Klickitat County, Washington
15 ZIP codes · Avg score 63/100 · Grade C · Updated 2026-06-03
Across Klickitat County, EPA compliance data for 15 ZIP codes sits at a moderate level — not alarming, but not uniformly clean either.
How Klickitat County Compares
How Klickitat County Compares
Klickitat County scores 15 points below the Washington state average (78/100) and 5 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Klickitat 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 (asthma 11.3%, diabetes 11.6%)
Estimated additional annual cost per homeowner: $935, driven primarily by energy_code_gap
Infrastructure: 0.418% avg pipe failure probability, 53% of ZIPs at high risk
59.4% of homes built before 1978 (lead paint era)
Violation History (2021–2022)
→ Stable trendEPA violation counts by year across Klickitat County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 1 violation. Past 5 years: 2 total (2 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $935
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
10,628 housing units in Klickitat 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 Klickitat County
Remediation costs are relatively manageable for most homeowners in Klickitat 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 Klickitat 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 Klickitat County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | GLACIER SPRINGS WATER ASSN | 992 | 11 |
| 2 | City of White Salmon | 4,077 | 9 |
| 3 | Mt Adams Orchard Division-Camp B | 265 | 9 |
| 4 | Mountain View | 72 | 9 |
| 5 | FORDYCE WATER ASSN | 300 | 4 |
18 total water systems serve Klickitat County.
All ZIP Codes in Klickitat County
15 ZIP codes tracked in Klickitat County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 98617 | Dallesport | 83 | B | 1 | $363K |
| 2 | 98650 | Trout Lake | 82 | B | 2 | $670K |
| 3 | 98620 | Goldendale | 81 | B | 2 | $252K |
| 4 | 98623 | Husum | 78 | B | 4 | — |
| 5 | 98672 | White Salmon | 78 | B | 9 (2 health) | $623K |
| 6 | 98635 | Lyle | 63 | C | 0 | $486K |
| 7 | 98628 | Klickitat | 55 | C | 0 | $185K |
| 8 | 98602 | Appleton | 53 | D | 0 | $360K |
| 9 | 98613 | Centerville | 53 | D | 0 | $326K |
| 10 | 98619 | Glenwood | 53 | D | 0 | $271K |
| 11 | 98651 | Underwood | 53 | D | 0 | $571K |
| 12 | 98670 | Wahkiacus | 53 | D | 0 | $289K |
| 13 | 98673 | Wishram | 53 | D | 0 | $161K |
| 14 | 99345 | Paterson | 53 | D | 0 | $422K |
| 15 | 99356 | Roosevelt | 53 | D | 0 | $370K |
Recommended Buyer Guides for Klickitat County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Lead Paint Test Kits — 59.4% of homes built before 1978
Deep Dive Reports
Detailed analysis for Klickitat County, Washington
Overview
Klickitat County in Washington covers 15 ZIP codes with an average Home Safety Score of C (63/100).
5 of 15 ZIP codes have recorded EPA violations. 2 health-based violations 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.