| Acorn Public Library District • ADS | XBR | |
| Alsip-Merrionette Park Public Library District • AMS | XBR | |
| Bedford Park Public Library District • BPS | XBR | |
| Beecher Community Library District • BCS | XBR | |
| Bellwood Public Library • BWS | XBR | |
| Berkeley Public Library • BKS | XBR | |
| Berwyn Public Library • BYS | XBR | |
| Blue Island Public Library • BIS | XBR | |
| Bridgeview Public Library • BVS | XBR | |
| Broadview Public Library District • BRS | XBR | |
| Brookfield Public Library • BFS | XBR | |
| Brookfield Zoo -- Library • BZS | XBR | |
| Calumet City Public Library • CCS | XBR | |
| Calumet Park Public Library • CAS | XBR | |
| Chicago Heights Public Library • CHS | XBR | |
| Chicago Ridge Public Library • CRS | XBR | |
| Cicero Public Library • CIS | XBR | |
| Clarendon Hills Public Library • CNS | XBR | |
| Crestwood Public Library District -- Crestwood Public Library District • CWS | XBR | |
| Crete Public Library District • CTS | XBR | |
| Dolton Public Library District • DOS | XBR | |
| Downers Grove Public Library • DGS | XBR | |
| Eisenhower Public Library District • ESS | XBR | |
| Elmhurst Public Library • EHS | XBR | |
| Elmwood Park Public Library • EPS | XBR | |
| Evergreen Park Public Library • EVS | XBR | |
| Flossmoor Public Library • FMS | XBR | |
| Forest Park Public Library • FPS | XBR | |
| Frankfort Public Library District • FRS | XBR | |
| Glenwood-Lynwood Public Library District • GWS | XBR | |
| Grande Prairie Public Library District • GPS | XBR | |
| Harvey Public Library District • HAS | XBR | |
| Hillside Public Library • HSS | XBR | |
| Hinsdale Public Library • HDS | XBR | |
| Hodgkins Public Library District • HKS | XBR | |
| Homewood Public Library District • HWS | XBR | |
| Indian Prairie Public Library District • INS | XBR | |
| Justice Public Library District • JDS | XBR | |
| La Grange Public Library • LGS | XBR | |
| LaGrange Park Public Library District • LPS | XBR | |
| Lyons Public Library • LYS | XBR | |
| Markham Public Library • MKS | XBR | |
| Matteson Public Library • MTS | XBR | |
| Maywood Public Library District • MWS | XBR | |
| McCook Public Library District • MCS | XBR | |
| Melrose Park Public Library • MPS | XBR | |
| Midlothian Public Library • MDS | XBR | |
| Morton College Library • MLS | MRT | |
| Nancy L McConathy Public Library District • SVS | XBR | |
| North Riverside Public Library District • NRS | XBR | |
| Northlake Public Library District • NLS | XBR | |
| Oak Lawn Public Library • OLS | XBR | |
| Oak Park Public Library • OPS | XBR | |
| Oak Park Public Library -- Dole Branch Library • OES | XBR | |
| Oak Park Public Library -- Maze Branch Library • OZS | XBR | |
| Orland Park Public Library • ORS | XBR | |
| Palos Heights Public Library • PHS | XBR | |
| Palos Park Public Library • PPS | XBR | |
| Park Forest Public Library • PFS | XBR | |
| Prairie State College -- Library • PCS | XBR | |
| Prairie Trails Public Library District • PTS | XBR | |
| Richton Park Public Library District • RPS | XBR | |
| River Forest Public Library • RFS | XBR | |
| River Grove Public Library District • RGS | XBR | |
| Riverdale Public Library District • RDS | XBR | |
| Riverside Public Library • RSS | XBR | |
| Schiller Park Public Library • SPS | XBR | |
| South Holland Public Library • SHS | XBR | |
| South Suburban College -- Learning Resources Center • TTS | SSC | |
| Steger-South Chicago Heights Public Library District • STS | XBR | |
| Stickney-Forest View Public Library District • SFS | XBR | |
| Summit Public Library District -- Summit Public Library District • SAS | XBR | |
| The Morton Arboretum -- Sterling Morton Library • MAS | XBR | |
| Thomas Ford Memorial Library • TFS | XBR | |
| Thornton Public Library • THS | XBR | |
| Tinley Park Public Library • TPS | XBR | |
| University Park Public Library District • PSS | XBR | |
| Westchester Public Library • WCS | XBR | |
| Westmont Public Library • WMS | XBR | |
| William Leonard Public Library District • ROS | XBR | |
| Woodridge Public Library • WRS | XBR | |
| Worth Public Library District • WOS | XBR | |
