Costco locations · Ontario
Costco locations in Ontario
Ontario has 43 Costco locations: 38 regular warehouses and 5 Business Centres in 32 cities. 31 have a confirmed Costco gas station. Warehouses are open 9:00 a.m. to 8:30 p.m. on weekdays and 9:00 a.m. to 7:00 p.m. on weekends.
Addresses and services checked against Costco.ca on Oct 1, 2026.
Find the nearest Costco in Ontario
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Every Costco in Ontario
| Location | Address | Phone | Gas station |
|---|---|---|---|
| Costco Ajax | 150 Kingston Rd E, Ajax L1Z 1E5 | (905) 619-6677 | Yes |
| Costco Ancaster | 100 Legend Crt, Ancaster L9K 1J3 | (905) 304-0344 | Yes |
| Costco Barrhaven | 4315 Strandherd Dr, Nepean K2J 6E5 | (613) 714-0913 | Yes |
| Costco Barrie | 41 Mapleview Dr E, Barrie L4N 9A9 | (705) 728-2350 | Yes |
| Costco Brampton | 100 Biscayne Cres, Brampton L6W 4S1 | (905) 450-9300 | No |
| Costco Brantford | 175 Roy Blvd, Brantford N3R 7K1 | (226) 401-0019 | Yes |
| Costco Burlington | 1225 Brant St, Burlington L7P 1X7 | (905) 336-6714 | Yes |
| Costco Central Mississauga | 1570 Dundas St E, Mississauga L4X 1L4 | (905) 566-2400 | Yes |
| Costco Downsview | 100 Billy Bishop Way, North York M3K 2C8 | (416) 635-8175 | No |
| Costco East Gwillimbury Business CentreBusiness Centre | 18182 Yonge St., East Gwillimbury L9N 0J3 | (289) 319-4556 | Yes |
| Costco East Markham | 65 Kirkham Dr, Markham L3S 0A9 | (905) 201-3502 | No |
| Costco Etobicoke | 50 Queen Elizabeth Blvd, Etobicoke M8Z 1M1 | (416) 251-2832 | Yes |
| Costco Gloucester | 1405 Blair Towers Place, Gloucester K1J 1A5 | (613) 691-7607 | Yes |
| Costco Gloucester Business CentreBusiness Centre | 1900 Cyrville Rd, Gloucester K1B 1A5 | (343) 771-2100 | No |
| Costco Guelph | 19 Elmira Rd S, Guelph N1K 0B6 | (519) 780-5700 | Yes |
| Costco Kanata | 770 Silver Seven Rd, Kanata K2V 0A1 | (613) 270-5550 | Yes |
| Costco Kingston | 1015 Centennial Dr, Kingston K7P 3B7 | (613) 549-2527 | No |
| Costco Kitchener | 4438 King St E, Kitchener N2P 2G4 | (519) 650-3330 | Yes |
| Costco Markham | 1 Yorktech Dr, Markham L6G 1A6 | (905) 477-5718 | No |
| Costco Mississauga Business CentreBusiness Centre | 3115 Argentia Road, Mississauga L5N 8E1 | (289) 334-8984 | No |
| Costco Nepean | 1849 Merivale Rd, Nepean K2G 1E3 | (613) 727-4786 | Yes |
| Costco Newmarket | 107 Harry Walker Parkway S, Newmarket L3Y 7B3 | (289) 319-4500 | Yes |
| Costco Niagara Falls | 7500 Pin Oak Dr, Niagara Falls L2H 2E9 | (365) 447-0200 | Yes |
| Costco North London | 693 Wonderland Rd N, London N6H 4L1 | (519) 474-5301 | Yes |
| Costco North Mississauga | 5900 Rodeo Dr, Mississauga L5R 3S9 | (905) 568-4828 | Yes |
| Costco North Oshawa | 100 Windfields Farm Dr E, Oshawa L1L 0R8 | (289) 316-4489 | Yes |
| Costco Northwest Toronto | 2260 Islington Ave, Etobicoke M9W 3W6 | (647) 805-8701 | Yes |
| Costco Northwest Vaughan | 55 New Huntington Rd, Woodbridge L4H 0S8 | (289) 459-0921 | Yes |
| Costco Orillia | 625 University Ave, Orillia L3V 0Y7 | (705) 418-1706 | Yes |
| Costco Oshawa | 130 Ritson Rd N, Oshawa L1G 0A6 | (905) 404-4050 | Yes |
| Costco Peterborough | 485 The Parkway, Peterborough K9J 0B3 | (705) 750-2600 | Yes |
| Costco Richmond Hill | 35 John Birchall Rd, Richmond Hill L4S 0B2 | (905) 780-2100 | No |
| Costco Scarborough | 1411 Warden Ave, Scarborough M1R 2S3 | (416) 288-0033 | Yes |
| Costco Scarborough Business CentreBusiness Centre | 50 Thermos Rd, Scarborough M1L 0E6 | (647) 484-5840 | No |
| Costco South London | 3140 Dingman Dr, London N6E 3W8 | (519) 680-1027 | Yes |
| Costco South Mississauga | 3180 Laird Rd, Mississauga L5L 6A5 | (905) 828-3340 | No |
| Costco St. Catharines Business CentreBusiness Centre | 3 North Service Rd, St. Catharines L2N 7R1 | (289) 434-6011 | No |
| Costco Stoney Creek | 1330 South Service Rd, Stoney Creek L8E 5C5 | (289) 335-4820 | Yes |
| Costco Sudbury | 1465 Kingsway, Sudbury P3B 0A5 | (705) 524-8255 | Yes |
| Costco Thorncliffe Park | 42 Overlea Blvd, Toronto M4H 1B6 | (647) 265-9377 | No |
| Costco Vaughan | 71 Colossus Dr, Woodbridge L4L 9J8 | (905) 264-8337 | Yes |
| Costco Waterloo | 930 Erb St W, Waterloo N2T 0C3 | (226) 215-1150 | Yes |
| Costco Windsor | 4411 Walker Rd, Windsor N8W 3T6 | (519) 972-1899 | Yes |
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Frequently asked questions
How many Costco locations are in Ontario?
43: 38 regular warehouses and 5 Business Centres, in 32 cities.
How many Costco gas stations are in Ontario?
31 confirmed, as of Oct 1, 2026. Locations we have not confirmed are marked on the list.
What are Costco hours in Ontario?
Regular warehouses are open 9:00 a.m. to 8:30 p.m. Monday to Friday and 9:00 a.m. to 7:00 p.m. on weekends; gas stations open at 6:00 a.m.
Where are the Costco Business Centres in Ontario?
East Gwillimbury, Gloucester, Mississauga, Scarborough, St. Catharines. Business Centres open at 7:00 a.m. Monday to Saturday.