Boulder, CO Home Safety by Neighborhood - Water Issues Recorded
16 ZIP codes · 126 EPA violations
Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow
ZipCheckup compares 16 ZIP codes across Boulder, CO. The area averages a grade C (60/100); 6 ZIP codes carry recorded EPA violations.
Home-safety conditions vary across Boulder, CO. We compared 16 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 C (60/100)
| Grade | Neighborhoods | % |
|---|---|---|
| A | 0 | 0% |
| B | 0 | 0% |
| C | 4 | 80% |
| D | 1 | 20% |
| F | 0 | 0% |
Neighborhood Rankings
Every ZIP code in Boulder ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 80302 | 66 | C | 3 | 0.0020 mg/L |
| 2 | 80304 | 66 | C | 3 | 0.0020 mg/L |
| 3 | 80303 | 60 | C | 17 | 0.0100 mg/L |
| 4 | 80305 | 57 | C | 19 | 0.0020 mg/L |
| 5 | 80301 | 50 | D | 82 | 0.0026 mg/L |
| 6 | 80306 | — | — | — | No data |
| 7 | 80307 | — | — | — | No data |
| 8 | 80308 | — | — | — | No data |
| 9 | 80309 | — | — | — | No data |
| 10 | 80310 | — | — | 2 | 0.0020 mg/L |
| 11 | 80314 | — | — | — | No data |
| 12 | 80321 | — | — | — | No data |
| 13 | 80322 | — | — | — | No data |
| 14 | 80323 | — | — | — | No data |
| 15 | 80328 | — | — | — | No data |
| 16 | 80329 | — | — | — | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
- 3 neighborhoods score better than county average
- 2 neighborhoods score worse than county average
EPA Violations
- 126 total violations across Boulder
- 18 health-based violations
- 6 of 6 directly mapped ZIP records have violations
- 0 of 6 ZIP records with known lead status exceed the EPA action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| E. coli | 39 | 6 |
| Fecal Coliform | 24 | 6 |
| Lead and Copper Rule | 10 | 1 |
| Total Trihalomethanes (TTHM) | 7 | 2 |
| Haloacetic Acids (HAA5) | 7 | 2 |
Frequently Asked Questions
What is the safest neighborhood in Boulder?
ZIP code 80302 has the highest safety score in Boulder at 66/100 (grade C). Check the full report for details.
Is Boulder water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 6 directly mapped ZIP records, 126 EPA violations are recorded; 0 of 6 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.