Alameda is a city in Alameda County, California, United States. It is located on Alameda Island and Bay Farm Island, and is adjacent to Oakland in the San Francisco Bay. Bay Farm Island, a portion of which is also known as "Harbor Bay", is adjacent to the Oakland International Airport. At the 2010 census, the city had a total population of 73,812. Alameda is a charter city, rather than a general law city, meaning that the city can provide for any form of government.