Belvedere is a residential incorporated city located on the San Francisco Bay in Marin County, California, United States. Consisting of two islands and a lagoon, it is connected to the Tiburon Peninsula by two causeways. At the 2010 census, the population was 2,068. The per-capita (per person) income of Belvedere residents in the year 2000 was $250,000, but currently the average income is $283,000., making it one of the highest-income cities in California and the eighth highest-income community in the United States (highest with a population of over 1,000 residents). Belvedere and Tiburon share a post office and the 94920 zip code.
Depending on where their homes are located, residents of Belvedere enjoy views of San Francisco, Angel Island, Sausalito, the Golden Gate Bridge, San Francisco and Richardson Bays, and Mount Tamalpais.
Houses on Belvedere and Corinthian Islands encompass a range of periods and architectural styles from Victorian to Mediterranean to post-and-beam "mid-century modern". Many are "cliff-hangers". Houses on the Belvedere Lagoon were designed by architects in the 1950s and 1960s. Houses on the lagoon have their own boat docks. Many of the homes on Belvedere and Corinthian Islands have docks with access to San Francisco Bay.
A number of Belvedere homes are listed on the National Register of Historic Places; e.g.,the Valentine Rey House designed by Willis Polk and built in 1893. Notable designers of homes in Belvedere have included Joseph Esherick, Albert Farr, who designed the Belvedere Land Company building and cottages, Henry Gutterson, and Charles Warren Callister.
New construction has become a contentious issue as residents have become frustrated with large projects that they believe are negatively affecting the character of the community.
Belvedere is a residential community. The nearby town of Tiburon provides services, shops and eateries.