Colorado — 8th District
119th Congress · 41 ZIP codes · Avg score 64/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 41 ZIP codes in Colorado's 8th District: the district earns a grade C (64/100). 178 EPA violations on record, 15 health-based.
Top Contaminants
ZIP Codes in This District
41 ZIP codes tracked in Colorado's 8th District.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 80022 | Commerce City | 70 | B | 0 |
| 2 | 80640 | Henderson | 70 | B | 0 |
| 3 | 80644 | Kersey | 70 | B | 1 |
| 4 | 80651 | Platteville | 70 | B | 1 |
| 5 | 80023 | Broomfield | 69 | C | 2 (1 health) |
| 6 | 80031 | Westminster | 69 | C | 12 (1 health) |
| 7 | 80233 | Denver | 69 | C | 3 |
| 8 | 80234 | Denver | 69 | C | 3 |
| 9 | 80260 | Denver | 69 | C | 3 |
| 10 | 80514 | Dacono | 69 | C | 2 (1 health) |
| 11 | 80534 | Johnstown | 69 | C | 6 (1 health) |
| 12 | 80601 | Brighton | 69 | C | 1 (1 health) |
| 13 | 80602 | Brighton | 69 | C | 1 (1 health) |
| 14 | 80603 | Brighton | 69 | C | 1 (1 health) |
| 15 | 80620 | Evans | 69 | C | 2 |
| 16 | 80037 | Commerce City | 66 | C | 0 |
| 17 | 80241 | Thornton | 66 | C | 8 |
| 18 | 80520 | Firestone | 66 | C | 6 |
| 19 | 80614 | Eastlake | 66 | C | 0 |
| 20 | 80623 | Gilcrest | 66 | C | 0 |
| 21 | 80646 | Lucerne | 66 | C | 1 |
| 22 | 80035 | Westminster | 65 | C | 12 (1 health) |
| 23 | 80036 | Westminster | 65 | C | 12 (1 health) |
| 24 | 80543 | Milliken | 65 | C | 4 |
| 25 | 80030 | Westminster | 64 | C | 12 (1 health) |
| 26 | 80221 | Denver | 64 | C | 3 |
| 27 | 80229 | Denver | 64 | C | 3 |
| 28 | 80504 | Longmont | 64 | C | 3 |
| 29 | 80530 | Frederick | 64 | C | 7 (1 health) |
| 30 | 80632 | Greeley | 62 | C | 5 |
| 31 | 80633 | Greeley | 62 | C | 5 |
| 32 | 80638 | Greeley | 62 | C | 5 |
| 33 | 80639 | Greeley | 62 | C | 5 |
| 34 | 80621 | Fort Lupton | 61 | C | 31 (4 health) |
| 35 | 80631 | Greeley | 61 | C | 5 |
| 36 | 80634 | Greeley | 61 | C | 5 |
| 37 | 80542 | Mead | 53 | D | 0 |
| 38 | 80624 | Gill | 53 | D | 0 |
| 39 | 80513 | Berthoud | 51 | D | 8 |
| 40 | 80645 | La Salle | 45 | D | 0 |
| 41 | 80024 | Dupont | 40 | D | 0 |
Overview
Colorado's 8th District encompasses 41 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (64/100).
178 EPA violations have been recorded across this district's water systems. 15 are health-based violations. About 78% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- E. coli - 33 violations
- Lead and Copper Rule - 32 violations
- Fecal Coliform - 21 violations
- Stage 1 DBP Rule - 15 violations
- Contaminant 1009 - 13 violations
Housing Context
Homes in this district were built on average around 1989 (~37 years old). Most homes were built after lead pipe regulations were tightened.
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 41 ZIP codes in Colorado's 8th District.