Grant County, Washington
16 ZIP codes · Avg score 70/100 · Grade B
ZipCheckup grade for Grant County: B.
This ZIP has a few items worth a quick check.
Grant County: upper grades, 16 ZIPs.
How Grant County Compares
How Grant County Compares
Grant County scores 16 points below the Washington state average (86/100) and 3 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Grant County, Washington
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.6 (asthma 10.8%, diabetes 11.5%)
Modeled additional annual cost estimate per homeowner: $809, largest modeled factor: Energy Code Gap
44% of homes built before 1980 (lead paint was banned for residential use in 1978)
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 DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $809
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
38,490 housing units in Grant 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 Grant County
Modeled remediation costs in Grant County can be compared with the median property value; actual costs vary by property.
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 Grant County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Grant County ZIP codes
8 community water systems mapped to Grant County ZIP codes; EPA may list more systems serving the county.
- D
- C
- C
- C
- C
- B
Show all 8 water systems
- B
- C
15 water systems mapped to Grant County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Grant County
5 water systems with violations in EPA records.
- C
- D
- C
- C
- D
All ZIP Codes in Grant County
16 ZIP codes tracked in Grant County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 98857 | Warden | 83 | B | 0 | $194K |
| 2 | 99349 | Mattawa | 82 | B | 2 (1 health) | $409K |
| 3 | 98823 | Ephrata | 68 | C | 48 | $256K |
| 4 | 98848 | Quincy | 67 | C | 132 (2 health) | $309K |
| 5 | 98837 | Moses Lake | 50 | D | 57 | $290K |
| 6 | 98824 | George | — | — | $180K | |
| 7 | 98832 | Marlin | — | — | $259K | |
| 8 | 98851 | Soap Lake | — | — | 1 | $241K |
| 9 | 98853 | Stratford | — | — | — | |
| 10 | 98860 | Wilson Creek | — | — | $184K | |
| 11 | 99115 | Coulee City | — | — | $208K | |
| 12 | 99123 | Electric City | — | — | $248K | |
| 13 | 99133 | Grand Coulee | — | — | $221K | |
| 14 | 99135 | Hartline | — | — | $198K | |
| 15 | 99321 | Beverly | — | — | — | |
| 16 | 99357 | Royal City | — | — | $307K |
Recommended Buyer Guides for Grant County
Up to five guides, picked by rule.
- Water Filters Certified for PFAS Reduction — PFAS detected in 3 ZIP codes
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Grant County, Washington
Overview
Grant County in Washington covers 16 tracked ZIP records with an average Home Safety Score of B (70/100) across 5 scored records.
5 of 6 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 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.