Santa Barbara is the county seat of Santa Barbara County, California. Situated on a south-facing section of coastline, the longest such section on the West Coast of the United States, the city lies between the steeply rising Santa Ynez Mountains and the Pacific Ocean. Santa Barbara's climate is often described as Mediterranean, and the city has been promoted as the "American Riviera". As of the census of 2010, the city had a population of 88,410, a loss of 1,190 from the previous census, making it the second most populous city in the county after Santa Maria while the contiguous urban area, which includes the cities of Goleta and Carpinteria, along with the unincorporated regions of Isla Vista, Montecito, Mission Canyon, Hope Ranch, Summerland, and others, has an approximate population of 220,000. The population of the entire county in 2010 was 423,895.
The first Monterey-style adobe in California was built on State Street of Santa Barbara by the wealthy merchant Alpheus Thompson. The dominant architectural themes of Santa Barbara are the Spanish Colonial Revival and the related Mission Revival style, encouraged through design guidelines adopted by city leaders after the 1925 earthquake destroyed much of the downtown commercial district. Residential architectural styles in Santa Barbara reflect the era of their construction. Many late 1800s Victorian homes remain downtown and in the "Upper East" neighborhood. California bungalows are common, built in the early decades of the 20th century. Spanish Colonial Revival-style homes built after 1925 are common all over the city, especially in newer upscale residential areas like Montecito and Hope Ranch.