Water quality for ZIP code 86303
ZIP 86303 covers Prescott, Prescott Valley, and Dewey-Humboldt in Yavapai County, Arizona, one of 28 ZIP codes in the county. 238 active public water systems serve the county; 162 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Yavapai County
105 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Groom Creek Water Users Groom Creek |
458 | 0 | 1.8 mi | |
| Ponderosa Park Dwid Prescott |
602 | 5 | 1.8 mi | |
| Sherman Pines Water Company Sherman Pines |
110 | 3 | 2.6 mi | |
| Beverly Gardens Trailer Park Prescott |
120 | 4 | 5.4 mi | |
| Jackson Acres Dwid Prescott |
30 | 2 | 6.3 mi | |
| Prescott City of Prescott |
42,217 | 4 | 6.6 mi | |
| Bradshaw Water Company INC Prescott |
510 | 4 | 7.0 mi | |
| Highland Pine Dwid Prescott |
450 | 4 | 7.1 mi | |
| Diamond Valley Water District Prescott |
2,000 | 1 | 7.3 mi | |
| Acme Water -Dells Water Prescott |
163 | 1 | 7.6 mi | |
| Lakeside Water Company Prescott |
55 | 0 | 7.8 mi | |
| Granite Dells Water Company Prescott |
50 | 2 | 7.9 mi | |
| Walden Meadows Comm Coop Wilhoit |
880 | 1 | 8.6 mi | |
| Holiday Hills Dwid Prescott |
150 | 1 | 9.6 mi | |
| Granite Mountain Water Company Prescott |
381 | 5 | 10.6 mi | |
| Town of Prescott Valley Prescott Valley |
57,048 | 1 | 11.2 mi | |
| Ventura Ranch Dwid Prescott Valley |
300 | 6 | 11.4 mi | |
| Granite Oaks Water Users Association Prescott |
1,200 | 5 | 12.2 mi | |
| Mayer Dwid Mayer |
1,400 | 7 | 12.6 mi | |
| Acme Water Blue Hills Cottonwood |
138 | 1 | 12.9 mi | |
| Softwinds Mobile Home Park Dewey |
70 | 5 | 13.0 mi | |
| Humboldt Water System Humboldt |
830 | 1 | 13.1 mi | |
| American Ranch Dwid Prescott |
140 | 5 | 13.7 mi | |
| Rancho Vida RV Park Kirkland |
57 | 3 | 14.8 mi | |
| Chimney Estates Mayer |
90 | 6 | 15.0 mi |
Non-community systems in Yavapai County (132: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Yavapai 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 or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision 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 Arizona 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.