Johnston Zip code

Johnston Zip code / Johnston Postal code

Johnston 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 Johnston 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 Johnston.

There are total 9 zipcode code in Johnston and range of zipcode is 73432 to 74856. View all the zip code on map of Johnston by clicking on our mapview appliction.

1. What is the format of zip codes in Johnston?
Johnston zip codes follow the standard 5-digit format, starting with the number - 734.

2. How many zip codes are there in Johnston?
There are approximately 9 zip codes in Johnston, covering a vast area of the county.

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