Post Offices For Zip Code Info 2224 Custer Dr Custer, WI 54423 Phone : (715) 344-8432 Business Category Business Services Information & Referral Services Post Office - Cpu Uw Stevens Point 1015 Reserve St Stevens Point, WI 54481 Phone : (715) 344-8432 Business Category Post Offices Toll-Free           (800) ASK-USPS