Search our interactive map of Sonoma County vineyards (2013)
Search our interactive map of Sonoma County vineyards Click on a parcel for more information, search by owner name and Top Ten Group.
Dark purple= Properties owned by the Top 10 companies that own the most vineyard land, Light Purple= all vineyards
To identify the largest vineyard owners in Sonoma County, The Press Democrat analyzed land records on 3,171 vineyard properties obtained from the Sonoma County Assessor's Office, which were updated in August 2013. The locations of the vineyard parcels were mapped using GIS data from the Sonoma County Information Systems Department.
Ownership groups that hold properties under multiple names were identified by interviews with wine industry sources and a Press Democrat analysis of property tax data from the Assessor's Office and pesticide application reports filed with the Sonoma County Agricultural Commissioner's Office.
The group "Jackson Family Wines & Affiliates" includes properties owned by Jackson Family Wines and its affiliated companies, executives and family members.