post office in Oshkosh

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Oshkosh Post Office
20th Ave. & Simpson St., 1025 West 20th Avenue, Oshkosh, WI 54902
 
United States Postal Service
130 State Street, Oshkosh, WI 54901
+1 800-275-8777
US Post Office
2415 Westowne Avenue, Oshkosh, WI 54904
+1 920-966-3378