Annapolis is an unincorporated community in Sonoma County, California, United States. Annapolis is situated near the coastline of northern Sonoma County, and is 5 miles (8.0 km) north-northeast of the nearest community,Stewarts Point. Annapolis has ZIP code 95412. The community is named after Annapolis Orchards, which was founded in the area in the 1880s. As of 2010, Annapolis has about 401 residents.
The community has one school, Horicon School, a K-8 public school. Students who attend Horicon School are transitioned to the Point Arena Joint Union High District, and attend Point Arena High School in Point Arena, Mendocino County.