S
- Sabaskong Bay 35D
- Sabaskong Bay Indian Reserve No. 32C
- Sabaskong Bay Indian Reserve No. 35C
- Sabaskong Bay Indian Reserve No. 35F
- Sabaskong Bay Indian Reserve No. 35H
- Sable
- Sables-Spanish Rivers
- Sabourins Crossing
- Sachigo Lake
- Sachigo Lake 1
- Sachigo Lake Indian Reserve No. 3
- Sadowa
- Sagamok
- Sagamok Anishnawbek
- Saganaga Lake
- Saginaw
- Sahanatien
- Sailors Encampment
- Saintfield
- Saint Isidore
- Saint Johns
- Saint Lawrence
- Salem
- Salem Corners
- Salford
- Salisbury
- Salmon Point
- Salmonville
- Saltford
- Sam Lake
- Sand Banks
- Sand Bay
- Sand Bay Corner
- Sand Castle Beach
- Sandfield
- Sandfield Mills
- Sandford
- Sandhill
- Sandhurst
- Sandhurst Shores
- Sandison
- Sand Lake
- Sandown
- Sand Point
- Sandringham
- Sandtown
- Sandusk
- Sandwich
- Sandy Beach
- Sandy Bend
- Sandy Cove
- Sandy Cove
- Sandy Cove Acres
- Sandy Hill
- Sandy Hook
- Sandy Lake
- Sandy Point
- Sandy Point Beach
- Sans Souci
- Santoy
- Sapawe
- Saratoga
- Sarginson
- Sarnia
- Sarnia 45
- Sarsfield
- Sauble Beach
- Sauble Beach North
- Sauble Beach South
- Sauble Falls
- Saug-A-Gaw-Sing 1
- Saugeen 29
- Saugeen and Cape Croker Fishing Islands Indian Reserve No. 1
- Saugeen Hunting Grounds First Nations Reserve 60A
- Saugeen Shores
- Sault Ste. Marie
- Saurin
- Savanne
- Savant Lake
- Savoff
- Savoff West
- Sawlog Bay
- Sayers Mills
- Scarborough
- Scarborough Village
- Scarlet Park
- Schindelsteddle
- Schomberg
- Schomberg Heights
- Schreiber
- Schumacher
- Schutt
- Science Hill
- Scoble
- Scoble West
- Scone
- Scotch Block
- Scotch Block
- Scotch Bush
- Scotch Bush
- Scotch Corners
- Scotch Line
- Scotch Point
- Scotch Settlement
- Scotia
- Scotland
- Scots Block
- Scott Settlement
- Scott Settlement
- Scotts Landing
- Scottsville
- Scotty Springs
- Scudder
- Scugog
- Scugog Centre
- Scugog Island
- Scugog Point
- Scully
- Sea Breeze
- Seacliffe
- Seaforth
- Seagrave
- Searchmont
- Sebastopol
- Sebright
- Sebringville
- Seckerton
- Seebacks Hill
- Seeley
- Seeleys Bay
- Seguin
- Seguin Falls
- Seibert
- Seine River 22A2
- Seine River 23A
- Seine River 23B
- Seine River Village
- Selby
- Selim
- Selkirk
- Sellars
- Sellwood
- Selton
- Selton
- Selwyn
- Senecal
- Seouls Corners
- Separation Rapids
- Serpent River
- Serpent River 7
- Servos
- Sesekinika
- Seven Mile Narrows
- Severn
- Severn Bridge
- Severn Falls
- Seville
- Seymour Beach
- Shabaqua
- Shabaqua Corners
- Shady Nook
- Shakespeare
- Shallow Lake
- Shamokan
- Shamrock
- Shands
- Shand's Corner
- Shanes
- Shanick
- Shaniko
- Shanly
- Shannon Hall
- Shannons Corners
- Shannonville
- Shanty Bay
- Sharbot Lake
- Sharon
- Sharps Corners
- Sharpton
- Shawanaga 17
- Shawanaga Indian Reserve No. 17B
- Shawanaga Landing
- Shawmere
- Sheahan
- Sheatown
- Shebandowan
- Shebeshekong
- Shedden
- Sheffield
- Sheguiandah
- Sheguiandah 24
- Shekak
- Shelburne
- Sheldon
- Sheldon's Corners
- Sheppardton
- Shep's Subdivision
- Sheridan Park
- Sherkston
- Sherkston Beaches
- Sherwood
- Sherwood
- Sherwood, Jones and Burns
- Sherwood Springs
- Sherwood Village
- Sheshegwaning
- Sheshegwaning 20
- Shields Crossing
- Shillington
