Lockeford is an unincorporated community in San Joaquin County, California, United States. For statistical purposes, the United States Census Bureau has defined Lockeford as a census-designated place (CDP). The census definition of the area may not precisely correspond to local understanding of the area with the same name. The population was 3,521 at the 2020 census, up from 3,233 at the 2010 census.

San Joaquin County, officially the County of San Joaquin, is a county located in the U.S. state of California. As of the 2020 census, the population was 779,233. The county seat is Stockton.