Water quality for ZIP code 92129
ZIP 92129 covers San Diego in San Diego County, California, one of 115 ZIP codes in the county. 198 active public water systems serve the county; 83 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 San Diego County
81 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Poway, City of Poway |
49,888 | 0 | 5.5 mi | |
| Santa FE I.d. |
21,539 | 0 | 6.4 mi | |
| Olivenhain Mwd |
86,458 | 0 | 6.6 mi | |
| Del Dios Mutual Water Company |
330 | 3 | 7.5 mi | |
| Del Mar, City of Del Mar |
3,950 | 0 | 7.9 mi | |
| Rincon del Diablo Mwd (id-A) |
5,016 | 0 | 9.1 mi | |
| Rincon del Diablo Mwd (id-1) |
28,427 | 0 | 10.1 mi | |
| San Dieguito WD |
40,405 | 1 | 10.8 mi | |
| San Diego County Water Authority |
0 | 0 | 11.1 mi | |
| Escondido, City of Escondido |
137,044 | 0 | 12.1 mi | |
| Lakeside WD |
35,500 | 1 | 13.1 mi | |
| San Pasqual Academy |
298 | 0 | 13.2 mi | |
| Vallecitos WD |
114,700 | 1 | 13.5 mi | |
| Ramona Municipal WD |
36,455 | 0 | 14.1 mi | |
| Carlsbad Mwd |
96,371 | 0 | 15.1 mi | |
| Helix Water District |
277,918 | 0 | 15.4 mi | |
| Oakvale Park |
260 | 3 | 15.9 mi | |
| Lake Wohlford Resort |
250 | 0 | 16.4 mi | |
| Vista Irrigation District |
134,501 | 0 | 16.7 mi | |
| Padre Dam Mwd |
93,980 | 0 | 17.3 mi | |
| Nas North Island & Nab Coronado |
421 | 0 | 18.9 mi | |
| Valley Center Mwd |
30,166 | 0 | 19.9 mi | |
| Rancho Santa Teresa MW Co. |
102 | 2 | 20.8 mi | |
| Oceanside, City of Oceanside |
174,340 | 0 | 20.8 mi | |
| Sweetwater Authority |
184,915 | 0 | 22.1 mi |
Non-community systems in San Diego County (116: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to San Diego 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.
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 California 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.