# List of numbered roads in Peterborough County

This is a list of numbered roads in Peterborough County, Ontario, Canada.
| Number | Local Name(s) | Western/Southern Terminus | Eastern/Northern Terminus | Settlements served | Additional Notes |
| Peterborough County Road 1 | Lindsay Road | Highway 7 | County Road 18 | Fowlers Corners | Formerly Highway 7B |
| Peterborough County Road 2 | Carmel Line Bensfort Road North Rice Lake Road Albert Street West | County Road 28 | County Road 45 | Bailieboro, Bensfort, Keene, Villiers, Birdsalls Station, Hastings | |
| Peterborough County Road 3 | Parkhill Road West | Highway 7 | County Road 27 | Peterborough | minor connecting route |
| Peterborough County Road 4 | Parkhill Road East Warsaw Road Water Street County Road 4 | Inverlea Bridge, Peterborough | County Road 6 | Peterborough, Donwood, Five Corners, Warsaw | |
| Peterborough County Road 5 | Lansdowne Road | Highway 7 | Peterborough city limits | Murray Hill, Peterborough | |
| Peterborough County Road 6 | Stony Lake Road 3rd Line North County Road 6 Unimin Road | Highway 28 | County Road 46 | Galesburg, Hall Glen, Gilchrist Bay, Clarina, Nephton, Blue Mountain | |
| Peterborough County Road 8 | County Road 8 Webster Road Line Road 5 Dummer-Asphodel Road | County Road 4 | County Road 40 | Douro, Cottesloe, South Dummer | |
| Peterborough County Road 9 | Mount Pleasant Road Sherbrooke Street | County Road 10 | Brealey Drive | Mount Pleasant, Peterborough | |
| Peterborough County Road 10 | County Road 10 Queen Mary Street | Challice 1st Line | Hayes Line | Mount Pleasant, Ida, Cavan, Millbrook, Carmel | a.k.a. Tupper Street and Duke Street in Millbrook |
| Peterborough County Road 11 | Moncrief Line Airport Road | County Road 28 | Brown Line | Peterborough Airport | |
| Peterborough County Road 12 | Fife's Bay Road Lily Lake Road | Fairbairn Street, Peterborough | Maryland Drive | Peterborough, Fife's Bay, Stewart Heights | |
| Peterborough County Road 15 | Monaghan Parkway | Highway 7 | Peterborough city limits | none | Formerly Highway 7 |
| Peterborough County Road 16 | Robinson Road Ennis Road Tara Road Blackpool Road | County Road 14 | Anchor Bay Road | Youngstown, Ennismore | |
| Peterborough County Road 17 | Robinson Road Listowel Line Emerald Isle Road | County Road 16 | Harrington Line | Emerald Isle, Connaught Shore | |
| Peterborough County Road 18 | Chemong Road Ward Street 8th Line | Peterborough city limits | County Road 29 | Chemong Park, Bridgenorth, Chemong Heights | Formerly Highway 7B (County Road 1 – Peterborough |
| Peterborough County Road 19 | 3rd Line | County Road 18 | Hilliard Street, Peterborough | none | minor connecting route |
| Peterborough County Road 20 | Selwyn Road 12th Line Young's Point Road | County Road 18 | Highway 28 | Selwyn Shores, Selwyn, Young's Point | |
| Peterborough County Road 21 | 5th Line Wallace Point Road | Glamorgan Road | County Road 39 | Millbrook, Wallace Point, Stewarts Hall, Cold Springs | |
| Peterborough County Road 22 | Curve Lake Road | Westview Road | County Road 23 | Curve Lake native reserve | |
| Peterborough County Road 23 | Buckhorn Road | County Road 29 | County Road 36 | Selwyn, Buckhorn | |
| Peterborough County Road 24 | Centre Line | Peterborough city limits | County Road 18 | Terra View Heights | |
| Peterborough County Road 25 | Young's Point Road | County Road 18 | County Road 20 | none | western shore route along Lake Katchewanooka |
| Peterborough County Road 27 | Ackison Road | County Road 3 | County Road 12 | none | minor connecting route |
