Sioux City, IA Home Safety by Neighborhood - Water Issues Recorded
9 ZIP codes · 14 EPA violations
Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow
ZipCheckup compares 9 ZIP codes across Sioux City, IA. The area averages a grade D (49/100); 7 ZIP codes carry recorded EPA violations.
Home-safety conditions vary across Sioux City, IA. We compared 9 ZIP codes using the current versioned Home Safety Score. Water compliance remains one component alongside PFAS screening, radon, and annual air quality.
City Overview: Grade D (49/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 0 | 0% |
| D | 6 | 100% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Sioux City ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 51101 | 49 | D | 2 | 0.0020 mg/L |
| 2 | 51103 | 49 | D | 2 | 0.0020 mg/L |
| 3 | 51104 | 49 | D | 2 | 0.0020 mg/L |
| 4 | 51105 | 49 | D | 2 | 0.0020 mg/L |
| 5 | 51106 | 49 | D | 2 | 0.0040 mg/L |
| 6 | 51108 | 49 | D | 2 | 0.0020 mg/L |
| 7 | 51102 | — | — | — | No data |
| 8 | 51109 | — | — | 2 | 0.0020 mg/L |
| 9 | 51111 | — | — | — | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 0 neighborhoods score better than county average
- 6 neighborhoods score worse than county average
EPA Violations
- 14 total violations across Sioux City
- 0 health-based violations
- 7 of 7 directly mapped ZIP records have violations
- 0 of 7 ZIP records with known lead status exceed the EPA action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Total Trihalomethanes (TTHM) | 7 | 7 |
| Haloacetic Acids (HAA5) | 7 | 7 |
Frequently Asked Questions
What is the safest neighborhood in Sioux City?
ZIP code 51101 has the highest safety score in Sioux City at 49/100 (grade D). Check the full report for details.
Is Sioux City water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 7 directly mapped ZIP records, 14 EPA violations are recorded; 0 of 7 records with known lead status exceed the action level. Check the specific ZIP and serving system before drawing a property-level conclusion.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Reporting periods vary by source; the page metadata identifies this materialization.