Water quality for ZIP code 80129
ZIP 80129 covers Highlands Ranch and Littleton in Douglas County, Colorado, one of 14 ZIP codes in the county. 74 active public water systems serve the county; 39 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 Douglas County
28 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Highlands Ranch Wsd |
103,444 | 0 | 2.8 mi | |
| View Ridge Mutual WC |
35 | 3 | 3.3 mi | |
| Chatfield South WD |
312 | 0 | 3.4 mi | |
| Dominion Wsd Littleton |
0 | 0 | 4.3 mi | |
| Louviers Wsd |
238 | 3 | 4.8 mi | |
| Roxborough Wsd |
13,765 | 0 | 6.2 mi | |
| Sedalia Wsd |
215 | 1 | 6.5 mi | |
| Castle Pines North MD |
12,800 | 1 | 7.7 mi | |
| Beverly Hills Mutual WC |
325 | 1 | 8.7 mi | |
| Meridian MD |
23,415 | 3 | 8.9 mi | |
| Castle Pines Village MD |
5,656 | 1 | 9.4 mi | |
| Thunderbird Wsd |
490 | 1 | 9.4 mi | |
| Stonegate MD |
15,295 | 0 | 11.1 mi | |
| Silver Heights Wsd |
301 | 0 | 11.4 mi | |
| Parker Wsd |
75,949 | 4 | 11.8 mi | |
| Cottonwood Wsd |
10,867 | 7 | 11.9 mi | |
| Sierra Vista HOA |
120 | 0 | 13.3 mi | |
| Foxhill MD |
123 | 0 | 13.8 mi | |
| Castle Rock Town of |
110,298 | 1 | 14.7 mi | |
| Pinery Wwd |
12,901 | 1 | 15.4 mi | |
| Consolidated Bell Mtn Ranch MD |
1,162 | 1 | 18.4 mi | |
| Perry Park Wsd |
3,890 | 3 | 20.5 mi | |
| Larkspur Town of |
275 | 4 | 22.6 mi | |
| Westcreek Lakes WD |
165 | 8 | 29.0 mi | |
| Sterling Ranch Cab |
11,501 | 2 | — |
Non-community systems in Douglas County (45: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Douglas 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.