Winona Lake is a town in Wayne Township, Kosciusko County, in the U.S. state of Indiana, and the major suburb of Warsaw.

Winona Lake is now contiguous to Warsaw, the two towns having run into each other as they have expanded.

Located along the eastern shore of the lake, the Winona Lake Historic District includes various historic homes and other buildings that attest to the area's history as a Chautauqua and Bible conference hotspot.

It is also the home of Grace College and Grace Theological Seminary and was the home of famed preacher and professional baseball player Billy Sunday who died in 1935.

Christian musician and preacher Homer Rodeheaver also made Winona Lake his home from 1912 until his death in 1955.

The Winona School of Professional Photography was started there in 1912 (as the Indiana School of Photography) and was operated by the Professional Photographers of America (PPA) until its move to Chicago (Mount Prospect) in 1988.

Winona Lake was also home to the headquarters of The Free Methodist Church until it moved its offices to Indianapolis in 1990.

[6] At the 2010 census there were 4,908 people, 1,569 households, and 1,098 families living in the town.