Search for ZIP codes online by entering as much information as you can about an address or area into a ZIP code database. The database will return results for the ZIP code of that address or area. Many such databases exist online and can be used for free, such as http://www.unitedstateszipcodes.org/.Continue Reading
Choose an online ZIP code search tool or postal code map. Many free to use ones are available.
Enter the information you have about the area or address you want to find a ZIP code for. Enter the street name and city name to get an exact ZIP code, or enter the name of a state to pull up a list or map of ZIP codes in the area.
Review the results and refine your search as necessary to find the ZIP code you want.