Post Offices List in Oshkosh City, Wisconsin:
| Downtown Oshkosh Post Office | 130 State St, Oshkosh, WI 54901 |
| Oshkosh Post Office | 1025 W 20th Ave, Oshkosh, WI 54903 |
| Oshkosh Carrier Annex Post Office | 1900 Venture Dr, Oshkosh, WI 54902 |
| Downtown Oshkosh Post Office | 130 State St, Oshkosh, WI 54901 |
| Oshkosh Post Office | 1025 W 20th Ave, Oshkosh, WI 54903 |
| Oshkosh Carrier Annex Post Office | 1900 Venture Dr, Oshkosh, WI 54902 |