Ontario Zip code

Ontario Zip code / Ontario Postal code

Ontario Zip code, introduced by the United States Postal Service (USPS) in 1963, are numerical codes used to identify specific geographic regions for mail delivery. and Ontario zip code used a 5-digit postal format XXXXX, The first 3 digit represent the postal delivery zone code, and last 2 digit represent the Post office in the Ontario.

There are total 21 zipcode code in Ontario and range of zipcode is 14424 to 14585. View all the zip code on map of Ontario by clicking on our mapview appliction.

1. What is the format of zip codes in Ontario?
Ontario zip codes follow the standard 5-digit format, starting with the number - 144.

2. How many zip codes are there in Ontario?
There are approximately 21 zip codes in Ontario, covering a vast area of the county.

3. Do all areas in Ontario have zip codes?
Yes, almost all populated areas in Ontario are assigned a unique zip code for mail delivery purposes.