Milnesville, Ontario

Locust Hill is a historic community of Markham, Ontario centred on Hwy. 7 and the Canadian Pacific Railway and within the boundaries of the future national Rouge Park.

Old (16th Avenue) Bailey Bridge is a Bailey bridge located below 16th Avenue (York Regional Road 73) east of Reesor Road within Rouge Park in Markham, Ontario, Canada. The bridge crossed the Little Rouge Creek, a tributary of the Rouge River. A new bridge was built above this bridge to provide two way access for 16th Avenue east of Ressor Road. The old bridge is in situ with ends fenced off to prevent trespassing.

Cornell is a new community village being developed in northeast Markham, Ontario and bounded by Highway 407, 16th Avenue, Ninth Line, and the Donald Cousens Parkway. The 2011 population of this area was 9,880. Adding Cornell North's 2,178 (from 16th Avenue to Donald Cousens Parkway) it had 12,058 residents.

Cornell Community Centre is a 129 000 square foot centre, located at 3201 Bur Oak Ave, Markham, Ontario and centred within the community of Cornell. It is one of the newest community centres in the City of Markham. It was opened on December 17, 2012, and includes many features. The community centre is connected to Markham Stouffville Hospital, allowing many different facilities to be available for patients and doctors. The Library also has a section dedicated to health, diseases, and hospital usages on the second floor.

Bill Hogarth Secondary School is a public high school in Markham, Ontario, Canada operated by the York Region District School Board. It opened in November 2017 for students in grades 9 and 10, some of whom were transferred from Pierre Elliott Trudeau High School. It offers a French immersion track in addition to the English curriculum. It is located at the intersection of Bur Oak Avenue and Almira Avenue.The school is named after Bill Hogarth, a former teacher and director of the York Region District School Board.Construction of the school was delayed by rain from April to July 2017, necessitating the school's opening being delayed from September to November 2017. During those months, students attended the nearby Bur Oak Secondary School.

Cedar Grove is a community in Markham, Ontario on the Little Rouge River. It is centred on 14th Avenue and Reesor Road (10th Line) and within the boundaries of the future national Rouge Park.

Cornell Terminal is a York Region Transit bus terminus on a site immediately south of Markham Stouffville Hospital in Markham, Ontario, Canada. The station opened in September 2022 and includes a passenger pick-up and drop-off area, a public plaza, and future retail space.

Markham Stouffville Hospital is an acute care community hospital with two sites: the Markham site, with diagnostic and emergency services, and clinical programs in childbirth, children's health, surgery, medicine, cancer care and mental health; and the Uxbridge site, a 20-bed hospital offering some inpatient and emergency services. In the 2019-2020 fiscal year there were almost 20,000 inpatient stays with an average length of stay of 4.6 days, and 106,000 emergency department visits.

Whitevale, formerly Majorville, is a community located within the City of Pickering in Durham Region, Ontario, Canada. The city refers to the community as the "Hamlet of Whitevale".

Bob Hunter Memorial Park is a greenspace preserve in Markham, Ontario, Canada. It is named in honour of Robert Hunter, one of the founders of Greenpeace. The park was officially opened in August 2006 by then Premier of Ontario, Dalton McGuinty.It consists of 500 acres (200 ha) of provincially owned land on the western edge of the Rouge River valley within Rouge Park, bounded roughly by Ontario Highway 407 to the north, Steeles Avenue East to the south, Little Rouge Creek (Rouge Park) to the east and the Canadian Pacific Railway Havelock subdivision (Kawartha Lakes Railway) line to the west.The city of Markham has a development plan for the park which includes renaturalizing the agricultural lands with Carolinian forests. In the spring of 2011, 25 hectares (62 acres) of forest were planted, and in the summer of 2011 a project began to create a meadow on land formerly used for agriculture. The park is scheduled to open in 2015 and "…will feature hiking and biking trails, a nature trail, restored wetland and re-planted native woodland."

Box Grove (Census Tract 5350400.01) is an original community in Markham, Ontario.