Clark County, Washington
21 ZIP codes · Avg score 49/100 · Grade D · Updated
ZipCheckup grade for Clark County: D.
Several federal signals point to home-safety risks in this ZIP.
Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →
Clark County's 21 ZIP codes show a poor compliance record - repeated MCL exceedances have kept the county in the bottom tier for water safety.
How Clark County Compares
How Clark County Compares
Clark County scores 37 points below the Washington state average (86/100) and 24 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 Last verified:
ZIP Code Risk Map
Water Quality Map: Clark County, Washington
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.8 (asthma 11.6%, diabetes 9.6%)
Estimated additional annual cost per homeowner: $1,071, driven primarily by flood
42.9% 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
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: $1,071
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
187,527 housing units in Clark 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 Clark County
Remediation costs are relatively manageable for most homeowners in Clark 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 Clark County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Clark County
8 community water systems serving Clark County.
- D
- D
- D
- D
- D
- D
Show all 8 water systems
- D
- D
11 total water systems serve Clark County.
Systems with the most violations in Clark County
5 water systems with recorded EPA violations.
- D
- D
- D
- D
- D
All ZIP Codes in Clark County
21 ZIP codes tracked in Clark County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 98606 | Brush Prairie | 50 | D | 1 | $677K |
| 2 | 98629 | La Center | 50 | D | 1 | $569K |
| 3 | 98660 | Vancouver | 50 | D | 0 | $444K |
| 4 | 98661 | Vancouver | 50 | D | 0 | $425K |
| 5 | 98662 | Vancouver | 50 | D | 1 | $424K |
| 6 | 98663 | Vancouver | 50 | D | 0 | $431K |
| 7 | 98664 | Vancouver | 50 | D | 0 | $442K |
| 8 | 98665 | Vancouver | 50 | D | 1 | $448K |
| 9 | 98685 | Vancouver | 50 | D | 1 | $573K |
| 10 | 98686 | Vancouver | 50 | D | 1 | $546K |
| 11 | 98601 | Amboy | 49 | D | 2 (1 health) | $517K |
| 12 | 98642 | Ridgefield | 49 | D | 2 | $623K |
| 13 | 98675 | Yacolt | 49 | D | 2 (1 health) | $523K |
| 14 | 98604 | Battle Ground | 48 | D | 4 (1 health) | $544K |
| 15 | 98682 | Vancouver | 48 | D | 4 | $442K |
| 16 | 98684 | Vancouver | 48 | D | 3 | $442K |
| 17 | 98607 | Camas | 47 | D | 7 | $649K |
| 18 | 98683 | Vancouver | 46 | D | 8 | $502K |
| 19 | 98666 | Vancouver | — | — | — | |
| 20 | 98668 | Vancouver | — | — | — | |
| 21 | 98687 | Vancouver | — | — | — |
Recommended Buyer Guides for Clark County
While many sites publish identical guide lists across every county they cover, the selection here changes by location - driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- 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 Clark County, Washington
Overview
Clark County in Washington covers 21 tracked ZIP records with an average Home Safety Score of D (49/100) across 18 scored records.
14 of 18 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 1 health-based violation 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.
What You Can Do
Clark County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
42.9% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.