This is alist of secondary highways in Parry Sound District, many of which provide access to isolated settlements and recreational properties within theParry Sound District ofOntario.

Highway 510
Route information
Maintained by theMinistry of Transportation of Ontario
Length	2.8 km[1] (1.7 mi)
Major junctions
South end	Highway 520 inMagnetawan
North end	Highway 124 –Parry Sound,Sundridge
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Highway system
Ontario provincial highways Current Former 400-series
←Highway 505 →Highway 516

Secondary Highway 510, commonly referred to asHighway 510, is aprovincially maintained highway in theCanadian province ofOntario. The highway is 2.8 kilometres (1.7 mi) in length, connectingHighway 520 inMagnetawan withHighway 124.

Highway 518
Route information
Maintained by theMinistry of Transportation of Ontario
Length	72.7 km[1] (45.2 mi)
Existed	1956[2]–present
Major junctions
West end	Highway 400 –Parry Sound
East end	Kearney
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Major cities	Orrville,Bear Lake,Sprucedale,Emsdale
Highway system
Ontario provincial highways Current Former 400-series
←Highway 516 →Highway 519

Secondary Highway 518, commonly referred to asHighway 518, is aprovincially maintained secondary highway in theCanadian province ofOntario. Highway 518 spans 72.7 kilometres (45.2 mi) betweenParry Sound andKearney. It serves as one of the many links betweenHighway 400 andHighway 11. The highway was assumed in 1956, and has remained generally unchanged since, aside from being truncated slightly at both ends.

Highway 520
Route information
Maintained by theMinistry of Transportation of Ontario
Length	68 km[1] (42 mi)
Major junctions
West end	ArdbegCN station
Major intersections	Highway 124  Highway 510 –Magnetawan
East end	Highway 11 –Burk's Falls
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Highway system
Ontario provincial highways Current Former 400-series
←Highway 519 →Highway 522

Secondary Highway 520, commonly referred to asHighway 520, is aprovincially maintained highway in theCanadian province ofOntario. The highway is 68 kilometres (42 mi) in length, connecting several small communities inParry Sound District withHighway 124 andHighway 11.

The highway links several remoteFirst Nation hamlets to the major highway routes of the region. However, the only places of noteworthy size are the village ofMagnetawan and the town ofBurk's Falls. It isconcurrent with Highway 124 for 15.4 kilometres (9.6 mi).

Highway 522
Route information
Maintained by theMinistry of Transportation of Ontario
Length	109.6 km[1] (68.1 mi)
Major junctions
West end	Highway 69 –Cranberry
East end	Highway 11 –Powassan
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Highway system
Ontario provincial highways Current Former 400-series
←Highway 520 →Highway 522B

Secondary Highway 522, commonly referred to asHighway 522, is aprovincially maintained highway in theCanadian province ofOntario. The highway is 109.6 kilometres (68.1 mi) in length, connectingHighway 69 nearCranberry withHighway 11 inPowassan. Highway 522 serves as the only link between these two routes south ofHighway 17 and north ofHighway 124. It is often used to accessGrundy Lake Provincial Park, a popular camping area for northbound travellers.

Highway 522B
Route information
Maintained by theMinistry of Transportation of Ontario
Length	1.9 km[1] (1.2 mi)
Existed	October 2002[3]–present
Major junctions
South end	Highway 522
Major intersections	Highway 11 –North Bay
North end	Hemlock Road (continues north as McCarthy Street)
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Highway system
Ontario provincial highways Current Former 400-series
←Highway 522 →Highway 523

Secondary Highway 522B, commonly referred to asHighway 522B, is aprovincially maintained highway in theCanadian province ofOntario. The highway is 1.9 kilometres (1.2 mi) in length, connectingHighway 522 withinTrout Creek withHighway 11 to the north.The highway was created in late 2002 when the Trout Creek Bypass of Highway 11 opened; Highway 522B forms a portion of the former routing.

Highway 524
Route information
Maintained by theMinistry of Transportation of Ontario
Length	4.6 km[1] (2.9 mi)
Existed	1956[2]–present
Major junctions
South end	Highway 522 atFarley's Corners.
North end	Highway 534 nearRestoule
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Highway system
Ontario provincial highways Current Former 400-series
←Highway 523 →Highway 525

Secondary Highway 524, commonly referred to asHighway 524, is aprovincially maintained highway in theCanadian province ofOntario. The highway is 4.6 kilometres (2.9 mi) in length, connectingHighway 520 atFarley's Corners withHighway 534, which leads toRestoule.

