Location of St. Augustine in
Ontario
St. Augustine is a community in the municipality of Ashfield-Colborne-Wawanosh, Huron County, Ontario. St. Augustine is east of Dungannon, south of St. Helens and north of Auburn.
43°50′38″N 81°30′14″W / 43.844°N 81.504°W / 43.844; -81.504