Sonoma Water manages and maintains a water supply and transmission system that provides naturally filtered Russian River water to nine cities and special districts that in turn delivers drinking water to more than 600,000 residents in portions of Sonoma and Marin counties. You receive your drinking water and water bill from your local city or water district. Sonoma Water provides drinking water to the following cities and special districts:  

City of Santa Rosa

Town of Windsor

Marin Municipal Water District

City of Cotati

City of Sonoma

City of Rohnert Park

Valley of the Moon Water District

City of Petaluma

North Marin Water District

Water Delivery Data