Highway 526
Route information
Maintained by theMinistry of Transportation of Ontario
Length	3.9 km[1] (2.4 mi)
Existed	1956–present
Major junctions
West end	Britt post office
East end	Highway 69
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Villages	Britt
Highway system
Ontario provincial highways Current Former 400-series
←Highway 525 →Highway 527

Secondary Highway 526, commonly referred to asHighway 526, is aprovincially maintained secondary highway in theCanadian province ofOntario. It is a short and lightly travelled route that connectsHighway 69 with the community ofBritt.

Highway 529
Route information
Maintained by theMinistry of Transportation of Ontario
Length	25.8 km[1] (16.0 mi)
Major junctions
South end	Highway 69 nearPointe au Baril
North end	Highway 69 atMagnetawan River
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Major cities	Manbert,Naiscoot,Naiscoutaing
Highway system
Ontario provincial highways Current Former 400-series
←Highway 528 →Highway 529A

Secondary Highway 529, commonly referred to asHighway 529, is asecondary highway in theCanadian province ofOntario. Located withinParry Sound District, the highway follows a 25.8-kilometre (16.0 mi) route, from its southern terminus atHighway 69 nearPointe au Baril to its northern terminus at Highway 69's crossing of theMagnetawan River nearByng Inlet.

Highway 529A
Route information
Maintained by theMinistry of Transportation of Ontario
Length	4.5 km[1] (2.8 mi)
Existed	1961–present
Major junctions
West end	Bayfield Lodge
East end	Highway 529 atManbert
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Villages	Bayfield Inlet,Manbert
Highway system
Ontario provincial highways Current Former 400-series
←Highway 529 →Highway 531

Secondary Highway 529A, commonly referred to asHighway 529A, is aprovincially maintained secondary highway in theCanadian province ofOntario. Located withinParry Sound District, the highway is a short spur ofHighway 529, extending fromManbert toBayfield Inlet.

Highway 559
Route information
Maintained byMinistry of Transportation of Ontario
Length	18.2 km[1] (11.3 mi)
Major junctions
Southwest end	Blind Bay Road atKillbear Provincial Park
Northeast end	Highway 400 atNobel
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Major cities	Carling
Highway system
Ontario provincial highways Current Former 400-series
←Highway 558 →Highway 560

Secondary Highway 559, commonly referred to asHighway 559, is asecondary highway in theCanadian province ofOntario, located within the township ofCarling inParry Sound District. The 18.2-kilometre (11.3 mi) highway extends from the entrance toKillbear Provincial Park, near the shores ofGeorgian Bay, to an interchange withHighway 400 (Exit 247) north ofNobel.

The highway serves as an access road to most of the communities in Carling Township, as well as the current northern terminus of Highway 400 as of 2010.^[4]

Highway 592
Route information
Maintained byMinistry of Transportation of Ontario
Length	16.4 km[1] (10.2 mi)
Existed	March 23, 1961[5]–present
Major junctions
South end	Highway 11 (Exit 235) atNovar
Major intersections	Highway 518 inEmsdale
North end	Katrine Road (Highway 7188 nearKatrine
Location
Country	Canada
Province	Ontario
Districts	Parry Sound District
Towns	Novar,Emsdale
Highway system
Ontario provincial highways Current Former 400-series
←Highway 591 →Highway 593

Secondary Highway 592, commonly referred to asHighway 592, is asecondary highway in theCanadian province ofOntario. Located in theParry Sound District, the highway provides access toNovar,Emsdale, and others. It is the former routing ofHighway 11 between Novar andKatrine. Highway 592 was assumed by the Department of Highways, predecessor to the modernMinistry of Transportation, on March 23, 1961.^[5]

Highway 612
Route information
Maintained by theMinistry of Transportation of Ontario
Length	4.4 km[1] (2.7 mi)
Existed	October 20, 1960[6]–present
Major junctions
South end	Parry Sound –Muskoka boundary
North end	Lake Joseph Road (Highway 7289) atGordon Bay
Location
Country	Canada
Province	Ontario
Divisions	Parry Sound
Major cities	Seguin
Highway system
Ontario provincial highways Current Former 400-series
←Highway 611 →Highway 613

Secondary Highway 612, commonly referred to asHighway 612, is asecondary highway in theCanadian province ofOntario. Located in theParry Sound District, the highway extends for 4.4 kilometres (2.7 mi) from a junction with Lake Joseph Road, the former route ofHighway 69, outside ofGordon Bay to the boundary of Parry Sound District with the regional municipality ofMuskoka near a junction with Healey Lake Road.

