K
10 93930 King City 79 B 2 (1 health) $404K
11 93927 Greenfield 78 B 3 (1 health) $464K
12 93907 Salinas 69 C 28 (24 health) $677K
13 93921 Carmel By The Sea 67 C 0 $2000K
14 93940 Monterey 67 C 0 $1040K
15 93943 Monterey 67 C 0 —
16 93944 Monterey 67 C 0 —
17 93950 Pacific Grove 67 C 0 $1129K
18 93953 Pebble Beach 67 C 0 $1797K
19 93955 Seaside 67 C 0 $694K
20 93923 Carmel 66 C 1 $1571K
21 93924 Carmel Valley 66 C 1 $1133K
22 93426 Bradley — — 10 (10 health) $472K
23 93450 San Ardo — — $427K
24 93451 San Miguel — — 10 (10 health) $582K
25 93902 Salinas — — —
26 93912 Salinas — — —
27 93915 Salinas — — —
28 93920 Big Sur — — $1804K
29 93922 Carmel — — —
30 93925 Chualar — — 2 $656K
31 93928 Jolon — — —
32 93932 Lockwood — — $550K
33 93942 Monterey — — —
34 93954 San Lucas — — $303K
35 93962 Spreckels — — $830K
36 95004 Aromas — — 5 (2 health) $914K

Recommended Buyer Guides for Monterey County

The guides listed here are chosen from this county's data, and the short note beside each one says why it made the list.

Overview

Monterey County in California covers 36 tracked ZIP records with an average Home Safety Score of B (75/100) across 21 scored records.

14 of 25 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 37 health-based violations appear in the available health breakdown.

← Back to California Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Monterey County?
Monterey County receives an average Home Safety grade of B from its scored ZIP records (36 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Monterey County?
We map 33 public water systems to 36 ZIP codes in our data for Monterey County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Monterey County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Monterey County is wildfire. Across all modeled risk factors, the estimated average additional annual cost is $2,617 per homeowner; actual costs vary by home.
How old are homes in Monterey County?
The median home build year in Monterey County is 1973. 59% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Monterey County compare to California?
Monterey County has an average Home Safety Score of 75/100 under model 4.0.0, which is below the California state average of 76/100.

How to cite this page

APA ZipCheckup. (2026). Monterey County, CA: HSS 75/100; 37 Health Violations. https://zipcheckup.com/county/california/monterey/
BibTeX
@misc{zipcheckup-county-california-monterey,
  author = {{ZipCheckup}},
  title  = {{Monterey County, CA: HSS 75/100; 37 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/california/monterey/}
}

Page version: October 2026.

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