Sonoma County, California, United States

Overview of Sonoma County

• Name:
  Sonoma County
• Place Type:
  County
• Located In:
  California, United States
  
• History (GNIS):
  Established 18 February 1850
• County Seat:
  Santa Rosa
• Coordinates:
  Latitude:38.550000038° 33' 00.0"N

  Longitude:-122.9011111122° 54' 04.0"W
• Population:
  388,222
• Elevation:
  166 m
• Surrounding Counties:
  • Lake N
  • Napa E
  • Solano SE
  • Contra Costa SE
  • Marin S
  • Mendocino NW
• Histopolis Place ID:
  633269985
• Updated May 5, 2020