Third-class mail inundated the Chicago post office when businesses sent advertisements in unprecedented numbers, using ZIP codes for the first time to reach local customers.

The U.S. Postal Service is considering closing more than 3,600 post offices nationwide. The points below are centered on the ZIP Codes where those offices are located (not the actual addresses ...

A new U.S. Postal Service tracker lets you see delivery statistics for yourself.

This has been as issue in some communities throughout the nation for decades, including in Anne Arundel County, with some ...

ZIP codes will remain fixed to specific geographic locations; the post office has no plans to allow Americans to take their ZIP codes with them, wherever they go. Read Seabrook's Story: ...

In response to numerous complaints and requests from residents and businesses over the past several years, University Park officials adopted a resolution Tuesday calling for the establishment of a … ...