Whitchurch–Stouffville /ˈwɪt͡ʃə˞t͡ʃ ˈstoʊvɪɫ/ (2011 population 37,628; 2014 est.: 44,500) is a municipality in the Greater Toronto Area of Ontario, Canada, approximately 50 kilometres north of downtown Toronto, and 55 kilometres north-east of Toronto Pearson International Airport. It is 206.41 square kilometres in size, and located in the mid-eastern area of the Regional Municipality of York on the ecologically sensitive Oak Ridges Moraine.