Cornwall Postal Codes
Below are the public Forward Sortation Areas (FSAs) for Cornwall. or enter an address in the search bar below to find its regional prefix.
Find Forward Sortation Area (FSA) by Address
Due to open-data restrictions, complete 6-character codes are limited. Enter a Canadian address below to find its regional Forward Sortation Area (FSA) prefix.
Editor's Note on Cornwall Postal Codes
Cornwall zip codes vary with locations. They use contain either K6H, K6J, or K6K as their prefix. The local units of neighbouring streets are often the same. Similar to other Canadian cities, Cornwall postal codes contain 6 alpha-numerical digits.
Cornwall is a city in Eastern Ontario, Canada, situated where the provinces of Ontario and Quebec and the state of New York converge.
Demographics & Economic Profile
Forward Sortation Areas (FSAs) in Cornwall
Other Municipalities in Ontario
View AllFrequently Asked Questions
What is the postal code for Cornwall, Ontario? ▾
Cornwall is covered by 19 Forward Sortation Area (FSA) prefixes, including: K6B, K6C, K6E, K6G, K6H. To find your exact 6-character postal code, you will need your specific street address.
How do Canadian postal codes work in Cornwall? ▾
Like all Canadian postal codes, codes in Cornwall are formatted as A1A 1A1. The first three characters represent the Forward Sortation Area (FSA), which identifies a specific region or neighborhood in Cornwall. The last three characters represent the Local Delivery Unit (LDU), which identifies the exact street or building.
What is the population of Cornwall? ▾
According to Statistics Canada, Cornwall has an estimated population of 35,445 residents.