Trinity County, California
12 ZIP codes · Avg score 83/100 · Grade B
ZipCheckup grade for Trinity County: B.
This ZIP has a few items worth a quick check.
Trinity County earns an A or B, the top two of ZipCheckup's five grades, based on the average composite Home Safety Score of its scored ZIP codes. That composite can draw on drinking water records, radon zones, PFAS monitoring and air quality data, so a strong grade summarizes several sources and is not a reading from anyone's tap. Scores also vary from one ZIP code to another, and the 12 ZIP reports listed for the county show where each one stands.
How Trinity County Compares
How Trinity County Compares
Trinity 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
ZIP Code Risk Map
Water Quality Map: Trinity County, California
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 16.2 (asthma 11%, diabetes 15.9%)
Modeled additional annual cost estimate per homeowner: $4,786, largest modeled factor: Sea Level
54% 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: $4,786
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
7,982 housing units in Trinity 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 Trinity County
Modeled remediation costs in Trinity 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 Trinity County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Trinity County ZIP codes
1 community water system mapped to Trinity County ZIP codes; EPA may list more systems serving the county.
- B
Systems with the most violations in Trinity County
1 water system with violations in EPA records.
- B
All ZIP Codes in Trinity County
12 ZIP codes tracked in Trinity County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 96093 | Weaverville | 83 | B | 1 (1 health) | $336K |
| 2 | 95527 | Burnt Ranch | — | — | $426K | |
| 3 | 95552 | Mad River | — | — | $197K | |
| 4 | 95563 | Salyer | — | — | $581K | |
| 5 | 95595 | Zenia | — | — | $366K | |
| 6 | 96010 | Big Bar | — | — | — | |
| 7 | 96024 | Douglas City | — | — | $370K | |
| 8 | 96041 | Hayfork | — | — | $273K | |
| 9 | 96046 | Hyampom | — | — | — | |
| 10 | 96048 | Junction City | — | — | $401K | |
| 11 | 96052 | Lewiston | — | — | 1 (1 health) | $321K |
| 12 | 96091 | Trinity Center | — | — | 1 (1 health) | $341K |
Recommended Buyer Guides for Trinity 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.
- Best Lead Paint Test Kits — 54% of homes built before 1980
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Trinity County, California
Overview
Trinity County in California covers 12 tracked ZIP records with an average Home Safety Score of B (83/100) across 1 scored records.
3 of 3 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation 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.