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2015. San Joaquin County (Calif.). Community Development Department. This polygon shapefile contains boundaries for zip codes of San Joaquin County, California as of July 2015. This layer is part of a collection of G... San Joaquin County (Calif.). Community Development Department.
2020. San Joaquin County (Calif.).Community Development Department. This polygon shapefile contains boundaries for zip codes of San Joaquin County, California. Year: 2020. These data are made available as a public s... San Joaquin County (Calif.).Community Development Department.