ACRLMetrics is an on-line  subscription service providing access to:

•  ACRL Academic Library Trends & Statistics Survey data (1998-present).
• a select subset of IPEDS data specific to academic libraries.
• the former NCES academic library statistics data.

If you do not have a current subscription, subscribe now, or learn more. 

The 2019 ACRL Academic Library Trends & Statistics Survey will open in September, 2019.
For more information see the survey website.