Jump River is a town in Taylor County, Wisconsin, United States. The population was 311 at the 2000 census. The town takes its name from the Jump River which flows through its northwest corner. There is also a census-designated place called Jump River located partially in the town.

Taylor County is a county in the U.S. state of Wisconsin. As of the 2020 census, the population was 19,913. Its county seat is Medford. It is mostly rural, lying roughly where corn and dairy farms to the south give way to forest and swamp to the north.