At the boundary, the roadway continues southward as Muskoka Road 11 throughMacTier. Prior to 1997, thiscounty road was also part of Highway 612.

A previous iteration of Highway 612 existed inAlgoma District between 1956 and 1958, which was renumbered asHighway 108 in late 1957 and 1958.

Highway 632
Route information
Maintained by theMinistry of Transportation of Ontario
Length	10.7 km (6.6 mi)
Existed	July 20, 1961[7]–present
Major junctions
South end	Parry Sound/Muskoka boundary
North end	Highway 141 inRosseau
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Major cities	Seguin
Highway system
Ontario provincial highways Current Former 400-series
←Highway 631 →Highway 633

Secondary Highway 632, commonly referred to asHighway 632, is asecondary highway in theCanadian province ofOntario, located inParry Sound District. The highway extends for 10.7 kilometres (6.6 mi) from a junction withHighway 141 inRosseau to the boundary between Parry Sound District and theMuskoka. At the boundary, the roadway continues southward as Muskoka Road 7 through the communities ofMinett,Gregory andPort Sandfield. Prior to 1997, thiscounty road was also part of Highway 632.

Highway 632 was first assumed by the Department of Highways, predecessor to the modernMinistry of Transportation, in Parry Sound District on July 20, 1961 at a length of 10.5 kilometres (6.5 mi). One week later, on July 29, another 16.1 kilometres (10.0 mi) within what was then just Muskoka District was assumed as part of the highway.^[5]

When the District Municipality of Muskoka was created in 1971, secondary highways within its boundaries were transferred to Muskoka and redesignated as part of itscounty road network.

Secondary Highway 644 commonly referred to asHighway 644, was asecondary highway in theCanadian province ofOntario. It is a very minor and extremely short route, and previously held the distinction of being Ontario's shortest posted highway at only 800 metres (1/2 mile) in length. On April 19th, 2006, since the highway served an exclusively local purpose, the route was transferred to the Township of the Archipelago. The road is now known as South Shore Road.^[8]

It is located inPointe au Baril inParry Sound District and simply acts as an access road to the community fromHighway 69.

Highway 645
Route information
Maintained byMinistry of Transportation of Ontario
Length	4.0 km[1] (2.5 mi)
Existed	April 1, 1964[9]–present
Major junctions
West end	Tramway Avenue atByng Inlet
East end	Highway 529 nearMagnetawan First Nation
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Highway system
Ontario provincial highways Current Former 400-series
←Highway 643 →Highway 647
Former provincial highways ←  Highway 644 Highway 646 →

Secondary Highway 645, commonly referred to asHighway 645, is asecondary highway in theCanadian province ofOntario. Located withinParry Sound District, the highway extends for 4.0 kilometres (2.5 mi) fromHighway 529 to the community ofByng Inlet. The route was established on April 1, 1964,^[10]and has remained unchanged since then.

Highway 654
Route information
Maintained by theMinistry of Transportation of Ontario
Length	22.9 km[1] (14.2 mi)
Existed	August 26, 1964[10]–present
Major junctions
South end	Highway 534 nearNipissing, Ontario
Major intersections	Highway 94
East end	Highway 11 atCallander
Location
Country	Canada
Province	Ontario
Districts	Parry Sound
Highway system
Ontario provincial highways Current Former 400-series
←Highway 653 →Highway 655

Secondary Highway 654, commonly referred to asHighway 654, is asecondary highway in theCanadian province ofOntario. The highway is 22.9 kilometres (14.2 mi) in length, connectingHighway 534 south ofNipissing withHighway 11 inCallander. The route was designated throughNorth Himsworth on August 26, 1964, and through Nipissing on August 28,^[10]and has remained unchanged since then, aside from a short extension to the Highway 11 Callander Bypass. It is sparsely travelled, but paved throughout its length.

• Ontario secondary highways
• Roads in Parry Sound District

• Articles with short description
• Short description is different from Wikidata
• Pages using infobox mapframe with missing coordinates
• Infobox road maps tracking category
• Infobox road instances in Ontario