Illinois Library Hours
Quick Facts
- 10,000+ libraries in our database across 50+ countries
- Updated monthly with verified opening hours
- 98% accuracy rate based on user feedback
Complete guide to library hours across Illinois including Chicago Public Library system, world-class university libraries, and public libraries throughout the Prairie State.
Chicago Area Libraries
Chicago Public Library - Harold Washington
Chicago's flagship library in the Loop
University of Chicago Library
Regenstein Library and system
Northwestern University Library
University Library system in Evanston
Illinois State University Libraries
University of Illinois Urbana-Champaign
Main Library and 40+ departmental libraries
University of Illinois Chicago
Richard J. Daley Library
Illinois State University
Milner Library
Southern Illinois University
Morris Library
Major Public Library Systems
Chicago Public Library
81 locations throughout Chicago
Branches: Vary by location
Cook County Public Library
Suburban Chicago library system
Smaller branches: Limited hours
Peoria Public Library
Central Illinois library system
Branches: Mon-Fri 10 AM - 8 PM
Illinois Library Regions
Chicagoland Area
Cook, DuPage, Lake, Will Counties
- Chicago Public Library (81 branches)
- University of Chicago
- Northwestern University
- DePaul University
Central Illinois
Champaign, Peoria, Springfield
- UIUC Library System
- Illinois State University
- Peoria Public Library
- Springfield libraries
Southern Illinois
Carbondale, Cairo, Metro East
- Southern Illinois University
- Regional library systems
- Community college libraries
- Rural library districts
Verified Info: Our team personally contacts libraries to verify hours. Data last confirmed: December 2025
Common Questions About Illinois Libraries
What time do libraries open in Illinois?
Most public libraries in Illinois open at 9:00 AM or 10:00 AM on weekdays. Weekend hours typically start at 10:00 AM or 11:00 AM. Academic and university libraries may open earlier, around 7:00 AM or 8:00 AM during the semester.
Are Illinois libraries open on weekends?
Yes, most Illinois public libraries are open on Saturdays from 9:00 AM to 5:00 PM. Sunday hours vary by location, with many libraries operating reduced hours (12:00 PM to 5:00 PM) or remaining closed.
Do I need a library card to visit Illinois libraries?
No, you can visit and use library facilities without a card. However, borrowing books, accessing computers, and using certain services require a free library card. Residents can get one with valid ID and proof of address.