Academic Libraries
- Albertus Magnus College
- Briarwood College
- Central Connecticut State University
- Connecticut College
- Connecticut State University System
- Eastern Connecticut State University
- Fairfield University
- Hartford Graduate Center
- Hartford Seminary
- Holy Apostles College and Seminary
- Lyme Academy College of Fine Arts
- Mitchell College
- Rensselaer at Hartford
- Sacred Heart University
- Saint Joseph College
- Southern Connecticut State University
- St. Thomas Seminary
- Trinity College
- University of Bridgeport
- University of Connecticut
- University of Hartford
- University of New Haven
- US Coast Guard Academy
- Wesleyan University
- Western Connecticut State University
- Yale University
Government and State Libraries
Government and Law Libraries
Public Libraies
- Acton Library
- Aldrich Free Public Library
- Ansonia Public Library
- Avon Free Public Library
- Babcock Library
- Bakerville Public Library
- Beacon Falls Public Library
- Beardsley and Memorial Library
- Berlin-Peck Library
- Bethel Public Library
- Bethlehem Public Library
- Bill Memorial Library
- Booth & Dimock Memorial Library
- Bridgeport Public Library
- Bristol Public Library
- Brookfield Library
- Burlington Public Library
- Canton Public Library
- Case Memorial Library
- Cheshire Public Library
- Cora J. Belden Library
- Cragin Memorial Library
- Cromwell Belden Public Library
- Danbury Public Library
- Darien Library
- Deep River Public Library
- Derby Neck Library
- Derby Public Library
- Douglas Library
- East Granby Public Library
- East Haddam Free Public Library
- East Hampton Public Library
- East Hartford Public Library System
- East Lyme Public Library
- East Norwalk Library
- Easton Public Library
- Enfield Public Library
- Essex Library Association
- Fairfield Public Library
- Farmington Library
- Ferguson Library
- Goshen Public Library
- Granby Public Library
- Greenwich Library
- Groton Public Library
- Guilford Free Library
- Hagaman Memorial Library
- Hamden Library System
- Hartford Public Library
- Harwinton Public Library
- Henry Carter Hull Library
- Hotchkiss Memorial Library
- Ivoryton Library Association
- James Blackstone Memorial Library
- Jonathan Trumbull Library
- Kent Memorial Library
- Kent Memorial Library
- Killingly Public Library
- Killingworth Library
- Ledyard Libraries
- Levi E. Coe Library
- Library Association of Warehouse Point
- Licia & Mason Beekley Community Library
- Lucy Robbins Welles Library
- Lyme Public Library
- Manchester Public Library
- Mark Twain Library
- Meriden Public Library
- Milford Public Library
- Mystic & Noank Library
- New Britain Public Library
- New Canaan Library
- New Fairfield Public Library
- New Haven Free Public Library
- New London Public Library
- Norfolk Library
- North Haven Memorial Library
- Nowalk Library
- Old Lyme Phoebe Griffin Noyes Library
- Oliver Wolcott Library
- Otis Library
- Pequot Library
- Perrot Memorial Library
- Plainville Public Library
- Plumb Memorial Library
- Portland Library
- Preston Public Library
- Prospect Connecticut Public Library
- Prosser Public Library
- Rathbun Free Library
- Richmond Memorial Library
- Ridgefield Public Library
- Rocky Hill Public Library
- Rowayton Library Information Center
- Russell Library
- Salem Free Public Library
- Saxton B. Little Free Library
- Scoville Memorial Library
- Scranton Memorial Library
- Seymour Public Library
- Silas Bronson Library
- Simsbury Public Library
- Somers Public Library
- South Windsor Public Library
- Southbury Public Library
- Southington Library and Museum
- Stafford Library
- Stonington Free Library
- Stratford Library Association
- Terryville Public Library
- Thompson Public Library
- Tolland Public Library
- Torrington Library
- Trumbull Library System
- United Valley Libraries
- Wallingford Public Library
- Waterford Public Library
- Watertown Library Association
- Welles-Turner Memorial Library
- West Hartford Public Library
- West Haven Public Library
- Westport Public Library
- Wheeler Library
- Willimantic Public Library
- Willoughby Wallace Memorial Library
- Wilton Library Association
- Windsor Locks Public Library
- Windsor Public Library
- Woodbridge Town Library
Special Libraries
- Connecticut Historical Society
- Fairfield Historical Society
- Godfrey Memorial Library
- Goodspeed - Scherer Library of Musical Theatre
- Hamden Historical Society
- Harriet Beecher Stowe Center
- Mashantucket Pequot Museum and Research Center
- Mattatuck Museum
- Mystic Seaport Museum
- Wadsworth Atheneum - Auerbach Art Library
