Pend Oreille County, Washington
7 ZIP codes · Avg score 59/100 · Grade C · Updated 2026-06-03
Across Pend Oreille County, EPA compliance data for 7 ZIP codes sits at a moderate level — not alarming, but not uniformly clean either.
How Pend Oreille County Compares
How Pend Oreille County Compares
Pend Oreille County scores 19 points below the Washington state average (78/100) and 9 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Pend Oreille County, Washington
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.8 (asthma 11.4%, diabetes 13.3%)
Estimated additional annual cost per homeowner: $1,496, driven primarily by flood
Infrastructure: 0.349% avg pipe failure probability, 14% of ZIPs at high risk
63.3% 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: $1,496
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
9,534 housing units in Pend Oreille 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 Pend Oreille County
Remediation costs are relatively manageable for most homeowners in Pend Oreille 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 Pend Oreille 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 Pend Oreille County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Whitworth Water District 2 | 26,883 | 15 |
| 2 | City of Deer Park | 5,045 | 15 |
| 3 | Reflection Water Association | 150 | 15 |
| 4 | Aloha Pines Estates Water System | 125 | 15 |
| 5 | Aspen Reflections Landing Water | 49 | 15 |
15 total water systems serve Pend Oreille County.
All ZIP Codes in Pend Oreille County
7 ZIP codes tracked in Pend Oreille County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 99139 | Ione | 70 | B | 1 | $241K |
| 2 | 99152 | Metaline | 68 | C | 2 | $255K |
| 3 | 99009 | Elk | 63 | C | 15 | $402K |
| 4 | 99180 | Usk | 61 | C | 6 | $360K |
| 5 | 99119 | Cusick | 60 | C | 4 | $302K |
| 6 | 99156 | Newport | 51 | D | 10 | $303K |
| 7 | 99153 | Metaline Falls | 40 | D | 0 | $267K |
Recommended Buyer Guides for Pend Oreille 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 — 63.3% of homes built before 1978
- 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 Pend Oreille County, Washington
Overview
Pend Oreille County in Washington covers 7 ZIP codes with an average Home Safety Score of C (59/100).
6 of 7 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.