Illinois Heartland Library System is a multi-type regional library system. Our members include public, school, academic, and special libraries. IHLS provides delivery, talking book, and LLSAP (online catalog) support to our member libraries.

Search the IHLS member directory

IHLS covers 28,368 square miles and serves a population of 2,160,469. As of January 2025, there were 520 member libraries:

• 28 Academic Libraries
• 227 Public Libraries
• 239 School Libraries
• 26 Special Libraries

Of the 520 IHLS member libraries, 339 at 467 locations participate in the IHLS automation consortium known as SHARE.

For information on becoming a member library, see our Membership Criteria.