Poy Sippi is a town in Waushara County, Wisconsin, United States. The population was 919 at the 2020 census. The census-designated place of Poy Sippi is located in the town. The unincorporated communities of Borth and Fountain Valley are also located in the town.
History
The Pine River was called "Poygan Sippi" by Potawatomi Indians because it flowed into Lake Poygan. The name was contracted to Poy Sippi. It is said to be a corruption of an Indian word meaning "Sioux river." In the related Menominee language, it is called Pawāhnān-Sīpiah, "Wild Rice Gathering River", referring to the importance of wild rice as a staple crop to the local people.
Geography
According to the United States Census Bureau, the town has a total area of 35.9 square miles (93.1 km<sup>2</sup>), of which 32.3 square miles (83.7 km<sup>2</sup>) is land and 3.6 square miles (9.4 km<sup>2</sup>) (10.10%) is water.
Demographics
As of the census