Colorado — 2nd District
119th Congress · 96 ZIP codes · Avg score 61/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 96 ZIP codes in Colorado's 2nd District: the district earns a grade C (61/100). 880 EPA violations on record, 122 health-based.
Top Contaminants
ZIP Codes in This District
96 ZIP codes tracked in Colorado's 2nd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 81655 | Wolcott | 83 | B | 0 |
| 2 | 81658 | Vail | 83 | B | 0 |
| 3 | 81645 | Minturn | 81 | B | 1 |
| 4 | 81637 | Gypsum | 80 | B | 3 |
| 5 | 80428 | Clark | 79 | B | 5 |
| 6 | 80483 | Yampa | 79 | B | 6 (3 health) |
| 7 | 81632 | Edwards | 78 | B | 6 (4 health) |
| 8 | 81657 | Vail | 78 | B | 0 |
| 9 | 81639 | Hayden | 77 | B | 13 |
| 10 | 80477 | Steamboat Springs | 72 | B | 50 (8 health) |
| 11 | 81649 | Red Cliff | 71 | B | 5 (3 health) |
| 12 | 80447 | Grand Lake | 70 | B | 0 |
| 13 | 80466 | Nederland | 70 | B | 1 |
| 14 | 80442 | Fraser | 69 | C | 3 |
| 15 | 80443 | Frisco | 69 | C | 20 (1 health) |
| 16 | 80482 | Winter Park | 69 | C | 21 (1 health) |
| 17 | 80488 | Steamboat Springs | 69 | C | 50 (8 health) |
| 18 | 80027 | Louisville | 68 | C | 3 (2 health) |
| 19 | 80306 | Boulder | 68 | C | 12 (2 health) |
| 20 | 80308 | Boulder | 68 | C | 12 (2 health) |
| 21 | 80424 | Breckenridge | 68 | C | 14 (2 health) |
| 22 | 80436 | Dumont | 68 | C | 5 |
| 23 | 80467 | Oak Creek | 68 | C | 40 (12 health) |
| 24 | 80444 | Georgetown | 67 | C | 2 |
| 25 | 80476 | Silver Plume | 67 | C | 9 (3 health) |
| 26 | 80487 | Steamboat Springs | 67 | C | 50 (8 health) |
| 27 | 80498 | Silverthorne | 67 | C | 6 |
| 28 | 80422 | Black Hawk | 66 | C | 1 |
| 29 | 80478 | Tabernash | 66 | C | 0 |
| 30 | 80544 | Niwot | 66 | C | 0 |
| 31 | 80438 | Empire | 65 | C | 3 |
| 32 | 80459 | Kremmling | 65 | C | 17 (1 health) |
| 33 | 80502 | Longmont | 65 | C | 3 |
| 34 | 80516 | Erie | 65 | C | 1 |
| 35 | 80522 | Fort Collins | 65 | C | 10 |
| 36 | 80528 | Fort Collins | 65 | C | 10 |
| 37 | 80026 | Lafayette | 64 | C | 9 (1 health) |
| 38 | 80028 | Louisville | 64 | C | 3 (2 health) |
| 39 | 80307 | Boulder | 64 | C | 12 (2 health) |
| 40 | 80309 | Boulder | 64 | C | 12 (2 health) |
| 41 | 80310 | Boulder | 64 | C | 12 (2 health) |
| 42 | 80314 | Boulder | 64 | C | 12 (2 health) |
| 43 | 80321 | Boulder | 64 | C | 12 (2 health) |
| 44 | 80322 | Boulder | 64 | C | 12 (2 health) |
| 45 | 80323 | Boulder | 64 | C | 12 (2 health) |
| 46 | 80328 | Boulder | 64 | C | 12 (2 health) |
| 47 | 80329 | Boulder | 64 | C | 12 (2 health) |
| 48 | 80446 | Granby | 63 | C | 14 |
| 49 | 80451 | Hot Sulphur Springs | 63 | C | 6 |
| 50 | 80452 | Idaho Springs | 63 | C | 5 |
Overview
Colorado's 2nd District encompasses 96 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (61/100).
880 EPA violations have been recorded across this district's water systems. 122 are health-based violations. About 73% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Lead and Copper Rule - 223 violations
- E. coli - 139 violations
- Total Trihalomethanes (TTHM) - 90 violations
- Fecal Coliform - 90 violations
- Stage 1 DBP Rule - 66 violations
Housing Context
Homes in this district were built on average around 1977 (~49 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 96 ZIP codes in Colorado's 2nd District.