York Region, located in southcentral Ontario, Canada, assigned approximately 50 regional roads, each with a number ranging from 1 to 99. All expenses for York Regional Roads (i.e: maintenance, traffic lights, and snow clearing) are funded by the York Region government. Several new roads were assumed by the region include King–Vaughan Town Line and Kirby Sideroad. Most north-south roads originating in Toronto retains the proper names from south of Steeles Avenue.

Roads on Georgina Island are maintained by Chippewas of Georgina Island First Nation despite the island being within York Region.

Roads are generally paved with some gravel roads in less populated areas. Before the 20th Century most cleared roads were dirt roads.

Types of roads King's Highways There are of provincially maintained highways, termed "provincial highways" or "King's Highways".

As in the rest of Ontario, the provincially maintained highways in York Region are designated with a shield-shaped sign topped with a crown. The highway number is in the centre, with the name ONTARIO below. These signs are known as shields.

Provincially maintained highways generally have greater construction standards than municipally or locally maintained roads. Although they are usually one lane in either direction, several short sections with two lanes in one direction as a passing lane exist along the highways.

York Region is also home to three 400-series highways, which are controlled-access freeways.

Toll highway York Region is home to a privately maintained (but provincially-owned) toll freeway, the 407 ETR. The freeway crosses the Region east-west near the southern border. Toll rates vary depending on the section, time of day, and mileage driven.

Regional Roads York Regional Roads are signed with a flowerpot-shaped sign, as are most regional and county roads in Ontario. The road number appears in the centre of the sign, with the word REGION above and the word YORK below. Like King's Highways, these signs are known as shields. As par standard practice in regional municipalities, they run through and are signed in urban areas in addition to rural areas.

King's Highways The following is a list of provincially maintained highways in York Region. Communities are ordered by where the route encounters them (either from south to north or from west to east). Route Length Western/Southern Terminus Eastern/Northern Terminus Municipalities/Communities Comments km mi Highway 48 Major Mackenzie Drive (York Regional Road 25) Durham Regional Road 23 Markham, Whitchurch-Stouffville (Stouffville), Whitchurch-Stouffville (Ballantrae), East Gwillimbury (Mount Albert), Georgina (Sutton) Highway 404 Steeles Avenue Woodbine Avenue (York Regional Road 8) Richmond Hill, Markham, Aurora, Newmarket, Whitchurch-Stouffville, East Gwillimbury, Georgina Highway 404 forms the eastern/western borders of part of Richmond Hill/Markham, Richmond Hill/Whitchurch-Stouffville, Aurora/Whitchurch-Stouffville, Newmarket/Whitchurch-Stouffville, and part of Newmarket/East Gwillimbury. Highway 400 Steeles Avenue Canal Road Vaughan, King (King City) Highway 9 Caledon-King Townline east of Highway 400 King (Schomberg) Forms the border between York Region and Simcoe County between Caledon-King Townline and Canal Road. Highway 427 Steeles Avenue Major Mackenzie Drive (York Regional Road 25) Vaughan Highway 7 Reesor Road York-Durham Line (York Regional Road 30; Durham Regional Road 30) Markham (Locust Hill)

Express freeways

Route Length Western/Southern Terminus Eastern/Northern Terminus Municipalities Comments km mi 407 Express Toll Route Highway 50 (Peel Regional Road 50; York Regional Road 24) York-Durham Line (York Regional Road 30) Vaughan, Richmond Hill, Markham Privately owned toll freeway

Georgina Island

The main arterial road is a series of different named roads:

Bear Road - runs along south side of Georgina Island Chief Joseph Snake Road - runs along western side of Georgina Island and transitions to Loon Road at northern tip Loon Road - runs along eastern side of Georgina Island and transitions to Chief Joseph Snake Road at northern tip

Boundaries of York Region Steeles Avenue marks the York Region/Toronto boundary, internally designated as York Regional Road 95 York–Durham Regional Road 30 (York–Durham Line), York Regional Road 32 (Ravenshoe Road), and Durham Region Road 23 (Lake Ridge Road) marks the York Region/Durham Region boundary York Regional Road 24 (or Peel Regional Road 50) marks the York Region/Peel Region boundary Highway 9 and Holland River form the York Region/Simcoe County boundary

Georgina Island, Fox Island and Snake Island are within York Region, but are also part of the Chippewas of Georgina Island First Nation.

