List of US Post Office Stores in Twin Falls, ID Outlet Note Regular Brands US Post Office Idaho Twin Falls Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Twin Falls 1376 Fillmore St (208) 734-1452 US Post Office outlet - Twin Falls 991 Washington St S (208) 733-8987 US Post Office outlet - Twin Falls 253 2nd Ave W (208) 733-0702 People Also Viewed