- Shiloh
- Shining Tree
- Shipka
- Shirley
- Shirleys Bay
- Shisler Point
- Shoal Lake
- Shoal Lake 34B2
- Shoal Lake Indian Reserve 37A
- Shoal Lake Indian Reserve No. 31J
- Shoal Lake Indian Reserve No. 34B1
- Shoal Lake Indian Reserve No. 39
- Shoal Lake (Part) 39a
- Shoal Lake (Part) 40
- Shore Acres
- Shouldice
- Showers Corners
- Shrewsbury
- Shrigley
- Shumka
- Shuniah
- Siberia
- Signet
- Silcote
- Sillsville
- Siloam
- Silver Bay
- Silver Birch Beach
- Silver Centre
- Silver Corners
- Silver Corners
- Silver Creek
- Silver Creek
- Silverdale
- Silver Dollar
- Silver Hill
- Silver Islet
- Silver Lake
- Silvermoon
- Silver Mountain
- Silvers Corners
- Silver Water
- Simcoe
- Simcoe Beach
- Simcoe Island
- Simcoe Lodge
- Simcoeside
- Simpson Corners
- Simpsons
- Sims
- Sims Locks
- Sinasac Corners
- Sinclair Shore
- Sinclairville
- Sine
- Singhampton
- Sioux Lookout
- Sioux Narrows
- Sioux Narrows - Nestor Falls
- Sistonens Corners
- Six Mile Corner
- Six Mile Lake
- Six Nations 40
- Six Nations Corner
- Sixty-Nine Corners
- Skead
- Skerryvore
- Skibi Lake
- Skibo
- Skipness
- Skye
- Slabtown
- Slabtown
- Slade
- Slate Falls
- Slate River Valley
- Sleeman
- Sleswick
- Sligo
- Sloan Circle
- Smithdale
- Smithfield
- Smith's Corners
- Smiths Falls
- Smith's Landing
- Smithville
- Smokehouse Island
- Smoky Falls
- Smooth Rock Falls
- Smooth Town
- Snake Falls
- Snake River
- Snedden
- Snelgrove
- Snowball
- Snowdons Corners
- Snow Road
- Snow Road Station
- Snow Valley
- Snowville
- Snug Harbour
- Snug Harbour
- Snug Haven
- Snyder
- Solina
- Solmesville
- Sombra
- Songis
- Sonya
- Soperton
- Sopher's Landing
- Sour Spring
- South Algona
- South Algonquin
- Southam
- Southampton
- South Augusta
- South Bay
- South Bay
- South Baymouth
- South Beach
- South Branch
- South Bruce
- South Bruce Peninsula
- South Buxton
- South Cayuga
- Southcote
- Southcott Pines
- South Dummer
- South Dundas
- South Elmsley
- South Fredericksburgh
- South Frontenac
- Southgate
- Southgate
- South Gillies
- South Glengarry
- South Gloucester
- South Gower
- South Huron
- South Lancaster
- South Magnetawan
- South March
- South Marysburgh
- South Middleton
- South Mindoka
- South Monaghan
- South Mountain
- South Napanee
- South Parkdale
- South Pelham
- South Porcupine
- South Portage
- South River
- South Riverdale
- South Stormont
- Southview Beach
- Southview Cove
- Southview Estates
- Southwest Middlesex
- Southwest Oxford
- South-West Oxford
- South Wilberforce
- Southwold
- Southwood
- Southwood
- South Woodslee
- South Wynhurst
- Sowden
- Sowerby
- Spaffordton
- Spanish
- Spanish Mills
- Spanish River
- Sparkle City
- Sparrow Lake
- Sparta
- Speedside
- Speersville
- Spencerville
- Speyside
- Spier
- Spotswood
- Spragge
- Spring Arbour
- Springbank
- Spring Bay
- Springbrook
- Spring Brook
- Spring Creek
- Springdale Park
- Springfield
- Springford
- Spring Hill
- Springhurst Beach
- Springmount
- Springtown
- Springvale
- Spring Valley
- Spring Valley
- Springville
- Springwater
- Springwater Lakes
- Spruce
- Sprucedale
- Spruce Green
- Spruce Hedge
- Sprucewood
- Spry
- Squire
- Squires Beach
