Post Offices List in Lewis County, Missouri:
| Canton Post Office | 500 Lewis St, Canton, MO 63435 |
| Ewing Post Office | 106 S Gilead St, Ewing, MO 63440 |
| La Belle Post Office | 109 N 3rd St, La Belle, MO 63447 |
| La Grange Post Office | 202 N Main St, La Grange, MO 63448 |
| Lewistown Post Office | 118 W Main St, Lewistown, MO 63452 |
| Monticello Post Office | 101 E Lafayette St, Monticello, MO 63457 |