| Peterborough County Road 28 | County Road 28 | Eagleson 1st Line | Highway 7 | Fraserville, South Monaghan, Bailieboro | Formerly Highway 28 |
| Peterborough County Road 29 | Lakefield Road Bridge Street Queen Street | Peterborough city limits | Highway 28 | Lakefield | Formerly Highway 28 |
| Peterborough County Road 30 | County Road 30 | the Trent River | Old Norwood Road | Trent River | |
| Peterborough County Road 31 | Hiawatha Line | Paudash Street, Hiawatha | County Road 2 | Hiawatha native reserve | |
| Peterborough County Road 32 | River Road Water Street | Peterborough city limits | County Road 29 | Lakefield | |
| Peterborough County Road 33 | County Road 33 | County Road 32 | Highway 28 | Lakefield | |
| Peterborough County Road 34 | Heritage Line Serpent Mounds Road | Serpent Mounds Park | Highway 7 | Lang, Keene, Serpent Mounds Park | |
| Peterborough County Road 35 | Keene Road Television Road | County Road 2 | the Trent Canal | Zion, Assumption, Peterborough | |
| Peterborough County Road 36 | County Road 36 | Kawartha Lakes city (former Victoria County) limits | Highway 28 | Nogies Creek, Flynns, Buckhorn, Burleighs Falls | Formerly Highway 36 |
| Peterborough County Road 37 | Lakehurst Road | Anchor Bay Road | County Road 36 | Buckhorn | |
| Peterborough County Road 38 | 2nd Line Road | County Road 4 | County Road 2 | Birdsalls Station, Warsaw | |
| Peterborough County Road 39 | Bensfort Road | County Road 2 | Highway 7 | Cold Springs | |
| Peterborough County Road 40 | Dummer Road County Road 40 | Highway 7 | County Road 6 | Norwood, Centre Dummer | |
| Peterborough County Road 42 | County Road 42 | County Road 45 | County Road 30 | Norwood, Trent River | |
| Peterborough County Road 44 | South Lake Road | County Road 46 | County Road 6 | none | bush route connecting Stony Lake and Havelock |
| Peterborough County Road 45 | Bridge Street North Albert Street East County Road 45 Victoria Street | the Trent River | Highway 7 | Hastings, Norwood | Formerly Highway 45 |
| Peterborough County Road 46 | Concession Street County Road 46 | Old Norwood Road | County Road 504 | Havelock, Rush Point, Round Lake, Oak Lake, Lasswade | |
| Peterborough County Road 47 | County Road 47 | County Road 44 | County Road 46 | none | minor connecting route |
| Peterborough County Road 48 | Mary Street County Road 48 | Highway 7 | Vansickle Road | Havelock, Chase Corners, Freeman Corners, Cordova Mines | |
| Peterborough County Road 50 | County Road 50 | Trent River Road | Highway 7 | Preneveau | |
| Peterborough County Road 52 | Jack Lake Road | Fire Route #88 | County Road 504 | Apsley, Jack Lake | |
| Peterborough County Road 54 | Balmer Road | County Road 620 | Pleasant Point Road | Chandos Lake, Little Loon Lake | |
| Peterborough County Road 56 | Northey's Bay Road | Highway 28 | County Road 6 | Woodview, Stonyridge, Petroglyphs Provincial Park | |
| Peterborough County Road 503 | Monck Road | Reid Street, Kinmount | White Boundary Road | Furnace Falls, Kinmount | Formerly Highway 503 |
| Peterborough County Road 504 | County Road 504 Wellington Street | Highway 28 | County Road 620 | Apsley, Lasswade, Owenbrook | Formerly Highway 504 |
| Peterborough County Road 507 | County Road 507 | County Road 36 | Fox Lake Drive | Flynns, Rockcroft, Mississauga Landing, Catchacoma | Formerly Highway 507 |
| Peterborough County Road 620 | County Road 620 | Highway 28 | County Road 504 | Clydesdale Lake, Glen Alda | Formerly Highway 620 |
| Peterborough County Road 620A | Burleigh Street | County Road 620 | County Road 504 | Apsley | Formerly Highway 620A |