Tecate is an unincorporated community in the Mountain Empire area of southeastern San Diego County, California, directly adjacent to the Mexican city of Tecate, Baja California. The area is best known for its border crossing between the United States and Mexico, and nearby Tecate Peak. The population of the area is 207. 71.01% of the population is Hispanic or Latino of any race. The ZIP Code is 91980 and the community is part of area code 619.