Los Alamos, California

Los Alamos
The Los Alamos welcome sign on Bell Street
Location in Santa Barbara County and the state of California
Coordinates: 34°44′31″N 120°16′31″W / 34.74194°N 120.27528°W / 34.74194; -120.27528
CountryUnited States
StateCalifornia
CountySanta Barbara
Government
 • State senatorMonique Limón (D)
 • AssemblymemberGregg Hart (D)
 • U. S. rep.Salud Carbajal (D)
Area
 • Total
0.904 sq mi (2.341 km2)
 • Land0.904 sq mi (2.341 km2)
 • Water0 sq mi (0 km2)  0%
Elevation
571 ft (174 m)
Population
 (2020)
 • Total
1,839
 • Density2,035/sq mi (785.6/km2)
Time zoneUTC-8 (Pacific)
 • Summer (DST)UTC-7 (PDT)
ZIP code
93440
Area code805
FIPS code06-43252
GNIS feature IDs245130, 2408131

Los Alamos (Spanish: Los Álamos, meaning The Cottonwoods) is an unincorporated community in Santa Barbara County, California, United States. Located in the Los Alamos Valley, the town of Los Alamos is considered to be a part of the Santa Ynez Valley community. Los Alamos is also connected to other cities Vandenberg SFB, Lompoc, Buellton, Solvang, and other Santa Barbara County cities. It is 140 miles (230 kilometres) northwest of Los Angeles and 281 miles (452 km) south of San Francisco. The population was 1,839 at the 2020 census, down from 1,890 at the 2010 census. For statistical purposes, the United States Census Bureau has defined Los Alamos as a census-designated place (CDP).