Nez Perce County, Idaho
6 ZIP codes · Avg score 92/100 · Grade A
ZipCheckup grade for Nez Perce County: A.
Checked records flag no major concern; missing data is unknown.
A high composite grade for Nez Perce County is a summary of data, not a water test, so check the report for your own ZIP code among the 6 listed.
How Nez Perce County Compares
How Nez Perce County Compares
Nez Perce County scores 20 points above the Idaho state average (72/100) and 19 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
ZIP Code Risk Map
Water Quality Map: Nez Perce County, Idaho
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.5 (asthma 11.4%, diabetes 10.8%)
Modeled additional annual cost estimate per homeowner: $887, largest modeled factor: Energy Code Gap
64% 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: $887
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
18,319 housing units in Nez Perce 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 Nez Perce County
Modeled remediation costs in Nez Perce 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 Nez Perce County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Nez Perce County ZIP codes
3 community water systems mapped to Nez Perce County ZIP codes; EPA may list more systems serving the county.
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Systems with the most violations in Nez Perce County
3 water systems with violations in EPA records.
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All ZIP Codes in Nez Perce County
6 ZIP codes tracked in Nez Perce County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 83501 | Lewiston | 92 | A | 54 | $297K |
| 2 | 83524 | Culdesac | — | — | $227K | |
| 3 | 83540 | Lapwai | — | — | $190K | |
| 4 | 83541 | Lenore | — | — | $310K | |
| 5 | 83545 | Peck | — | — | $250K | |
| 6 | 83548 | Reubens | — | — | $153K |
Recommended Buyer Guides for Nez Perce County
Selection follows a fixed set of rules applied to local records: signals such as PFAS detections, lead action-level exceedances on record, a large share of pre-1978 housing, EPA Radon Zone 1, or a top flood or wildfire risk each add a related guide, and when none applies, general water testing and filtration guides are shown instead.
- Best Lead Paint Test Kits — 64% of homes built before 1980
Deep Dive Reports
Detailed analysis for Nez Perce County, Idaho
Overview
Nez Perce County in Idaho covers 6 tracked ZIP records with an average Home Safety Score of A (92/100) across 1 scored records.
1 of 1 ZIP code with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
← Back to Idaho 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.