Pefferlaw is a community within the Town of Georgina, located 3 kilometres south of the southeastern shores of Lake Simcoe and in the eastern end of the town. The Pefferlaw River runs just south of the community's commercial district. Pefferlaw is passed on the north by Highway 48 and Lake Ridge Road (Durham Road 23) to the east, and is serviced by Pefferlaw Road which links these two traffic arteries. The Canadian National railway passes through Pefferlaw and, until the early 1990s, served a train station in the community's commercial district. The town is largely centered around the Pefferlaw Dam, blocking the Pefferlaw River. Pefferlaw is primarily situated in a forest setting. Farmlands are to the west, the northwest and the north. More farmlands are east of Lake Ridge Road and Pefferlaw.