ZIP Code 87547

About White Rock

White Rock is an unincorporated community and census-designated place (CDP) in Los Alamos County, New Mexico. It is one of two major population centers in the county; the other is Los Alamos. As of the 2020 census, White Rock had a population of 5,852. It is largely a bedroom community for employees of Los Alamos National Laboratory and their families. Access to White Rock from the town of Los Alamos and other cities and towns in New Mexico is via New Mexico State Road 4, which forms the northwestern boundary of the community. Administratively, White Rock is a neighborhood of Los Alamos; locals refer to Los Alamos as "the Townsite," or "the Hill". In 2024, White Rock was named "Happiest Small Town in America".

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