Douglas County, Nevada
9 ZIP codes · Avg score 61/100 · Grade C · Updated
ZipCheckup grade for Douglas County: C.
A mixed picture - some signals here are worth your attention.
Covering 9 ZIP codes, Douglas County falls in the average tier for tap water safety - violations appear in a meaningful share of areas, and the data suggests quality depends heavily on which specific part of the county a household sits in.
How Douglas County Compares
How Douglas County Compares
Douglas County scores 23 points below the Nevada state average (84/100) and 12 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Douglas County, Nevada
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.4 (asthma 10.1%, diabetes 12.2%)
Estimated additional annual cost per homeowner: $2,349, driven primarily by wildfire
48% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Douglas County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 9 violations. Past 5 years: 17 total (17 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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 DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $2,349
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
25,320 housing units in Douglas 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 Douglas County
Remediation costs are relatively manageable for most homeowners in Douglas County, representing a small fraction of property value.
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 Douglas County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Douglas County
8 community water systems serving Douglas County.
- C
- C
- C
- C
- D
- C
Show all 8 water systems
- C
13 total water systems serve Douglas County.
Systems with the most violations in Douglas County
5 water systems with recorded EPA violations.
- C
- D
- C
- D
- D
All ZIP Codes in Douglas County
9 ZIP codes tracked in Douglas County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 89423 | Minden | 67 | C | 103 | $647K |
| 2 | 89705 | Carson City | 67 | C | 0 | $456K |
| 3 | 89460 | Gardnerville | 64 | C | 4 | $486K |
| 4 | 89410 | Gardnerville | 57 | C | 24 (1 health) | $588K |
| 5 | 89449 | Stateline | 50 | D | 60 (4 health) | $791K |
| 6 | 89411 | Genoa | — | — | $1067K | |
| 7 | 89413 | Glenbrook | — | — | 37 (1 health) | $2000K |
| 8 | 89444 | Wellington | — | — | 19 (1 health) | $445K |
| 9 | 89448 | Zephyr Cove | — | — | 62 (5 health) | $1337K |
Recommended Buyer Guides for Douglas County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations - federal data drives the order, not retailer arrangements.
- Best Water Filters for PFAS — PFAS detected in 1 ZIP code
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Douglas County, Nevada
Overview
Douglas County in Nevada covers 9 tracked ZIP records with an average Home Safety Score of C (61/100) across 5 scored records.
7 of 8 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 Nevada 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.