The number of acres planted with grapevines decreased slightly in Sonoma County last year, according to the California Grape Acreage Report released by the government on Tuesday.

Sonoma County's total planted acres dropped from 57,149 acres in 2009 to 57,055 last year, according to the report.

Statewide, the amount of grapes planted grew less than 1 percent, increasing from 531,000 acres in 2009 to 535,000 acres last year. Red grapes continue to be the most widely planted in the state and Sonoma County.

In the county, 19,043 acres were planted with white varietals — up from 18,946 acres the year before. But red grapes planted were down, from 38,203 acres in 2009 to 38,012 last year.

The full report, which breaks down winegrape acreage by county and varietal, is available online at

— Compiled by Nathan Halverson. Send news tips and press releases to