Browse Water Systems
20,012 public water systems in CA.
Public Water Systems Database
Browse 20,012 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.
| System Name | PWSID | State | Type | Population Served |
|---|---|---|---|---|
| ALBION RIVER CAMPGROUND | CA2300619 | California | Transient Non-Community | 425 |
| RIVER VILLAGE WATER SYSTEM | CA2701293 | California | Community | 424 |
| VALLEY FARMS MUTUAL WATER CO | CA3600331 | California | Community | 424 |
| USMC - HOUSING COLEVILLE | CA2610701 | California | Community | 424 |
| EAST OROSI COMMUNITY SERVICES DISTRICT | CA5401003 | California | Community | 423 |
| WENTE SCOUT RESERVATION | CA2300842 | California | Transient Non-Community | 422 |
| CENTER JOINT ELEMENTARY SCHOOL | CA3400264 | California | Non-Transient Non-Community | 422 |
| REDWOOD MAINT. & OPER. | CA0800647 | California | Non-Transient Non-Community | 421 |
| LUNDBORG LANDING *CL 2/09 | CA0706047 | California | Community | 420 |
| STAY A WHILE RV PARK | TX1070249 | California | Community | 420 |
| CSP-MANCHESTER STATE PARK | CA2310300 | California | Transient Non-Community | 420 |
| SANTA ROSA MOBILE ESTATES | CA4900796 | California | Community | 420 |
| ARROWHEAD HIGHLAND MUTUAL | CA3600014 | California | Community | 420 |
| FAIRLANE MOBILE LODGE | CA3000594 | California | Community | 420 |
| LOS ROBLES MOBILE HOME ESTATES | CA4000649 | California | Community | 420 |
| SUN VALLEY PACKING | CA5403207 | California | Transient Non-Community | 420 |
| COUNTY WATER OF RIVERSIDE | CA3302093 | California | Community | 420 |
| YOSEMITE WEST WATER SYSTEM | CA2210924 | California | Community | 420 |
| KIT CARSON CAMPGROUND | CA0202527 | California | Transient Non-Community | 420 |
| VILLA DIANN MHP | WI6180290 | California | Community | 420 |
| SKYLONDA MUTUAL | CA4100533 | California | Community | 420 |
| TURLOCK LAKE SRA DAY USE AREA | CA5010301 | California | Transient Non-Community | 420 |
| CARUTHERS UNION HIGH SCHOOL | CA1000386 | California | Non-Transient Non-Community | 420 |
| PINAL WATER CO | CA4510010 | California | Community | 419 |
| SHASTA CSA - FRENCH GULCH, #11 | CA4500317 | California | Community | 419 |
| VILLA DEL MONTE MWC | CA4400595 | California | Community | 419 |
| ALLIANCE REDWOODS CONFERENCE GROUNDS | CA4900943 | California | Community | 418 |
| Big Valley Rancheria Water District | 090605164 | California | Community | 417 |
| SHINGLETOWN STORE WATER SYSTEM | CA4500343 | California | Transient Non-Community | 417 |
| FCSA 05 - WILDWOOD ISLAND | CA1000021 | California | Community | 417 |
| SLIDE INN SNOWBOWL WATER CO | CA5500077 | California | Community | 417 |
| MIRA LOMA WATER COMPANY | CA3301435 | California | Community | 417 |
| SUTTER HOME WINERY | CA2800059 | California | Non-Transient Non-Community | 417 |
| POST RANCH INN WS | CA2702299 | California | Community | 416 |
| ISLAND UNION SCHOOL | CA1600017 | California | Non-Transient Non-Community | 416 |
| RANCHO OSO | CA4200539 | California | Transient Non-Community | 416 |
| SHASTA ELEMENTARY SCHOOL | CA0400074 | California | Transient Non-Community | 415 |
| GUN RIVER MOBILE ESTATES | MI0040011 | California | Community | 415 |
| WHITE OAK MUTUAL WATER COMPANY | CA4500204 | California | Community | 415 |
| FESS PARKER WINERY | CA4200965 | California | Transient Non-Community | 415 |
| YOLO FLIERS CLUB | CA5700652 | California | Non-Transient Non-Community | 415 |
| COUNTRY HILLS RV PARK | CA3301058 | California | Transient Non-Community | 415 |
| SANBORN-SKYLINE COUNTY PARK | CA4300763 | California | Transient Non-Community | 414 |
| LO-FI WINERY | CA4200957 | California | Transient Non-Community | 413 |
| YOSEMITE LAKES CAMPGROUND | CA5500030 | California | Transient Non-Community | 413 |
| OCEAN VIEW SCHOOL | CA5602410 | California | Transient Non-Community | 412 |
| DELFT COLONY WATER | CA5403023 | California | Community | 412 |
| HARBOR FREIGHT TOOLS USA - STORE #839 | IN2430282 | California | Transient Non-Community | 412 |
| SKY VIEW COUNTY WATER | CA5200562 | California | Community | 412 |
| USMC YERMO ANNEX | CA3610702 | California | Non-Transient Non-Community | 411 |