Santa Barbara County (California) chart of communities by population (2010)

† county seat

Reference 1: Population (2010 Census).

Reference 2: Santa Maria, † Santa Barbara, Lompoc, Goleta, Orcutt, Isla Vista, Carpinteria, Montecito, Guadalupe, Vandenberg Village, Solvang, Buellton, Santa Ynez, Mission Hills, Vandenberg AFB, Mission Canyon, Los Alamos, Toro Canyon, Summerland, Los Olivos, New Cuyama, Ballard, Santa Ynez Reservation[51], Sisquoc, Casmalia, Garey and Cuyama.

Source: http://en.wikipedia.org/wiki/Santa_Barbara_County,_California