St. Catharines Postal Codes
Below are the public Forward Sortation Areas (FSAs) for St. Catharines. 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.
Demographics & Economic Profile
Forward Sortation Areas (FSAs) in St. Catharines
Other Municipalities in Ontario
View AllFrequently Asked Questions
What is the postal code for St. Catharines, Ontario? ▾
St. Catharines is covered by 0 Forward Sortation Area (FSA) prefixes. To find your exact 6-character postal code, you will need your specific street address.
How do Canadian postal codes work in St. Catharines? ▾
Like all Canadian postal codes, codes in St. Catharines are formatted as A1A 1A1. The first three characters represent the Forward Sortation Area (FSA), which identifies a specific region or neighborhood in St. Catharines. The last three characters represent the Local Delivery Unit (LDU), which identifies the exact street or building.
What is the population of St. Catharines? ▾
According to Statistics Canada, St. Catharines has an estimated population of 136,803 residents.