A ZIP Code is a five or nine-digit number assigned to every mailing address in the United States by the United States Postal Service (USPS). A city can have a single or multiple ZIP Codes assigned to it, and ZIP Codes can also overlap between cities. If you want to find ZIP Codes by city, the USPS offers an Online ZIP Code look-up tool.
Go to the Online USPS ZIP Code look-up tool.
Click the "Search By City" tab.
Enter the city and state you want to find ZIP Codes for in the appropriate fields.
Click the "Submit" button to display a list of all ZIP Codes associated with that city.
