Blaine County, Idaho
7 ZIP codes · Avg score 58/100 · Grade C · Updated
ZipCheckup grade for Blaine County: C.
A mixed picture - some signals here are worth your attention.
Water monitoring across Blaine County's 7 ZIP codes paints a mid-range picture - solid compliance in some zones, documented concerns in others; most violations on record are concentrated in specific prior years rather than spread evenly across the full compliance history, and the overall county grade has held steady in the middle tier without major shifts in either direction.
How Blaine County Compares
How Blaine County Compares
Blaine County scores 14 points below the Idaho state average (72/100) and 15 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: Blaine County, Idaho
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11 (asthma 9.9%, diabetes 10.2%)
Estimated additional annual cost per homeowner: $1,986, driven primarily by flood
62.7% of homes built before 1978 (lead paint era)
Violation History (2024–2025)
→ Stable trendEPA violation counts by year across Blaine County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 1 violation. Past 5 years: 2 total (2 health-based).
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: $1,986
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
15,415 housing units in Blaine 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 Blaine County
Remediation costs are relatively manageable for most homeowners in Blaine 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 Blaine County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Blaine County
4 community water systems serving Blaine County.
- C
- C
- C
- C
Systems with the most violations in Blaine County
3 water systems with recorded EPA violations.
- C
- C
- C
All ZIP Codes in Blaine County
7 ZIP codes tracked in Blaine County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 83333 | Hailey | 58 | C | 26 | $688K |
| 2 | 83340 | Ketchum | 58 | C | 28 | $860K |
| 3 | 83353 | Sun Valley | 58 | C | 28 | $829K |
| 4 | 83313 | Bellevue | — | — | $513K | |
| 5 | 83320 | Carey | — | — | $242K | |
| 6 | 83348 | Picabo | — | — | $282K | |
| 7 | 83354 | Sun Valley | — | — | — |
Recommended Buyer Guides for Blaine County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Lead Paint Test Kits — 62.7% 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 Blaine County, Idaho
Overview
Blaine County in Idaho covers 7 tracked ZIP records with an average Home Safety Score of C (58/100) across 3 scored records.
3 of 3 ZIP codes 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.