Los Alamitos

Los Alamitos (Spanish for "The Little Cottonwoods") is a city in Orange County. It was incorporated in March 1960. A population of 11,780 was recorded at the 2020 census, up from 11,449 at the 2010 census. Rossmoor, an unincorporated community adjacent to the city, also uses the 90720 ZIP code for its mailing address, but is not incorporated.