Welcome to Markham Canada's High Tech Capital, Town of Markham is a rather large territory extending from south/east at 11th line & Steeles to Elgin Mills & 404. It is divided into 4 communities known as Markham, Unionville, Thornhill and Milliken Mills.

Unionville, from the 404 to McCowan Rd and south to Hwy 407 is one of the more established parts of Markham with its historic Main St. and century homes. At the tip of Main St. you will find Toogood pond, an 82 acre park featuring a naturalized pond and marsh with a walkway circling the pond. Unionville is home to high-end neighbourhoods such as Cachet, The Bridle Trail and Angus Glen.

Markham, from McCowan Rd east to 11th Line, also has its own Main Street, referred to as "Main St. Markham" with its own share of century homes within the Markham Village. Markham is home to a number of newer communities such as Wismer and Greensborough (north of 16th Av.), Cornell (East of 9th line), and Legacy, Rouge Fairways and upcoming Box Grove (south of Highway 7).

Milliken Mills, south of the 407 to Steeles, is named after three early pioneers who established mill sites in the 18th century. Today, Milliken Mills is home to Markham's only indoor soccer dome and to the Armadale Community centre.

Thornhill is divided in half between the Town of Markham and the City of Vaughan, and runs along both the east and the west sides of Yonge Street. The portion between Yonge Street and the 404 is managed by the Town of Markham. When searching for homes in this area districts, use N01 and N02.