Ontario Postal Codes, Canada

Postal codes for Ontario range from K0A to P9N 0J2 in Canada. To find exact ZIP codes and postcodes within Ontario, choose from the districts listed below.

Districts in Ontario

Ontario on the Map

The map above highlights the geographic boundaries of the Ontario province in Canada. The postal codes listed on this page correspond to specific towns, villages, and post offices within this area.

What to Know About Ontario

Key Facts

Ontario is a province located in east-central Canada, bordered by the province of Manitoba to the west and Quebec to the east, with the United States to the south across the Great Lakes and the Hudson Bay to the north. It is Canada's second-largest province by area, covering approximately 1,076,395 square kilometers, and is the most populous province with over 14 million residents, representing nearly 40% of Canada's total population. Ontario is divided into 49 census divisions, which include counties, districts, regional municipalities, and single-tier municipalities, with its capital and largest city, Toronto, serving as the economic and cultural hub of the province. The province features diverse geography, from the mineral-rich Canadian Shield in the north to the fertile lowlands of the south, and is home to key waterways like the Great Lakes and the Ottawa River. For detailed postal code information and regional data across Ontario's municipalities and communities, this resource provides comprehensive access to support navigation, logistics, and local services.

Neighboring Regions

* Manitoba

* Quebec