Please complete your profile to unlock commenting and other important features.

Please select your date of birth for special perks on your birthday. Your username will be your unique profile link and will be publicly used in comments.
Narcity Pro

This is a Pro feature.

Time to level up your local game with Narcity Pro.

Pro

$5/month

$40/year

  • Everything in the Free plan
  • Ad-free reading and browsing
  • Unlimited access to all content including AI summaries
  • Directly support our local and national reporting and become a Patron
  • Cancel anytime.
For Pro members only Pro
Summary

Ontario's newest Costco store officially has an opening date and it's going to be massive

It will soon be a reality! 🤩

The front of a Costco Wholesale store in Calgary, Alberta.

Ontario's newest Costco store officially has an opening date.

Oasisamuel | Dreamstime
Writer

A brand-new Costco is getting ready to open its doors in Ontario, and anticipation is definitely building.

The store has been set to launch before the end of summer, and now we have an official opening date.

Once open, this will be the 42nd Costco location in the province, adding even more convenience for members across the GTA.

The retail giant officially confirmed the upcoming launch of a new store in Newmarket on its website. It will open its doors for the first time on Wednesday, August 20.

Its address will be at 107 Harry Walker Parkway S., Newmarket, ON, just off the 404 Highway near Davis Drive — a prime spot for commuters and local shoppers alike.

The store will open Monday through Friday from 9 a.m. to 8:30 p.m., and on Saturdays and Sundays from 9 a.m. to 6 p.m.

This isn't your average warehouse either. At around 15,500 square metres, it'll rank among the largest Costco locations in Ontario.

As expected, the store will carry a wide range of products, including groceries, electronics, furniture, appliances, apparel, and seasonal goods. Shoppers can also look forward to a pharmacy, food court, self-checkouts, and a full-service gas station.

According to Costco, this location will also feature a bakery, a fresh produce section, a rotisserie chicken counter, a service deli, and a fresh meat department.

It will be the second Costco location in the Newmarket area, joining the East Gwillimbury warehouse just north of town. The closest stores are more than 30 minutes away in Richmond Hill, Markham, and Vaughan — so this one's expected to be busy from day one.

This also marks the second new Costco to open in Ontario in under a year. Back in November, Brantford welcomed its own new location, complete with 813 parking spaces, 24 gas pumps, and the province's first in-store sushi counter.

The new location is expected to draw large crowds on opening day, with eager shoppers ready to take full advantage of Costco's signature bulk deals and member benefits.

All Costco locations across Ontario:

  • Ajax
  • Ancaster
  • Barrhaven
  • Barrie
  • Brampton
  • Brantford
  • Burlington
  • C. Mississauga
  • Downsview
  • E. Markham
  • East Gwillimbury
  • Etobicoke
  • Gloucester
  • Gloucester Business Centre
  • Guelph
  • Kanata
  • Kingston
  • Kitchener
  • Markham
  • N. London
  • N. Mississauga
  • N. Oshawa
  • N.W. Toronto
  • N.W. Vaughan
  • Nepean
  • Niagara Falls
  • Orillia
  • Oshawa
  • Peterborough
  • Richmond Hill
  • S. London
  • S. Mississauga
  • Scarborough
  • Scarborough Business Centre
  • St. Catharines Business Centre
  • Stoney Creek
  • Sudbury
  • Thorncliffe Park
  • Vaughan
  • Waterloo
  • Windsor

In the meantime, Costco's July flyer is now live, featuring deals on groceries, household essentials, and health and beauty products.

Wondering if a membership is worth it for the gas savings alone? Narcity recently broke it all down — see what we found out here.

This article's cover image was used for illustrative purposes only.

AI tools may have been used to support the creation or distribution of this content; however, it has been carefully edited and fact-checked by a member of Narcity's Editorial team. For more information on our use of AI, please visit our Editorial Standards page.

  • Originally from Ireland, Tomás Keating is a Toronto-based Contributing Writer for Narcity. After graduating with a Masters in Journalism from the University of Galway in 2019, Tomás utilized his passion for news, current affairs, pop culture and sports as a digital journalist before relocating to Toronto in 2024. In his spare time, Tomás loves exploring the city, going to the cinema and playing Gaelic football with his local GAA club in Toronto.

This monthly winter forecast for Ontario tells you which days will be snowy and 'very cold'

A lot of snowstorms and snowy periods are expected in Ontario!

The world's friendliest cities were ranked and only one Canadian spot made the list

Canada's reputation for being friendly might not be that true! 🇨🇦

Bath & Body Works has this deal on three-wick candles and you can shop new holiday scents

There's a certain way to get the deal depending on how you shop!

11 Ontario driving laws you might be breaking that carry fines up to $20K

Some of these could cost you way more than you think. 🚗