Contact Us

How can we help?

Call Center Hours
Monday – Thursday: 9 a.m. – 7 p.m.
Friday – Saturday: 10 a.m. – 5 p.m.
Sunday: noon – 5 p.m.

Call: 303-441-3100
Text: 303-351-1955

  • Misplaced or lost your library card? Email us a photo of yourself holding your photo ID to [email protected] and we will send you your library card number.
  • Check our FAQ or send us a question through our Ask-A-Librarian service. Get a reply within 24 hours.

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Mailing Addresses

Library Administration

1001 Arapahoe Avenue
Boulder, Colorado 80302
303-441-3100
Request for Photography and Filming

Boulder Library Foundation

P.O. Drawer H
Boulder, CO 80306
Website