Neighborhood Report
Grade B
Twin Falls, ID Neighborhood Water Quality — Grade B
2 ZIP codes · 20 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Twin Falls, ID. We analyzed 2 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (71/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 1 | 50% |
| C | 1 | 50% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Twin Falls ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 83303 | 72 | B | 10 | 0.0010 mg/L |
| 2 | 83301 | 69 | C | 10 | 0.0010 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 2 neighborhoods score worse than county average
EPA Violations
- 20 total violations across Twin Falls
- 6 health-based violations
- 2 of 2 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Barium | 4 | 2 |
| Lead | 4 | 2 |
| Stage 2 DBP Rule | 4 | 2 |
| Contaminant 1925 | 2 | 2 |
| Contaminant 1996 | 2 | 2 |
Frequently Asked Questions
What is the safest neighborhood in Twin Falls?
ZIP code 83303 has the highest safety score in Twin Falls at 72/100 (grade B). Check the full report for details.
Is Twin Falls water safe to drink?
Twin Falls has an average water safety score of 71/100 (B). Water quality varies by neighborhood — no ZIP codes currently exceed EPA lead limits. Always check your specific ZIP code.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Updated daily.