The U.S. Post Office in Joliet, Illinois, is a two-story, building designed by James Knox Taylor.

Plans for the Post Office were made in 1899 when Congress approved $100,000 for its construction.

Joliet's rapid growth in the early 20th century necessitated an expansion, and Congress allowed $185,000 for additional land purchase and post office expansion.

[2] It was added to the National Register of Historic Places the year it closed.

This article about a property in Will County, Illinois on the National Register of Historic Places is a stub.