Lincoln County, Montana
7 ZIP codes · Avg score 57/100 · Grade C · Updated
ZipCheckup grade for Lincoln County: C.
A mixed picture - some signals here are worth your attention.
Within Lincoln County, safety data across 7 ZIP codes suggests a fair but uneven system - violations are present and worth checking at the ZIP level.
How Lincoln County Compares
How Lincoln County Compares
Lincoln County scores 8 points below the Montana state average (65/100) and 16 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: Lincoln County, Montana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.9 (asthma 11.4%, diabetes 14%)
Estimated additional annual cost per homeowner: $1,081, driven primarily by flood
52.1% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↓ Improving trendEPA violation counts by year across Lincoln County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 2 violations. Past 5 years: 5 total (5 health-based). Health-based violations are declining versus the prior 2-year window.
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: $1,081
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
10,993 housing units in Lincoln 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 Lincoln County
Remediation costs are relatively manageable for most homeowners in Lincoln 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 Lincoln County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Lincoln County
2 community water systems serving Lincoln County.
- C
Systems with the most violations in Lincoln County
1 water system with recorded EPA violations.
- C
All ZIP Codes in Lincoln County
7 ZIP codes tracked in Lincoln County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 59923 | Libby | 57 | C | 25 (4 health) | $241K |
| 2 | 59917 | Eureka | — | — | 0 | $295K |
| 3 | 59918 | Fortine | — | — | $287K | |
| 4 | 59930 | Rexford | — | — | 0 | $252K |
| 5 | 59933 | Stryker | — | — | — | |
| 6 | 59934 | Trego | — | — | $302K | |
| 7 | 59935 | Troy | — | — | $279K |
Recommended Buyer Guides for Lincoln County
Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Water Filters for PFAS — PFAS detected in 1 ZIP code
- Best Lead Paint Test Kits — 52.1% of homes built before 1978
- 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
Deep Dive Reports
Detailed analysis for Lincoln County, Montana
Overview
Lincoln County in Montana covers 7 tracked ZIP records with an average Home Safety Score of C (57/100) across 1 scored records.
1 of 3 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 Montana 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.