COUNTY REPORT CA

Calaveras County, California

21 ZIP codes · Avg score 81/100 · Grade B

ZipCheckup grade for Calaveras County: B.

This ZIP has a few items worth a quick check.

Calaveras County: upper grades, 21 ZIPs.

How Calaveras County Compares

Calaveras County81/100
California avg76/100
National avg73/100

How Calaveras County Compares

B
County Grade
81/100
Avg Safety Score
21
ZIP Codes
9
Water Systems

Calaveras County scores 5 points above the California state average (76/100) and 8 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
81
Avg Safety Score
21
ZIP Codes
Best ZIP: 95224 (83/100)
Lowest ZIP: 95251 (78/100)
$425K
Median Home Value
$1,240
Avg Remediation (0.29% of home value)

ZIP Code Risk Map

Water Quality Map: Calaveras 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: 13.8 (asthma 10.3%, diabetes 13.2%)

Modeled additional annual cost estimate per homeowner: $2,123, largest modeled factor: Wildfire

33% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.3% (national: 8.9%)
Diabetes 13.2% (national: 10.5%)
Obesity 29.8% (national: 32.4%)

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

Infrastructure Overview

1985
Median Build Year
33%
Pre-1980 Housing
34/100
Infrastructure Stress Indicator
21%
ZIPs with High Infrastructure Stress
Low
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: $2,123

Wildfire $1,200/yr
Sea Level Rise $400/yr
Energy Code Gap $335/yr

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

Housing Age Distribution

27,955 housing units in Calaveras County

Pre-1940 3%
1940–1959 6%
1960–1979 24%
1980–1999 43%
2000+ 23%

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 Calaveras County

$425K
Median Home Value
$1,240
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in Calaveras 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 Calaveras County residents

Asthma 10.3% (US avg: 8.9%)
Diabetes 13.2% (US avg: 11%)
Obesity 29.8% (US avg: 32.4%)

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

Water systems mapped to Calaveras County ZIP codes

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

Show all 8 water systems

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

Systems with the most violations in Calaveras County

3 water systems with violations in EPA records.

All ZIP Codes in Calaveras County

21 ZIP codes tracked in Calaveras County.

# ZIP Code City Safety Score Grade Violations Home Value
1 95224 Avery 83 B 0 —
2 95226 Campo Seco 83 B 0 —
3 95228 Copperopolis 83 B 0 $453K
4 95245 Mokelumne Hill 83 B 0 $425K
5 95252 Valley Springs 83 B 0 $444K
6 95247 Murphys 82 B 2 (2 health) $514K
7 95223 Arnold 81 B 3 (3 health) $476K
8 95222 Angels Camp 78 B 4 (3 health) $488K
9 95249 San Andreas 78 B 4 (3 health) $409K
10 95251 Vallecito 78 B 4 (3 health) $390K
11 95221 Altaville — — —
12 95225 Burson — — 0 $572K
13 95229 Douglas Flat — — —
14 95232 Glencoe — — $385K
15 95233 Hathaway Pines — — $298K
16 95246 Mountain Ranch — — 0 $409K
17 95248 Rail Road Flat — — —
18 95250 San Andreas — — —
19 95254 Wallace — — 0 $456K
20 95255 West Point — — 0 $272K
21 95257 Wilseyville — — $336K

Recommended Buyer Guides for Calaveras County

Up to five guides, picked by rule.

Overview

Calaveras County in California covers 21 tracked ZIP records with an average Home Safety Score of B (81/100) across 10 scored records.

5 of 14 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 6 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 Calaveras County?
Calaveras County receives an average Home Safety grade of B from its scored ZIP records (21 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Calaveras County?
We map 9 public water systems to 21 ZIP codes in our data for Calaveras County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Calaveras County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Calaveras County is wildfire. Across all modeled risk factors, the estimated average additional annual cost is $2,123 per homeowner; actual costs vary by home.
How old are homes in Calaveras County?
The median home build year in Calaveras County is 1985. 33% 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 Calaveras County compare to California?
Calaveras County has an average Home Safety Score of 81/100 under model 4.0.0, which is at or above the California state average of 76/100.

How to cite this page

APA ZipCheckup. (2026). Calaveras County, CA: HSS 81/100; 6 Health Violations. https://zipcheckup.com/county/california/calaveras/
BibTeX
@misc{zipcheckup-county-california-calaveras,
  author = {{ZipCheckup}},
  title  = {{Calaveras County, CA: HSS 81/100; 6 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/california/calaveras/}
}

Page version: October 2026.

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