Lafayette is a city in Contra Costa County, California, United States. As of the 2000 census, the city's population was 23,908. It is named after the Marquis de Lafayette, a French military hero of the American Revolutionary War. Today Lafayette is known for its bucolic rolling hills and upscale lifestyle. Average home prices start at $1 million. Lafayette apartments for rent comparison page shows most up to date rent information on Lafayette apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.