Pefferlaw is a community within the Town of Georgina, located 3 kilometres south of the southeastern shores of Lake Simcoe.

The Canadian National railway passes through Pefferlaw and, until the early 1990s, served a train station in the community's commercial district.

This railway links Toronto with Orillia and Northern Ontario with Via Rail transcontinental trains heading to Vancouver.

Pefferlaw's commercial district lies just north of the dam, and features a supermarket, hotel, youth centre, automobile service station, Canada Post office, medical centre with pharmacy, Liquor Control Board of Ontario retail store, and a branch of the Canadian Imperial Bank of Commerce.

The forests cover most of the area around Pefferlaw and to the south with a few farmlands as well as within the shoreline of Lake Simcoe.

The forests are mainly composed of pine and other varieties of trees and the size is about 600 to 700 square kilometres and about 80% of the area around Pefferlaw.

Pefferlaw was founded in the late 1820s by Captain William Johnson; a British Naval Officer who was released from service in 1815 following the Battle of Waterloo.