Yakima County, Washington
25 ZIP codes · Avg score 77/100 · Grade B · Updated
ZipCheckup grade for Yakima County: B.
This ZIP looks solid, with a few items worth a quick check.
The 25 water systems serving Yakima County show strong compliance with federal drinking water standards.
How Yakima County Compares
How Yakima County Compares
Yakima County scores 9 points below the Washington state average (86/100) and 4 points above the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Yakima County, Washington
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.9 (asthma 10.7%, diabetes 12.9%)
Estimated additional annual cost per homeowner: $3,388, driven primarily by sea_level
65.4% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Yakima County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 9 violations. Past 5 years: 13 total (13 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
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $3,388
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
91,149 housing units in Yakima 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 Yakima County
Remediation costs are relatively manageable for most homeowners in Yakima 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 Yakima County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Yakima County
8 community water systems serving Yakima County.
- B
- B
- B
- B
- B
- B
Show all 8 water systems
- B
- B
21 total water systems serve Yakima County.
Systems with the most violations in Yakima County
5 water systems with recorded EPA violations.
- B
- B
- B
- B
- B
All ZIP Codes in Yakima County
25 ZIP codes tracked in Yakima County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 98948 | Toppenish | 83 | B | 2 | $218K |
| 2 | 98937 | Naches | 82 | B | 4 | $343K |
| 3 | 98942 | Selah | 82 | B | 3 (1 health) | $352K |
| 4 | 98944 | Sunnyside | 82 | B | 5 | $230K |
| 5 | 98902 | Yakima | 76 | B | 21 | $238K |
| 6 | 98903 | Yakima | 76 | B | 21 | $266K |
| 7 | 98930 | Grandview | 75 | B | 25 (1 health) | $278K |
| 8 | 98901 | Yakima | 74 | B | 27 (1 health) | $268K |
| 9 | 98908 | Yakima | 74 | B | 26 (1 health) | $357K |
| 10 | 98936 | Moxee | 74 | B | 26 (1 health) | $325K |
| 11 | 98951 | Wapato | 70 | B | 38 (1 health) | $214K |
| 12 | 98904 | Yakima | — | — | — | |
| 13 | 98907 | Yakima | — | — | — | |
| 14 | 98909 | Yakima | — | — | — | |
| 15 | 98920 | Brownstown | — | — | — | |
| 16 | 98921 | Buena | — | — | — | |
| 17 | 98923 | Cowiche | — | — | $228K | |
| 18 | 98932 | Granger | — | — | 3 (1 health) | $230K |
| 19 | 98933 | Harrah | — | — | $225K | |
| 20 | 98935 | Mabton | — | — | $196K | |
| 21 | 98938 | Outlook | — | — | 3 (1 health) | $174K |
| 22 | 98939 | Parker | — | — | — | |
| 23 | 98947 | Tieton | — | — | $240K | |
| 24 | 98952 | White Swan | — | — | $111K | |
| 25 | 98953 | Zillah | — | — | 10 (1 health) | $363K |
Recommended Buyer Guides for Yakima County
If FEMA records flag flood-top-risk status or EPA samples show PFAS exceedances, the matching logic lifts emergency-water and PFAS-rated filtration into the recommendations - federal data drives the order, not retailer arrangements.
- Best Water Filters for PFAS — PFAS detected in 7 ZIP codes
- Best Lead Paint Test Kits — 65.4% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Yakima County, Washington
Overview
Yakima County in Washington covers 25 tracked ZIP records with an average Home Safety Score of B (77/100) across 11 scored records.
14 of 14 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 4 health-based violations appear in the available health breakdown.
← Back to Washington Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.