Casmalia, CA

ZIP code 93429 covers Los Alamos and surrounding rural areas in northern Santa Barbara County, California. Its notable landmarks cluster along Bell Street, the town’s historic main corridor, including the Union Hotel, an 1880s Victorian-era inn, and the former Southern Pacific railroad depot. The surrounding vineyards and ranchlands reflect the area’s agricultural character, while the historic downtown retains buildings from the community’s late-19th-century beginnings.