Skagit County, Washington
16 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-03
Water utilities serving Skagit County's 16 ZIP codes have built a consistent compliance record — the county's above-average grade reflects years of data showing low violation rates and no systemic health concerns.
How Skagit County Compares
How Skagit County Compares
Skagit County scores 3 points above the Washington state average (78/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Skagit County, Washington
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.4 (asthma 11%, diabetes 10.8%)
Estimated additional annual cost per homeowner: $2,328, driven primarily by flood
Infrastructure: 0.372% avg pipe failure probability, 25% of ZIPs at high risk
59.9% 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: $2,328
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
93,787 housing units in Skagit 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 Skagit County
Remediation costs are relatively manageable for most homeowners in Skagit 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 Skagit 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 Skagit County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | SKAGIT COUNTY PUD 1 JUDY RES | 111,415 | 9 |
| 2 | Cascade River Community Club | 107 | 6 |
| 3 | City of Anacortes | 21,105 | 5 |
| 4 | Skagit Company Water District #1 | 1,974 | 5 |
| 5 | Samish Farms Water Assn | 1,017 | 4 |
28 total water systems serve Skagit County.
All ZIP Codes in Skagit County
16 ZIP codes tracked in Skagit County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 98101 | Seattle | 95 | A | 1 | $741K |
| 2 | 98221 | Anacortes | 95 | A | 1 | $660K |
| 3 | 98283 | Rockport | 95 | A | 1 | $309K |
| 4 | 98274 | Mount Vernon | 94 | A | 2 | $492K |
| 5 | 98225 | Bellingham | 88 | A | 2 | $589K |
| 6 | 98257 | La Conner | 88 | A | 2 | $481K |
| 7 | 98232 | Bow | 84 | B | 2 | $714K |
| 8 | 98284 | Sedro Woolley | 80 | B | 0 | $428K |
| 9 | 98273 | Mount Vernon | 79 | B | 2 | $448K |
| 10 | 98233 | Burlington | 77 | B | 0 | $466K |
| 11 | 98255 | Hamilton | 77 | B | 0 | $206K |
| 12 | 98238 | Conway | 73 | B | 0 | — |
| 13 | 98263 | Lyman | 73 | B | 0 | $386K |
| 14 | 98267 | Marblemount | 70 | B | 6 | $299K |
| 15 | 98235 | Clearlake | 65 | C | 0 | $503K |
| 16 | 98237 | Concrete | 62 | C | 1 | $341K |
Recommended Buyer Guides for Skagit County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 59.9% of homes built before 1978
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Skagit County, Washington
Overview
Skagit County in Washington covers 16 ZIP codes with an average Home Safety Score of B (81/100).
10 of 16 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← 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.