Water quality for ZIP code 80521
ZIP 80521 covers Fort Collins in Larimer County, Colorado, one of 18 ZIP codes in the county. 138 active public water systems serve the county; 85 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 Larimer County
46 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Csu Main and West Housing Campus |
27,375 | 5 | 2.6 mi | |
| West Fort Collins WD |
4,000 | 0 | 2.8 mi | |
| FT Collins City of |
179,901 | 4 | 3.4 mi | |
| Northern Colorado WA |
4,675 | 0 | 3.5 mi | |
| Spring Canyon Wsd |
2,320 | 0 | 5.0 mi | |
| East Larimer County WD |
27,944 | 1 | 6.1 mi | |
| FT Collins Loveland WD |
63,532 | 0 | 8.9 mi | |
| Wellington Town of |
11,720 | 5 | 9.7 mi | |
| Eden Valley Institute |
91 | 11 | 10.6 mi | |
| Sunrise Ranch |
75 | 4 | 11.0 mi | |
| Riverview CG |
450 | 3 | 12.0 mi | |
| Lago Vista Mobile Home Park Loveland |
842 | 4 | 12.6 mi | |
| Loveland City of |
91,077 | 0 | 12.9 mi | |
| North Carter Lake WD |
328 | 1 | 16.9 mi | |
| Newell Warnock WA |
160 | 1 | 17.8 mi | |
| Consolidated Glacier View Meadows Assoc |
395 | 3 | 18.5 mi | |
| Berthoud Town of |
14,211 | 0 | 19.3 mi | |
| Little Thompson WD |
25,654 | 0 | 19.6 mi | |
| Pinewood Springs WD |
745 | 6 | 24.8 mi | |
| Estes Park Town of |
16,722 | 1 | 25.8 mi | |
| Rmnp Headquarters East |
900 | 2 | 27.4 mi | |
| Shambhala Mountain Center |
90 | 2 | 27.5 mi | |
| Big Elk Meadows WA |
405 | 4 | 27.7 mi | |
| YMCA Rockies Wind River |
3,730 | 7 | 28.3 mi | |
| Annunciation Heights |
260 | 2 | 31.6 mi |
Non-community systems in Larimer County (91: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Larimer 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.