Chelan County, Washington
13 ZIP codes · Avg score 86/100 · Grade A · Updated 2026-06-03
Spanning 13 ZIP codes, Chelan County posts strong drinking water compliance — most systems have never triggered a health-based notice.
How Chelan County Compares
How Chelan County Compares
Chelan County scores 8 points above the Washington state average (78/100) and 18 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Chelan County, Washington
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.9 (asthma 10.6%, diabetes 10.7%)
Estimated additional annual cost per homeowner: $2,428, driven primarily by wildfire
Infrastructure: 0.361% avg pipe failure probability, 23% of ZIPs at high risk
53.1% of homes built before 1978 (lead paint era)
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: $2,428
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
37,488 housing units in Chelan 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 Chelan County
Remediation costs are relatively manageable for most homeowners in Chelan 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 Chelan County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Chelan County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Lake Chelan Reclamation District | 6,798 | 21 |
| 2 | Chelan Company Pud 1 | 15,840 | 13 |
| 3 | City of Chelan Water Department | 9,425 | 12 |
| 4 | Little Butte Water System | 101 | 12 |
| 5 | Holden Village | 228 | 12 |
26 total water systems serve Chelan County.
All ZIP Codes in Chelan County
13 ZIP codes tracked in Chelan County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 98828 | Malaga | 99 | A | 0 | $382K |
| 2 | 98807 | Wenatchee | 98 | A | 2 | — |
| 3 | 98847 | Peshastin | 95 | A | 0 | $391K |
| 4 | 98822 | Entiat | 93 | A | 2 | $348K |
| 5 | 98816 | Chelan | 91 | A | 12 (1 health) | $451K |
| 6 | 98801 | Wenatchee | 89 | A | 2 | $430K |
| 7 | 98831 | Manson | 88 | A | 9 | $652K |
| 8 | 98821 | Dryden | 87 | A | 0 | — |
| 9 | 98815 | Cashmere | 86 | A | 4 | $493K |
| 10 | 98826 | Leavenworth | 81 | B | 5 | $640K |
| 11 | 98811 | Ardenvoir | 73 | B | 0 | — |
| 12 | 98836 | Monitor | 73 | B | 0 | $408K |
| 13 | 98817 | Chelan Falls | 66 | C | 0 | — |
Recommended Buyer Guides for Chelan County
Strictly editorial — no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Lead Paint Test Kits — 53.1% of homes built before 1978
- Best HEPA Air Purifiers for Wildfire Smoke — Wildfire is the top compound risk factor
Deep Dive Reports
Detailed analysis for Chelan County, Washington
Overview
Chelan County in Washington covers 13 ZIP codes with an average Home Safety Score of A (86/100).
7 of 13 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Washington water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.