Ypsilanti, commonly shortened to Ypsi, is a city and college town located on the Huron River in Washtenaw County, Michigan, United States. As of the 2020 census, the city's population was 20,648. The city is bounded to the north by Superior Charter Township and on the west, south, and east by Ypsilanti Charter Township. Ypsilanti is a part of the Ann Arbor–Ypsilanti metropolitan area, the Huron River Valley, and the Detroit–Warren–Ann Arbor combined statistical area.