Poy Sippi is an unincorporated census-designated place in the town of Poy Sippi in Waushara County, Wisconsin, United States. It is located at the intersection of Wisconsin Highway 49 and County H. As of the 2010 census, its population is 371.
History The Pine River was called "Poygan Sippi" by Potawatomi IndiansPoy Sippi Public Library website 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.
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