District 99 Office Location and Hours
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Administrative Service Center
6301 Springside Avenue
Downers Grove, IL 60516
Phone: (630) 795-7100
communications@csd99.org
Regular Office Hours During the School Year: Monday - Friday, 7:30 a.m. to 4 p.m.
Summer Office Hours: Monday - Thursday, 7 a.m. - 4 p.m.
