Oshkosh is a city in Winnebago County, Wisconsin, United States, and its county seat. It is located along the Fox River between Lake Butte des Morts and Lake Winnebago. The population was 66,816 at the 2020 census, making it the ninth-most populous city in Wisconsin. The Oshkosh metropolitan statistical area, consisting solely of Winnebago County, had 171,730 residents. Oshkosh is included in the greater Fox Cities region of Wisconsin.
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