In 1990, Sonoma County residents created the Sonoma County Agricultural Preservation and Open Space District to permanently protect the greenbelts, scenic viewsheds, farms and ranches and natural areas of Sonoma County.
Situated on the northern edge of the rapidly urbanizing Bay Area, and facing the loss of the natural and agricultural landscapes that define the county’s rural character, the visionary voters of Sonoma County recognized the need for proactive local funding for agricultural and open space protection.
Sonoma County voters approved Measures A and C to create the District and enable a quarter-cent sales tax to fund District operations until 2011. In 2006, with 76% of the vote, Sonoma County residents approved Measure F to extend the quarter-cent sales tax through 2031.
As one of the first organizations in the country established to protect both agricultural and open space lands, the District has protected over 106,000 acres to benefit people and wildlife.