Oshkosh Main Post Office

Post office

1025 W. 20th Avenue, Oshkosh, WI 54902

For Appointment Call (920)236-0627

Appointment required

Hours and addresses come from the State Department listing, updated November 2, 2026.

Book at USPS Directions Facilities in Oshkosh Facilities in Wisconsin

Oshkosh Main Post Office accepts new U.S. passport applications in person in Oshkosh, WI. First-time and child visits are booked on the USPS scheduler. Search ZIP 54902. How to apply · How to renew

Other facilities in Oshkosh

Winnebago County Clerk Of Circuit Court