September 2026

Costello

Sep 7 Mon
- Labor Day - No School
  Costello
Sep 9 Wed
- SIP Day - Early Dismissal
  Costello

http://cos.sd103.com

Costello Elementary School
4632 South Clyde Ave., Lyons, IL 60534
Phone: (708) 783-4300 | Fax: (708) 783-4605