Post Offices List in Kendall County, Illinois:
| Bristol Post Office | 11 Cannonball Trl, Bristol, IL 60512 |
| Millbrook Post Office | 27 Harris Ave, Millbrook, IL 60536 |
| Montgomery Post Office | 1899 Village Center Pkwy, Montgomery, IL 60538 |
| Newark Post Office | 11 E Main St, Newark, IL 60541 |
| Oswego Post Office | 26 S Madison St, Oswego, IL 60543 |
| Plano Post Office | 102 N Center St, Plano, IL 60545 |
| Yorkville Post Office | 601 E Countryside Pkwy, Yorkville, IL 60560 |