List of US Post Office Stores in Valparaiso, IN Outlet Note Regular Brands US Post Office Indiana Valparaiso Rating 4.5 based on 76 votes Official Website https://www.usps.com/ Products Postal Service NameAddressPhone Name/Address/Phone US Post Office outlet - Valparaiso 2700 Valparaiso St (800) 275-8777 People Also Viewed