- Squirrel Depot
- Squirrel Town
- Stackpool
- Staffa
- St. Agatha
- Stag Island
- St-Albert
- St-Amour
- Stampville
- St. Andrews
- St. Andrew-Windfields
- Stanley
- Stanley Corners
- Stanleydale
- Stanley House
- Stanleyville
- St. Anns
- Stanton
- Stanwood
- Stapledon
- Staples
- Star
- Star Corners
- Stardale
- Starkville
- Starrat
- Starratt-Olsen
- Starr's Beach
- Starrview Acres
- St. Augustine
- Stavert
- Stayner
- St-Bernardin
- St. Catharines
- St. Charles
- St. Christopher
- St. Clair
- St. Clair Beach
- St. Clements
- St. Cloud
- St. Columban
- St. Davids
- Ste-Anne-de-Prescott
- Steel
- Steeles
- Steenburg
- Steenburg Lake
- Steep Rock Lake
- Stella
- St. Elmo
- St. Elmo
- Stephen's Bay
- Stepping Stone Island
- Stepstone
- Ste-Rose-de-Prescott
- St-Eugène
- Stevens
- Stevenson
- Stevensville
- Stewart
- Stewart Crossing
- Stewart Farm
- Stewart Hall
- Stewart Heights
- Stewarts Glen
- Stewarttown
- Stewartville
- St. George
- St. George Brant
- St. Helens
- Stimson Diamond
- Stinson
- Stirling
- Stirling Falls
- Stirling-Rawdon
- Stirton
- Stittsville
- St. Ives
- St. Jacobs
- St. Joachim
- St. Johns
- St. John's
- St. Joseph
- St. Joseph
- St. Lawrence
- St. Lawrence Court
- St. Lawrence Woods
- St. Leonards Island
- St. Marys
- Stockdale
- Stoco
- Stokes Bay
- St. Ola
- Stonebrook
- Stonecliffe
- Stonegate-Queensway
- Stoneleigh
- Stone Mills
- Stoneridge
- Stones Corners
- Stoney Creek
- Stoney Creek, Middlesex County
- Stoney Point
- St-Onge
- Stonyridge
- Stonywood
- Storie
- Storkson's Corner
- Storms Corners
- Story
- Stouffville
- St-Pascal
- St. Pauls
- St. Pauls Station
- St. Pie X
- Strabane
- Straders Hill
- Straffordville
- Strange
- Strangfield
- St. Raphaels
- Strasburg
- Stratford
- Strathallan
- Strathavon
- Strathburn
- Strathcona Park
- Strathmore
- Strathnairn
- Strathroy
- Strathroy-Caradoc
- Strathtay
- Stratton
- Strattonville
- Streetsville
- Strickland
- Stromness
- Strong
- Strongville
- Stroud
- St. Stephens
- St. Thomas
- Stuart
- Studio District
- Stupart
- Sturgeon Bay
- Sturgeon Beach
- Sturgeon Falls
- Sturgeon Falls Indian Reserve No. 23
- Sturgeon Glen
- Sturgeon Point
- Sturgeon River
- St. Williams
- Sucker Creek 23
- Sucker Creek Landing
- Sudbury
- Sudbury, Unorganized, North Part
- Sugarbush
- Sugar Island Indian Reserve No. 37A
- Sugarloaf Hill
- Sullivan Mills
- Sulphide
- Sultan
- Summer Beaver
- Summerhill
- Summerlea
- Summers Corners
- Summerstown
- Summerstown Station
- Summit
- Summit, Algoma District
- Sunbury
- Sunderland
- Sundridge
- Sunkist Beach
- Sunnidale
- Sunnidale Corners
- Sunninghill
- Sunnybrae
- Sunny Plains
- Sunnyside
- Sunny Slope
- Sunrise Beach
- Sunset Beach
- Sunset Beach
- Sunset Beach
- Sunset Corners
- Sunset Park
- Sunset View
- Sunshine
- Sunshine
- Sunstrum
- Suomi
- Superior Junction
- Sutorville
- Sutton
- Sutton Bay
- Sutton West
- Swain Post
- Swan Crossing
- Swan Lake Indian Reserve No. 29
- Swastika
- Sweaburg
- Sweets Corners
- Sweets Corners
- Swift Rapids
- Swindon
- Swinton Park
- Swiss Meadows
- Switzerville
- Swords
- Sydenham
- Sykeston
- Sylvan
- Sylvan Valley
- Sylvanwood
