List of Ontario federal electoral districts

The Ontario federal electoral districts each elect one representative to the House of Commons. These districts are defined by Elections Canada. Their boundaries are also used for provincial electoral districts, with exceptions in Northern Ontario.

Current electoral districts

The following electoral districts are currently represented in the House of Commons.

Title	Population	Member
Ajax	137,217	Mark Holland
Algoma—Manitoulin—Kapuskasing	79,483	Carol Hughes
Aurora—Oak Ridges—Richmond Hill	115,227	Tony Van Bynen
Barrie—Innisfil	109,286	John Brassard
Barrie—Springwater—Oro-Medonte	100,788	Doug Shipley
Bay of Quinte	109,735	Neil Ellis
Beaches—East York	109,468	Nathaniel Erskine-Smith
Brampton Centre	102,270	Ramesh Sangha
Brampton East	122,000	Maninder Sidhu
Brampton North	118,180	Ruby Sahota
Brampton South	121,188	Sonia Sidhu
Brampton West	130,000	Kamal Khera
Brantford—Brant	130,296	Larry Brock
Bruce—Grey—Owen Sound	106,475	Alex Ruff
Burlington	120,569	Karina Gould
Cambridge	111,693	Bryan May
Carleton	102,918	Pierre Poilievre
Chatham-Kent—Leamington	111,866	Dave Epp
Davenport	108,475	Julie Dzerowicz
Don Valley East	93,007	Yasmin Ratansi
Don Valley North	103,073	Han Dong
Don Valley West	99,820	Rob Oliphant
Dufferin—Caledon	116,341	Kyle Seeback
Durham	115,395	Erin O'Toole
Eglinton—Lawrence	113,150	Marco Mendicino
Elgin—Middlesex—London	110,109	Karen Vecchio
Essex	120,477	Chris Lewis
Etobicoke Centre	114,910	Yvan Baker
Etobicoke—Lakeshore	115,437	James Maloney
Etobicoke North	117,601	Kirsty Duncan
Flamborough—Glanbrook	97,081	David Sweet
Glengarry—Prescott—Russell	106,240	Francis Drouin
Guelph	121,688	Lloyd Longfield
Haldimand—Norfolk	108,051	Diane Finley
Haliburton—Kawartha Lakes—Brock	110,182	Jamie Schmale
Hamilton Centre	101,932	Matthew Green
Hamilton East—Stoney Creek	107,786	Bob Bratina
Hamilton Mountain	103,615	Scott Duvall
Hamilton West—Ancaster—Dundas	109,535	Filomena Tassi
Hastings—Lennox and Addington	92,528	Derek Sloan
Humber River—Black Creek	108,198	Judy Sgro
Huron—Bruce	104,842	Ben Lobb
Kanata—Carleton	100,846	Karen McCrimmon
Kenora	55,977	Eric Melillo
Kingston and the Islands	116,996	Mark Gerretsen
King—Vaughan	109,235	Deb Schulte
Kitchener Centre	102,433	Raj Saini
Kitchener—Conestoga	93,827	Tim Louis
Kitchener South—Hespeler	97,673	Marwan Tabbara
Lambton—Kent—Middlesex	105,919	Lianne Rood
Lanark—Frontenac—Kingston	98,409	Scott Reid
Leeds-Grenville-Thousand Islands and Rideau Lakes	100,546(2016)	Michael Barrett
London—Fanshawe	119,334	Lindsay Mathyssen
London North Centre	118,079	Peter Fragiskatos
London West	119,090	Kate Young
Markham—Stouffville	109,780	Helena Jaczek
Markham—Thornhill	99,078 (2016)	Mary Ng
Markham—Unionville	123,318	Bob Saroya
Milton	88,065	Adam van Koeverden
Mississauga Centre	118,756	Omar Alghabra
Mississauga East—Cooksville	121,792	Peter Fonseca
Mississauga—Erin Mills	117,199	Iqra Khalid
Mississauga—Lakeshore	118,893	Sven Spengemann
Mississauga—Malton	118,046	Navdeep Bains
Mississauga—Streetsville	118,757	Gagan Sikand
Nepean	104,775	Chandra Arya
New Tecumseth—Gwillimbury	119,360	Scot Davidson
Newmarket—Aurora	109,457	Tony Van Bynen
Niagara Centre	105,860	Vance Badawey
Niagara Falls	128,357	Tony Baldinelli
Niagara West	86,533	Dean Allison
Nickel Belt	90,962	Marc Serré
Nipissing—Timiskaming	90,996	Anthony Rota
Northumberland—Peterborough South	107,840	Phillip Lawrence
Oakville	182,520	Anita Anand
Oakville North—Burlington	114,378	Pam Damoff
Orléans	119,247	Marie-France Lalonde
Oshawa	159,458	Colin Carrie
Ottawa Centre	113,619	Catherine McKenna
Ottawa South	121,894	David McGuinty
Ottawa—Vanier	110,999	Mona Fortier
Ottawa West—Nepean	111,881	Anita Vandenbeld
Oxford	108,656	Dave MacKenzie
Parkdale—High Park	105,103	Arif Virani
Parry Sound-Muskoka	91,263	Scott Aitchison
Perth Wellington	104,912	John Nater
Peterborough—Kawartha	115,269	Maryam Monsef
Pickering—Uxbridge	109,344	Jennifer O'Connell
(federal electoral district)|Renfrew—Nipissing—Pembroke	102,537	Cheryl Gallant
Richmond Hill	108,658	Majid Jowhari
St. Catharines	110,596	Chris Bittle
Sarnia—Lambton	106,293	Marilyn Gladu
Sault Ste. Marie	82,052	Terry Sheehan
Scarborough—Agincourt	104,499	Jean Yip
Scarborough Centre	108,826	Salma Zahid
Scarborough-Guildwood	101,914	John McKay
Scarborough North	101,080	Shaun Chen
Scarborough—Rouge Park	102,646	Gary Anandasangaree
Scarborough Southwest	106,733	Bill Blair
Simcoe—Grey	116,307	Terry Dowdall
Simcoe North	108,672	Bruce Stanton
Spadina—Fort York	82,480	Adam Vaughan
Stormont—Dundas—South Glengarry	100,913	Eric Duncan
Sudbury	92,048	Viviane Lapointe
Thornhill	110,427	Peter Kent
Thunder Bay—Rainy River	82,984	Don Rusnak
Thunder Bay—Superior North	82,827	Patty Hajdu
Timmins-James Bay	83,104	Charlie Angus
Toronto Centre	103,805	Bill Morneau
Toronto—Danforth	104,017	Julie Dabrusin
Toronto—St. Paul's	103,983	Carolyn Bennett
University—Rosedale	98,605	Chrystia Freeland
Vaughan—Woodbridge	105,450	Francesco Sorbara
Waterloo	110,134	Bardish Chagger
Wellington—Halton Hills	115,880	Michael Chong
Whitby	122,022	Ryan Turnbull
Willowdale	109,680	Ali Ehsassi
Windsor—Tecumseh	115,528	Irek Kusmierczyk
Windsor West	118,973	Brian Masse
York Centre	100,277	Michael Levitt
York South—Weston	116,606	Ahmed Hussen

Notes

1. Electoral districts and members per Elections Canada for 2015,^[1] 2017^[2] and 2018.^[3]
2. Populations are from the 2011 Census except where noted.