an average elevation of 200 metres between Highway 27 and Pine Valley Drive. The terrain can be described as a series of rolling hills and valleys. There are numerous valley intersections that demonstrate the geography of the area, notably Highway 7 and Islington and Highway 27 and Rutherford. The area was mainly farmland before the onset of suburbanization in the 1970s, but the residential communities are interspersed with forests along the Humber River and its eastern branch. Today, much of the area is residential with commercial and industrial properties to the south, close to Steeles Avenue and to the east near Pine Valley Drive. The area commonly considered to be Woodbridge today covers a very large portion (roughly one-third) of Vaughan, and is usually seen as being bounded by Highway 50 or Highway 27 to the west, Steeles Avenue to the south, Highway 400 to the east, and Major Mackenzie Drive to the north. Climate Woodbridge has a humid continental climate (Köppen climate classification Dfb), with warm, humid summers and cold, snowy winters. Woodbridge winters feature cold snaps where maximum temperatures remain below −10 °C (14 °F), often made to feel colder by wind chill. Accumulating snow can fall any time from October until April. Summer in Woodbridge is characterized by long stretches of humid weather. Spring and autumn are transitional seasons, with generally mild or cool temperatures and alternating dry and wet periods. According to the USDA plant hardiness level, Woodbridge is 5a. Surrounding communities Kleinburg, N Maple, NE Concord, E Etobicoke, S (Toronto) Claireville, W (Brampton) Rexdale,S (Toronto) Demographics As of the 2021 census, the population of Woodbridge is 106,810, a 1.5% increase from the 105,228 population in 2016. As of the 2021 census, the top three ethnic groups in Woodbridge are Italian (49,660; 46.7%; which, until the most recent census, was the highest concentration in Canada, now second to Nobleton), East Indian (5,815; 5.5%), Canadian (5,655; 5.3%). Attractions Greenspace Woodbridge is home to two natural preserves along the Humber River: Boyd Conservation Area Kortright Centre for Conservation Doctors McLean District Park Rainbow Creek Park Woodbridge Fairgrounds Fundale Park Maxey Park Sites of interest Market Lane Memorial Hill with a tower Pierre Berton Library Boyd Conservation Area Kortright Centre Education Blue Willow Public School Dayley's Mills Public School Padre Dave Cheapola Emily Carr Secondary School Father Bressani Catholic High School Fossil Hill Public School Elders Mills Public School