Markham, Ontario, incorporated as a city in 1971, population 328,966 (2016 census), 301,709 (2011 census). Markham is located immediately northeast of Toronto. It is one of nine municipalities that make up the Regional Municipality of York. The Rouge River cuts through the municipality diagonally, connecting to Rouge National Urban Park. Initially an agricultural community, Markham is now known for its technology businesses and ethnocultural diversity.