Data and Tools

Public Libraries

Investigate public library research data from annual surveys, original research projects, and national studies.

  • Annual Statistics. Dive into annual statistics from the Colorado Public Library Annual Report using our interactive tool, results tailored to trustees, and state totals and averages.
  • Mill Levy. Download an Excel document outlining current mill levies and associated revenues for library districts across Colorado (includes 2016-2020).
  • National Statistics. Want to see the national picture in public library statistics? Check out these individual library and aggregated state and national data sets from IMLS.
  • Other States. Access public library statistics for states other than Colorado through these resources. Most are available on the website of each state library.

School Libraries

Explore school library research data from LRS-conducted surveys and projects, other studies, and national research.

  • School Library Profiles. Quickly capture individual school library data and comparative statistics with these School Library Profiles based on the annual School Library Survey. (2013-2018)
  • Impact Studies. Fact: School libraries have a profound impact on students. Review extensive LRS research and other states’ studies on the topic with this exhaustive guide. (2000-2013)
  • Annual Statistics. View and download statistics from the annual Colorado School Library Survey (2006-2018).
  • National Statistics. Take a wider view with state and national school library statistics from the National Center for Education Statistics.
  • Other States. Examine school library statistics for states other than Colorado through these resources. Most are published on state library websites.

Academic Libraries

Examine academic library research data from federal agencies, professional organizations, and state research projects.

  • Historical Statistics. Get quick access to historical statistics on Colorado academic libraries (1994-2006)
  • National Statistics. Explore biennial academic library statistics with state data and national summaries from the National Center for Education Statistics.
  • Impact Study. In 2005, in association with the Colorado Academic Library Consortium, LRS completed an impact study about how academic libraries help students learn and faculty teach.


Access data and statistics about general library topics, use calculators and research tools, and view field-initiated studies conducted by librarians.

  • DART Reference Tracker. Tired of tracking reference stats by hand? Try DART, a web app developed & maintained by LRS and tailored to your library’s needs.
  • Wage Calculator. Convert an hourly wage to monthly or annual or vice versa. Fill in the rate and we’ll do the rest!
  • Random Date Calculator. Generate random dates for any calendar year using this calculator produced by Library Research Service.
  • Multiple Outlet Hours Calculator. Enter a library’s hours and calculate how long the library is open each week, year, and on evenings and weekends.