Idaho Falls, ID Neighborhood Water Quality — Grade B
7 ZIP codes · 77 EPA violations
Data source: EPA SDWIS Last verified: 2026-06-04
Water quality varies significantly across Idaho Falls, ID. We analyzed 7 ZIP codes to help you compare neighborhoods by water safety, lead risk, and EPA compliance.
City Overview: Grade B (72/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 7 | 100% |
| C | 0 | 0% |
| D | 0 | 0% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Idaho Falls ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 83401 | 73 | B | 11 | 0.0040 mg/L |
| 2 | 83402 | 73 | B | 11 | 0.0040 mg/L |
| 3 | 83404 | 73 | B | 11 | 0.0040 mg/L |
| 4 | 83406 | 73 | B | 11 | 0.0040 mg/L |
| 5 | 83403 | 71 | B | 11 | 0.0040 mg/L |
| 6 | 83405 | 71 | B | 11 | 0.0040 mg/L |
| 7 | 83415 | 71 | B | 11 | 0.0040 mg/L |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 4 neighborhoods score better than county average
- 3 neighborhoods score worse than county average
EPA Violations
- 77 total violations across Idaho Falls
- 28 health-based violations
- 7 of 7 ZIP codes have violations
- 0 ZIP codes exceed EPA lead action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Consumer Confidence Report Rule | 28 | 7 |
| Total Coliform | 14 | 7 |
| Combined Radium | 14 | 7 |
| Lead | 7 | 7 |
| Total Organic Carbon | 7 | 7 |
Frequently Asked Questions
What is the safest neighborhood in Idaho Falls?
ZIP code 83401 has the highest safety score in Idaho Falls at 73/100 (grade B). Check the full report for details.
Is Idaho Falls water safe to drink?
Idaho Falls has an average water safety score of 72/100 (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.