Tuolumne County, California
15 ZIP codes · Avg score 74/100 · Grade B
ZipCheckup grade for Tuolumne County: B.
This ZIP has a few items worth a quick check.
15 ZIP codes, one county grade: Tuolumne County scores in ZipCheckup's upper tier.
How Tuolumne County Compares
How Tuolumne County Compares
Tuolumne County scores 2 points below the California state average (76/100) and 1 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
ZIP Code Risk Map
Water Quality Map: Tuolumne County, California
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.2 (asthma 10.3%, diabetes 12.1%)
Modeled additional annual cost estimate per homeowner: $2,041, largest modeled factor: Wildfire
52% of homes built before 1980 (lead paint was banned for residential use in 1978)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
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: $2,041
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
30,405 housing units in Tuolumne County
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 Tuolumne County
Modeled remediation costs in Tuolumne 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 Tuolumne County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Tuolumne County ZIP codes
8 community water systems mapped to Tuolumne County ZIP codes; EPA may list more systems serving the county.
- B
- B
- B
- C
- B
- B
Show all 8 water systems
- B
- B
14 water systems mapped to Tuolumne County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Tuolumne County
5 water systems with violations in EPA records.
- C
- B
- B
- B
All ZIP Codes in Tuolumne County
15 ZIP codes tracked in Tuolumne County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 95310 | Columbia | 83 | B | 1 | $449K |
| 2 | 95372 | Soulsbyville | 83 | B | 1 | $354K |
| 3 | 95379 | Tuolumne | 83 | B | 1 | $405K |
| 4 | 95327 | Jamestown | 77 | B | 8 (1 health) | $367K |
| 5 | 95370 | Sonora | 76 | B | 13 (1 health) | $416K |
| 6 | 95383 | Twain Harte | 70 | B | 13 (2 health) | $454K |
| 7 | 95321 | Groveland | 61 | C | 5 (3 health) | $377K |
| 8 | 95305 | Big Oak Flat | 56 | C | 10 (4 health) | — |
| 9 | 95309 | Chinese Camp | — | — | — | |
| 10 | 95335 | Long Barn | — | — | $248K | |
| 11 | 95346 | Mi Wuk Village | — | — | 12 (2 health) | $516K |
| 12 | 95347 | Moccasin | — | — | — | |
| 13 | 95364 | Pinecrest | — | — | — | |
| 14 | 95373 | Standard | — | — | — | |
| 15 | 95375 | Strawberry | — | — | — |
Recommended Buyer Guides for Tuolumne County
The mix of guides changes from county to county.
- Best Lead Paint Test Kits — 52% of homes built before 1980
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Tuolumne County, California
Overview
Tuolumne County in California covers 15 tracked ZIP records with an average Home Safety Score of B (74/100) across 8 scored records.
9 of 9 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 7 health-based violations appear in the available health breakdown.
← Back to California Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.