Byron Post Office

The Byron Post Office delivers mail to all households and businesses in the 61010 zip code, including four rural routes and over 1,400 post office boxes. Post office boxes are available in four sizes.

The Byron office employs eight rural carriers and substitutes, and three clerks.

Rural route carriers also provide all the services available at your post office window, such as selling stamps, money order purchases, and mailing packages. Please contact the post office for details.

Byron Post Office
232 N. Union Street
Byron, IL 61010-9998
1-800-ASK-USPS

Hours of Operation
Lobby Hours:
24 Hours - 7 Days a Week
Access to boxes, stamp vending machine and scales.

Window Hours:
8:30am till 5pm Monday-Friday
8:30am till 12pm on Saturdays
(Closed legal holidays and Sundays)

Additional Information:
- Vending Machine Locations:
Main Post Office

- Collection Boxes/Pick-Up Times:
Main Lobby 5pm Monday-Friday
12 PM on Saturdays

Drive-Up Boxes Outside Post Office
5pm Monday-Friday
12pm Saturday