Sonoma County, California — public water systems
440 active public water systems serve Sonoma County, reporting 481.3K people served.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
440
Population served
481.3K
Community systems
130
Groundwater share
96.8%
Water systems in Sonoma County
| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Santa Rosa, City of | Sonoma | 175,396 | Community | Groundwater |
| 2 | Petaluma, City of | Sonoma | 60,781 | Community | Groundwater |
| 3 | Rohnert Park, City of | Sonoma | 43,821 | Community | Groundwater |
| 4 | Windsor, Town of | Sonoma | 25,561 | Community | Groundwater |
| 5 | Valley of the Moon Water District | Sonoma | 23,107 | Community | Groundwater |
| 6 | Sonoma, City of | Sonoma | 11,725 | Community | Groundwater |
| 7 | Sonoma State University | Sonoma | 10,986 | Community | Groundwater |
| 8 | Healdsburg, City of | Sonoma | 10,985 | Community | Groundwater under influence of surface water |
| 9 | Cloverdale, City of | Sonoma | 10,398 | Community | Groundwater under influence of surface water |
| 10 | California-American Larkfield (Puc) | Sonoma | 7,913 | Community | Groundwater |
| 11 | Sebastopol, City of | Sonoma | 7,522 | Community | Groundwater |
| 12 | Cotati, City of | Sonoma | 7,303 | Community | Groundwater |
| 13 | Sweetwater Springs Cwd - Guerneville | Sonoma | 6,000 | Community | Groundwater |
| 14 | Russian River County Water District | Sonoma | 4,150 | Community | Groundwater |
| 15 | Forestville Water District | Sonoma | 3,788 | Community | Purchased groundwater |
| 16 | Csp-Salt Point State Park | Sonoma | 3,513 | Transient non-community | Groundwater |
| 17 | Csp-Fort Ross State Park | Sonoma | 3,501 | Transient non-community | Groundwater under influence of surface water |
| 18 | Sweetwater Springs Cwd - Monte Rio | Sonoma | 3,000 | Community | Groundwater |
| 19 | Penngrove Water Company (Puc) | Sonoma | 1,742 | Community | Purchased groundwater |
| 20 | Sonoma County Csa 41-Fitch Mountain | Sonoma | 1,265 | Community | Purchased surface water |
| 21 | Camp Meeker Water System | Sonoma | 1,171 | Community | Groundwater |
| 22 | Sea Ranch Water Company,the (Puc) | Sonoma | 1,160 | Community | Surface water |
| 23 | Bodega Bay Public Utility District | Sonoma | 1,069 | Community | Groundwater |
| 24 | California-American Geyserville (Puc) | Sonoma | 1,046 | Community | Groundwater |
| 25 | Kenwood Village Water Company (Puc) | Sonoma | 1,029 | Community | Groundwater |
| 26 | Sutter Santa Rosa Regional Hospital | Sonoma | 1,000 | Non-transient non-community | Groundwater |
| 27 | Canon Manor Water System | Sonoma | 805 | Community | Groundwater |
| 28 | Odd Fellows Recreation Club | Sonoma | 757 | Community | Groundwater |
| 29 | Urj Camp Newman | Sonoma | 705 | Transient non-community | Groundwater under influence of surface water |
| 30 | Moon Valley Water System | Sonoma | 691 | Community | Groundwater |
| 31 | Jehovah'S Witnesses Hall | Sonoma | 650 | Transient non-community | Groundwater |
| 32 | Diamond A Mutual Water Company | Sonoma | 640 | Community | Groundwater |
| 33 | Csp-Armstrong Redwoods State Reserve | Sonoma | 611 | Transient non-community | Groundwater |
| 34 | Korbel Brothers Winery | Sonoma | 546 | Non-transient non-community | Groundwater |
| 35 | Occidental Community Services District | Sonoma | 533 | Community | Groundwater |
| 36 | Cazadero Water Company, Inc.. (Puc) | Sonoma | 525 | Community | Groundwater under influence of surface water |
| 37 | Csp-Wrights Beach State Park | Sonoma | 502 | Transient non-community | Groundwater under influence of surface water |
| 38 | Cline Cellars | Sonoma | 500 | Non-transient non-community | Groundwater |
| 39 | Wright Elementary School | Sonoma | 500 | Non-transient non-community | Groundwater |
| 40 | Oak Grove School | Sonoma | 500 | Non-transient non-community | Groundwater |
| 41 | Armstrong Valley-Cal Water Service (Puc) | Sonoma | 473 | Community | Groundwater |
| 42 | U.S. Coast Guard Training Center | Sonoma | 469 | Community | Purchased groundwater |
| 43 | Willowside School | Sonoma | 460 | Non-transient non-community | Groundwater |
| 44 | Rincon Valley Mobile Estates | Sonoma | 460 | Community | Groundwater |
| 45 | Willowside Mutual Water Company | Sonoma | 448 | Community | Groundwater |
| 46 | Casini Ranch Campground | Sonoma | 442 | Transient non-community | Groundwater |
| 47 | Bennett Ridge Mutual Water Company | Sonoma | 439 | Community | Groundwater |
| 48 | Sereno Del Mar Water Company (Puc) | Sonoma | 435 | Community | Surface water |
| 49 | Sonoma County Csa 41-Salmon Creek | Sonoma | 427 | Community | Surface water |
| 50 | Santa Rosa Mobile Estates | Sonoma | 420 | Community | Groundwater |