Library Services

Deer Run Branch
1300 North Main, O’Fallon, MO
63366
636-978-3251 or 636-980-1332
Mon-Thur: 9am-9pm; Fri-Sat: 9am-6pm; Sun: 1pm-5pm
Main Headquarters St. Charles City-County Library District
77 Boone Hills Drive, P.O. Box 529, St. Peters, MO 63376
Middendork – Kredell Branch
2750 Hwy K, O’Fallon, MO 63366
636-978-7926 or 636-272-4999
Mon-Thur: 9am-9pm; Fri-Sat: 9am-6pm; Sun: 1pm-5pm