Post Office
- Hammond Post Office 5530 Sohl Ave Hammond, IN
- Calumet City Post Office 1200 Ring Rd Calumet City, IL
- Wentworth Avenue Post Office 680 Wentworth Ave Calumet City, IL
- East Chicago Post Office 901 E Chicago Ave East Chicago, IN
- South Calumet Avenue Post Office 7142 Calumet Ave Hammond, IN