Water quality for ZIP code 80021
ZIP 80021 covers Westminster and Broomfield in Jefferson County, Colorado, one of 27 ZIP codes in the county. 113 active public water systems serve the county; 48 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Jefferson County
46 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ralston Valley Wsd |
1,610 | 1 | 5.0 mi | |
| Inspiration Valley MHP |
250 | 0 | 7.5 mi | |
| Valley WD |
10,000 | 0 | 7.5 mi | |
| North Table Mountain Wsd |
10,000 | 0 | 7.7 mi | |
| Wheat Ridge Water District |
20,000 | 0 | 8.4 mi | |
| Blue Mountain WD |
350 | 0 | 8.9 mi | |
| North Lincoln Wsd |
1,000 | 1 | 9.0 mi | |
| Lakewood City of |
6,000 | 0 | 10.3 mi | |
| Edgewater City of |
5,300 | 1 | 10.5 mi | |
| Consolidated Mutual Maple Grove |
81,400 | 0 | 10.9 mi | |
| High View WD |
4,000 | 0 | 11.1 mi | |
| Golden Terrace West Golden |
825 | 1 | 11.5 mi | |
| Golden Terrace South Golden |
425 | 0 | 11.5 mi | |
| Golden City of |
38,288 | 0 | 11.8 mi | |
| Bonvue Water and Sanitation District |
350 | 0 | 12.1 mi | |
| Alameda Wsd |
2,480 | 0 | 13.5 mi | |
| Green Mountain Wsd |
49,400 | 0 | 13.6 mi | |
| Bancroft Clover Wsd |
44,000 | 0 | 13.9 mi | |
| Forest Hills MD Riva Chase |
400 | 1 | 15.2 mi | |
| MT Vernon Country Club |
734 | 2 | 15.2 mi | |
| Mountainside Estates MHP |
473 | 0 | 15.3 mi | |
| Bear Creek Wsd |
30,000 | 0 | 15.7 mi | |
| Genesee Wsd |
3,920 | 0 | 16.6 mi | |
| Idledale Wsd |
350 | 8 | 16.8 mi | |
| Morrison Town of |
9,887 | 2 | 17.2 mi |
Non-community systems in Jefferson County (66: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Jefferson County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Colorado records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.