Winchester County, Virginia
1 ZIP code · Avg score 67/100 · Grade C · Updated 2026-06-03
Covering 1 ZIP code, Winchester 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 Winchester County Compares
How Winchester County Compares
Winchester County scores 1 points above the Virginia state average (66/100) and 1 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 14 (asthma 10.9%, diabetes 14.2%)
Estimated additional annual cost per homeowner: $1,780, driven primarily by sea_level
Infrastructure: 0.3% avg pipe failure probability
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,780
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Health Outcomes vs National Average
CDC PLACES data for Winchester County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 4 systems in Winchester County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Frederick Water | 46,206 | 3 |
| 2 | City of Winchester, | 28,248 | 3 |
| 3 | Tavenner Park | 228 | 3 |
| 4 | Grafton School | 123 | 3 |
All ZIP Codes in Winchester County
1 ZIP code tracked in Winchester County.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 22604 | Winchester | 67 | C | 3 |
Recommended Buyer Guides for Winchester County
Filtered against federal data, fitted to local risks.
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Overview
Winchester County in Virginia covers 1 ZIP code with an average Home Safety Score of C (67/100).
1 of 1 ZIP code have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Virginia water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
Updated daily.