Nevada County, California
13 ZIP codes · Avg score 79/100 · Grade B
ZipCheckup grade for Nevada County: B.
This ZIP has a few items worth a quick check.
Nevada 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 13 ZIP reports listed for the county show where each one stands.
How Nevada County Compares
How Nevada County Compares
Nevada County scores 3 points above the California state average (76/100) and 6 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: Nevada County, California
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.9 (asthma 10.2%, diabetes 11.5%)
Modeled additional annual cost estimate per homeowner: $1,922, largest modeled factor: Wildfire
41% 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: $1,922
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
54,240 housing units in Nevada 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 Nevada County
Modeled remediation costs in Nevada 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 Nevada County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Nevada County ZIP codes
8 community water systems mapped to Nevada County ZIP codes; EPA may list more systems serving the county.
- C
- B
- C
- B
- B
- B
Show all 8 water systems
- C
- B
12 water systems mapped to Nevada County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Nevada County
1 water system with violations in EPA records.
- B
All ZIP Codes in Nevada County
13 ZIP codes tracked in Nevada County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 95945 | Grass Valley | 83 | B | 1 (1 health) | $497K |
| 2 | 95946 | Penn Valley | 83 | B | 0 | $534K |
| 3 | 95949 | Grass Valley | 83 | B | 0 | $552K |
| 4 | 96161 | Truckee | 67 | C | 0 | $922K |
| 5 | 95712 | Chicago Park | — | — | — | |
| 6 | 95724 | Norden | — | — | — | |
| 7 | 95924 | Cedar Ridge | — | — | — | |
| 8 | 95959 | Nevada City | — | — | 1 (1 health) | $603K |
| 9 | 95960 | North San Juan | — | — | 0 | $283K |
| 10 | 95975 | Rough And Ready | — | — | 0 | $582K |
| 11 | 95986 | Washington | — | — | — | |
| 12 | 96111 | Floriston | — | — | — | |
| 13 | 96160 | Truckee | — | — | — |
Recommended Buyer Guides for Nevada County
Which guides appear depends on what the county data show.
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Nevada County, California
Overview
Nevada County in California covers 13 tracked ZIP records with an average Home Safety Score of B (79/100) across 4 scored records.
2 of 7 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.