Regional Roads Regional road # Proper Name Western/Northern terminus Eastern/Southern terminus Municipalities Additional notes/Traffic Yonge StreetHighway 11 York Region/Simcoe County boundary Steeles Avenue Markham, Vaughan, Richmond Hill, Aurora, Newmarket, East Gwillimbury Formerly Highway 11. This road is the central divider of York Region (and Toronto, from where it continues). Very busy road (especially in Richmond Hill, Markham, and Vaughan). Yonge Street turns off York Road 1 south of Holland Landing and is signed York Road 51, while York Road 1 continues northwest to Bradford in Simcoe County under the decommissioned highway name Highway 11. The Viva Blue BRT line serves Yonge Street. Kennedy Road Lake Drive East in Georgina Steeles Avenue Markham, Whitchurch–Stouffville, East Gwillimbury, Georgina Continues from Toronto. Before naming it was the 6th Line. Former sections of Kennedy before the present alignment include Old Kennedy Road, Fresno Circuit, and Main Street Unionville. Section bypassing Main Street Unionville was briefly named Unionville By-pass. York Regional Road status was interrupted between Davis Drive (continues briefly north to dead end) and Herald Road. The interruption due to the existence of the Bendor and Grave Tract (York Regional Forest), created by re-forestation of developed land acquired by the province beginning in 1924. Pheasant Run Golf Course's eastern end overlaps roadway. Its length is 68km (including Toronto parts of Kennedy road) Keele Street Lloydtown-Aurora Road Steeles Avenue Vaughan, King Continues from Toronto. Unsigned road continues north of Lloydtown-Auroa Road as to King Street then becomes 4th Concession Road ending just before the Holland River. Briefly across the Holland River is a short roadway called Keele Lane which end shortly at Tornado Road. York Region/Peel Region Boundary Reesor Road Vaughan, Richmond Hill, Markham This route is a heavily travelled route, especially between Highway 400 and McCowan Road in Vaughan, Richmond Hill, and Markham. Most of Viva Orange and Viva Purple run on Highway 7. The road was part of Ontario Highway 7 before the 1997 downloadings. Portions in Markham were once called Wellington Street (a short section still exists south of 7 at Main Street Markham). Provincial highway status resumes east of Donald Cousens Parkway. Woodbine Avenue Lake Drive North in Georgina Steeles Avenue /Highway 404 Markham, Whitchurch–Stouffville, Georgina Runs closely parallel to Highway 404. Formerly continued south into Toronto, with that section today incorporated into Highway 404, which was constructed on a separate alignment to the west through York Region. Connects with the highway south of Steeles with directional ramps. In 2010, the Woodbine Avenue By-Pass, was opened to preserve the community of Victoria Square in Markham as urbanization encroached; with the old alignment renamed Victoria Square Boulevard', though the bypass was redesignated as part of Woodbine Avenue proper in 2015. Several former road stub exists with new names after various realignments: Union Street, in Gormley south of Stouffville Road. Baseline Road Woodbine Avenue Dalton Road Georgina Road is a suffixed route that runs east-west and defaults from Woodbine Avenue (RR #8), (with a turn required for traffic to continue along Woodbine). The road is also secretly designated as number #88. Road name derived from early road surveying commonly used in the 19th and early 20th Centuries in Ontario. Dalton RoadMain Street Sutton (High Street) Lake Drive East Highway 48 Georgina Two of the roads pass through the centre of the village of Sutton. Richard Dalton was a landowner in nearby Virginia located near the Roman Catholic Church along the route from Highway 48 east of Sutton.Georgina Map King Road York Region/Peel Region Boundary Yonge Street Richmond Hill, King It passes through King City, Nobleton and Oak Ridges. Named for Major John King, British Under-Secretary of State. Formerly 14th Sideroad. Don Mills RoadLeslie StreetThe Queensway Metro Road South and Morton Avenue Steeles Avenue Markham, Richmond Hill, Aurora, Newmarket, East Gwillimbury, Georgina Continues from Toronto as Don Mills Road at Steeles Avenue and becomes Leslie Street north of John Street. Becomes The Queensway and passes through the centre of Keswick. This section is proposed to be renamed Main Street Keswick in the future. Leslie Street also continues from Toronto, but a short section north of Steeles is bypassed and/or broken (hence the portion following Don Mills Road) due to geography including (German Mills Park, Duncan Creek) and the German Mills residential area; section from Steeles to slightly north of Simonston Boulevard was once part of German Mills Road. The section of Leslie from Steeles to Waterloo Court is not part of the regional road. All sections of Leslie in Markham were once signed as 3rd Line. Mount Albert RoadBradford Street Holland Landing Road York–Durham Line East Gwillimbury Connects Holland Landing, Sharon and Mount Albert Stouffville RoadMain Street StouffvilleKing–Vaughan Line Pine Valley Drive York–Durham Line Richmond Hill, Whitchurch–Stouffville It passes through the centre of Gormley and Stouffville. It is one of the busiest rural roads in York Region. Named for Stouffville founder Abraham Stouffer. Regional Road status interrupted between Bathurst and Yonge Streets. Formerly as known as Whitchurch Town Line before merger of Whitchurch-Stouffville. Wellington StreetAurora Road Dufferin Street York–Durham Line King, Aurora, Whitchurch–Stouffville Passes through the centre of Aurora. The Aurora GO Station can also be found on this road. Follows or formerly known as 17th Sideroad. Lloydtown-Aurora Road Highway 27 Bathurst Street King Accessible to Highway 400, links Aurora and Lloydtown.