COUNTY REPORT CA

Mono County, California

7 ZIP codes · Avg score 83/100 · Grade B

ZipCheckup grade for Mono County: B.

This ZIP has a few items worth a quick check.

Residents of Mono County can read the A-B grade as a starting point and then open their own ZIP report, one of 7 on this site.

How Mono County Compares

Mono County83/100
California avg76/100
National avg73/100

How Mono County Compares

B
County Grade
83/100
Avg Safety Score
7
ZIP Codes
4
Water Systems

Mono County scores 7 points above the California state average (76/100) and 10 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
83
Avg Safety Score
7
ZIP Codes
Best ZIP: 93514 (83/100)
Lowest ZIP: 93514 (83/100)
$352K
Median Home Value

ZIP Code Risk Map

Water Quality Map: Mono 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: 11.8 (asthma 9.9%, diabetes 10.5%)

Modeled additional annual cost estimate per homeowner: $1,166, largest modeled factor: Flood

58% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.9% (national: 8.9%)
Diabetes 10.5% (national: 10.5%)
Obesity 31.2% (national: 32.4%)

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

Infrastructure Overview

1974
Median Build Year
58%
Pre-1980 Housing
42/100
Infrastructure Stress Indicator
43%
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: $1,166

Flood $600/yr
Energy Code Gap $501/yr
Wildfire $300/yr

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

Housing Age Distribution

9,063 housing units in Mono County

Pre-1940 11%
1940–1959 11%
1960–1979 36%
1980–1999 31%
2000+ 10%

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

Health Outcomes vs National Average

CDC PLACES data for Mono County residents

Asthma 9.9% (US avg: 8.9%)
Diabetes 10.5% (US avg: 11%)
Obesity 31.2% (US avg: 32.4%)

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

Water systems mapped to Mono County ZIP codes

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

Systems with the most violations in Mono County

2 water systems with violations in EPA records.

All ZIP Codes in Mono County

7 ZIP codes tracked in Mono County.

# ZIP Code City Safety Score Grade Violations Home Value
1 93514 Bishop 83 B 2 $435K
2 93512 Benton — — $279K
3 93517 Bridgeport — — $321K
4 93529 June Lake — — $706K
5 93541 Lee Vining — — $334K
6 96107 Coleville — — $371K
7 96133 Topaz — — —

Recommended Buyer Guides for Mono County

Nothing on this list means a problem exists in your own home: the matches are drawn from county- and ZIP-level records, so a guide shows up because of an area signal, and only testing at your tap describes a specific household.

Overview

Mono County in California covers 7 tracked ZIP records with an average Home Safety Score of B (83/100) across 1 scored records.

1 of 1 ZIP code with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← 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 Mono County?
Mono County receives an average Home Safety grade of B from its scored ZIP records (7 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Mono County?
We map 4 public water systems to 7 ZIP codes in our data for Mono County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Mono County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Mono County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,166 per homeowner; actual costs vary by home.
How old are homes in Mono County?
The median home build year in Mono County is 1974. 58% 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 Mono County compare to California?
Mono County has an average Home Safety Score of 83/100 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). Mono County, CA: HSS 83/100; 2 Violations. https://zipcheckup.com/county/california/mono/
BibTeX
@misc{zipcheckup-county-california-mono,
  author = {{ZipCheckup}},
  title  = {{Mono County, CA: HSS 83/100; 2 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/california/mono/}
}

Page version: October 2026.

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