Twin Falls County, Idaho
9 ZIP codes · Avg score 76/100 · Grade B
ZipCheckup grade for Twin Falls County: B.
This ZIP has a few items worth a quick check.
A high composite grade for Twin Falls County is a summary of data, not a water test, so check the report for your own ZIP code among the 9 listed.
How Twin Falls County Compares
How Twin Falls County Compares
Twin Falls County scores 4 points above the Idaho state average (72/100) and 3 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: Twin Falls County, Idaho
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.3 (asthma 11.1%, diabetes 11%)
Modeled additional annual cost estimate per homeowner: $777, largest modeled factor: Flood
50% 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: $777
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
35,224 housing units in Twin Falls 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 Twin Falls County
Modeled remediation costs in Twin Falls 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 Twin Falls County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Twin Falls County ZIP codes
4 community water systems mapped to Twin Falls County ZIP codes; EPA may list more systems serving the county.
- B
- B
- B
- B
Systems with the most violations in Twin Falls County
4 water systems with violations in EPA records.
- B
- B
- B
- B
All ZIP Codes in Twin Falls County
9 ZIP codes tracked in Twin Falls County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 83301 | Twin Falls | 76 | B | 19 (2 health) | $291K |
| 2 | 83316 | Buhl | 75 | B | 22 (2 health) | $248K |
| 3 | 83302 | Rogerson | — | — | $140K | |
| 4 | 83303 | Twin Falls | — | — | — | |
| 5 | 83321 | Castleford | — | — | $200K | |
| 6 | 83328 | Filer | — | — | 16 (2 health) | $294K |
| 7 | 83334 | Hansen | — | — | $228K | |
| 8 | 83341 | Kimberly | — | — | 3 | $412K |
| 9 | 83344 | Murtaugh | — | — | $323K |
Recommended Buyer Guides for Twin Falls County
When no specific signal shows up in the records, the list falls back to general water testing and filtration guides rather than staying empty.
- Best Lead Paint Test Kits — 50% of homes built before 1980
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- 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 Twin Falls County, Idaho
Overview
Twin Falls County in Idaho covers 9 tracked ZIP records with an average Home Safety Score of B (76/100) across 2 scored records.
4 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 health-based violations appear in the available health breakdown.
← 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.