SSA splits San Antonio's 51 ZIP codes among 4 offices: 15 to the San Antonio Central Social Security Office, 13 to the San Antonio NW Social Security Office, 13 to the San Antonio Downtown Social Security Office and 10 to the San Antonio South Social Security Office. For 7 of them, the assigned office isn't the closest one, so check your ZIP before you go.
ZIP codes 78209, 78213, 78216, 78217, 78218, 78230, 78231, 78232, 78233, 78234, 78247, 78248, 78257, 78258 and 78259 go to the San Antonio Central Social Security Office, 402 Isom Rd, San Antonio.
ZIP codes 78023, 78226, 78227, 78228, 78229, 78237, 78238, 78240, 78249, 78250, 78251, 78254 and 78256 go to the San Antonio NW Social Security Office, 411 Richland Hills Dr, San Antonio.
ZIP codes 78201, 78202, 78203, 78204, 78205, 78207, 78208, 78210, 78212, 78215, 78219, 78220 and 78244 go to the San Antonio Downtown Social Security Office, 727 E Cesar Chavez, Rm 701 7th Floor, San Antonio.
ZIP codes 78211, 78214, 78221, 78222, 78223, 78224, 78225, 78235, 78242 and 78264 go to the San Antonio South Social Security Office, 3438 E Southcross Blvd, San Antonio.
Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps San Antonio (U.S. Census Bureau, 2020 ZIP Code Tabulation Areas). Distance is straight-line, from the center of the ZIP code to the office.