SSA splits North Middleton township's 19 ZIP codes among 3 offices: 17 to the Carlisle Social Security Office, 1 to the York Social Security Office and 1 to the Chambersburg Social Security Office. For 7 of them, the assigned office isn't the closest one, so check your ZIP before you go.
ZIP codes 17007, 17013, 17015, 17020, 17024, 17025, 17027, 17040, 17047, 17050, 17053, 17055, 17065, 17068, 17081, 17090 and 17241 go to the Carlisle Social Security Office, 200 S Spring Garden St, Suite 1, Carlisle.
ZIP code 17019 goes to the York Social Security Office, 2670 Industrial Hwy, Suite 2, York.
ZIP code 17324 goes to the Chambersburg Social Security Office, 50 N Third Street, Chambersburg.
Assigned offices from SSA's Office Locator, looked up by ZIP code on October 1, 2026. ZIP codes are those whose area overlaps North Middleton township (U.S. Census Bureau, 2020 ZIP Code Tabulation Areas). Distance is straight-line, from the center of the ZIP code to the office.