USPS - Postal Service in Waterloo - Locations & Hours
| Name | Address | Phone | |
|---|---|---|---|
| USPS - Post Office - Waterloo | 305 E 3rd St | 618-939-7317 | |
| USPS Mail Collection/Drop Box - 529 S Church St | 529 S Church St | ||
| USPS Mail Collection/Drop Box - 901 Illinois Ave | 901 Illinois Ave | ||
| USPS Mail Collection/Drop Box - 961 N Market St | 961 N Market St | ||