Wellington County | Town Of Erin.

The West Branch of the Credit River played a primary role in the establishment and growth of Erin Village and Hillsburgh in the 19th Century, powering mills that were essential to the economy. The Town of Erin is proud of its history and is committed to protecting the valuable environment that the river provides.

Erin is a town in Wellington County, approximately 80 kilometres northwest of Toronto, Ontario, Canada. Erin is bordered by the Town of Caledon, Ontario to the east, the Town of Halton Hills to the south, the Township of Guelph/Eramosa to the west and the Township of East Garafraxa to the north.

The urban community now called Erin developed after mills were built on the Credit River between 1826 and 1829. The first settlers included Daniel MacMillan and the Trout family. The settlement was established as "MacMillan's Mills" although most sources indicate that the Trout family built the first sawmill.