Postal history – Postmaster Finder

Post Offices by ZIP Code

Enter the first three digits of a ZIP Code
Enter the first three digits of a ZIP Code

Enter three digits in the from and to fields, and click Search to see a list of Post Offices in our database in that range. The list will include the establishment date where research is complete on an office and the discontinuance date, if applicable.

Important: ZIP Codes recorded in this database may no longer be current. To look up a current ZIP Code, visit Look up a ZIP Code.

Remember! Many discontinued Post Offices are not listed. See the FAQs about Postmaster Finder.

For ZIP Codes -

                   

You may need to scroll the results table left and right to see all of the columns.

ZIP Code Post Office State Date Established Date Discontinued