Lafayette (formerly, La Fayette) is a city in Contra Costa County, California, United States. As of 2011, the city’s population was estimated to be 24,285. It was named after the Marquis de La Fayette, a French military hero of the American Revolutionary War. Today Lafayette is known for its pastoral rolling hills, good schools, and wealthy inhabitants. In 2016, the median household income in Lafayette was over $140,000, more than twice the statewide average and about two and half times the national median.
The city is part of the greater San Francisco Bay Area and has its own station on the BART public transit system. Lafayette is situated between Walnut Creek, Moraga, and Orinda, and, together with the latter two towns, is considered locally as part of “Lamorinda”. Lafayette is separated from greater Berkeley and Oakland by the Berkeley Hills (and the Caldecott Tunnel running beneath), a geographical boundary within the East Bay which also represents interesting meteorological, cultural, and political distinctions.