St. Louis Mercantile Library

The Mercantile Library is closed on weekends from August 3 - 24. More Hours

Elevator Closure: Due to the University Libraries ongoing renovation, elevators in the library are currently restricted to those with ADA needs. If you need assistance to get to an elevator, please ask for help at the Library Service Desk in the main lobby on Level 3 (entrance level). All other users are asked to use the library's stairwells to navigate the building. Thank you for your continued patience as we work to make the library better for you!
University Libraries Renovation: Please use the open study areas on Levels 2 or 3 for group and individual study. Level 4 will remain the quiet floor.
Closed areas: Level 1, Library computer lab, Level 5 (including study rooms). We appreciate your patience during construction. For questions and updates, please see our renovation website.

About the Library:

Established in 1846 by civic leaders and philanthropists, the Mercantile exists today as a vibrant community and cultural asset. It is the oldest library west of the Mississippi and the grandparent of St. Louis cultural institutions.

The task of the Mercantile Library as a research library is to make its collections, which have come to concentrate on Western Expansion and the history, development, and growth of the St. Louis region and of the American rail and river transportation experiences, available to the widest number of local and national users.

View the latest edition of the St. Louis Mercantile Library Newsletter!

Learn about the UMSL Libraries Renovation !

Library Tours:

Tour availability is limited at this time due to construction. Please contact us in advance to determine availability by calling 314-516-7248 or email mercantilelibrary@umsl.edu.