Ephraim Post Office Services Phone (920) 854-4426 Physical Address3043 Cedar St.Ephraim, WI 54211 Mailing AddressEphraim, WI 54211 http://www.postallocations.com/wi/ephraim/ephraim Get Driving Directions Related Articles Ward Off the Winter Witch Server of the Week: Wrigley @ Ephraim Post Office