It's Official.... the Seminole Heights Post Office is Closing. Our local post office located on Florida Ave in South Seminole Heights made it official. They are closing September 13th, moving all services to the Sulphur Springs station, located at 6706 N Nebraska Ave.(which actually isn't in Sulphur Springs, but still in Seminole Heights).  What their announcement didn't clarify, was what would happen to the ZIP Code, post office boxes and numbers??? A clerk at the doomed Seminole Heights branch confirmed that all post offrice boxes, numbers and ZIP codes would remain the same. The boxes will be physically moved to the new location.