Clallam County, Washington
15 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-03
Although county size varies, Clallam County's 15 ZIP codes share reliably safe tap water records and above-average compliance scores.
How Clallam County Compares
How Clallam County Compares
Clallam 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: Clallam County, Washington
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.3 (asthma 11.2%, diabetes 11.8%)
Estimated additional annual cost per homeowner: $1,243, driven primarily by sea_level
Infrastructure: 0.385% avg pipe failure probability, 33% of ZIPs at high risk
58% 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: $1,243
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
40,770 housing units in Clallam 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 Clallam County
Remediation costs are relatively manageable for most homeowners in Clallam 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 Clallam 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 Clallam County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Port Angeles Composite | 9,879 | 13 |
| 2 | City of Port Angeles | 28,946 | 12 |
| 3 | Dry Creek Water Association | 3,030 | 12 |
| 4 | Black Diamond Water District | 452 | 12 |
| 5 | Pleasant Tides Water Company Op | 131 | 12 |
28 total water systems serve Clallam County.
All ZIP Codes in Clallam County
15 ZIP codes tracked in Clallam County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 98305 | Beaver | 99 | A | 1 | $266K |
| 2 | 98324 | Carlsborg | 98 | A | 2 | — |
| 3 | 98343 | Joyce | 98 | A | 2 | — |
| 4 | 98381 | Sekiu | 93 | A | 2 | $204K |
| 5 | 98363 | Port Angeles | 91 | A | 6 | $339K |
| 6 | 98331 | Forks | 90 | A | 1 | $195K |
| 7 | 98382 | Sequim | 88 | A | 5 | $464K |
| 8 | 98362 | Port Angeles | 86 | A | 6 | $368K |
| 9 | 98326 | Clallam Bay | 73 | B | 0 | $284K |
| 10 | 98339 | Port Hadlock | 73 | B | 0 | $386K |
| 11 | 98357 | Neah Bay | 66 | C | 0 | $161K |
| 12 | 98358 | Nordland | 66 | C | 0 | $561K |
| 13 | 98378 | Retsil | 66 | C | 0 | — |
| 14 | 98384 | South Colby | 66 | C | 0 | — |
| 15 | 98386 | Southworth | 66 | C | 0 | — |
Recommended Buyer Guides for Clallam County
Editorial-only picks, screened against the EPA detections on file.
- Best Lead Paint Test Kits — 58% of homes built before 1978
Deep Dive Reports
Detailed analysis for Clallam County, Washington
Overview
Clallam County in Washington covers 15 ZIP codes with an average Home Safety Score of B (81/100).
8 of 15 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.