There are 24 zip codes in Santa Barbara County, California. The most populated is 93458, located in Santa Maria. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
9345859,789Santa Maria
9343655,591Lompoc
9311753,345Goleta
9345544,186Santa Maria
9345441,110Santa Maria
9310129,870Santa Barbara
9310526,482Santa Barbara
9310319,653Santa Barbara
9311118,165Santa Barbara
9301316,459Carpinteria
9311016,403Santa Barbara
9310911,626Santa Barbara
9310811,209Santa Barbara
934348,272Guadalupe
934638,059Solvang
934606,280Santa Ynez
934275,980Buellton
931065,369Santa Barbara
934373,681Lompoc
934411,085Los Olivos
93067999Summerland
93254869New Cuyama
93440846Los Alamos
9342964Casmalia

Zip Codes in Santa Barbara County, California by Population (2024)