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Hours & Locations

You're never far from a branch and all the services the Cambridge Public Library has to offer. All locations are accessible by public transportation. Click here for transit options near your branch.


  • Main Library

    449 Broadway 02138 | 617-349-4040 | Monday 9 a.m.-9 p.m.| Tuesday, Wednesday, Thursday 9 a.m.-9 p.m. | Friday, Saturday 9 a.m.-5 p.m. | Sunday (Sept-June) 1 p.m.-5 p.m. | Book drop open 24/7

  • The Hive

    Sunday closed | Monday 1 p.m. -5 p.m. |Tuesday & Wednesday 1-9 p.m. | Thursday 9 a.m.-9 p.m. | Friday & Saturday 9 a.m.-5 p.m. | call 857-235-9819 for assistance

  • Children's Room

    Monday, Tuesday, Wednesday, Thursday 9 a.m.-7 p.m. | Friday, Saturday 9 a.m.-5 p.m. | Sunday (Sept-June) 1 p.m.-5 p.m. | call 617-349-4038 for assistance

  • Teen Room

    Monday through Thursday 12 p.m.-7 p.m. | Friday 12 p.m.-5 p.m. | Saturday 1 p.m.-5 p.m. | Sunday (Sept-June) 1 p.m.-5 pm. | call 617-349-4027 for assistance

  • Cambridge Room

    By appointment only | Please email archives@cambridgema.gov

  • Boudreau Branch

    245 Concord Ave. 02138 | 617-349-4017 | Monday 10 a.m.-8 p.m. | Tuesday 10 a.m.-8 p.m. | Wednesday 10 a.m.-8 p.m. | Thursday 10 a.m.-6 p.m. | Friday 10 a.m.-6 p.m. | Book drop open 24/7

  • Central Square Branch

    45 Pearl St. | 617-349-4010 | Monday 10 a.m.-6 p.m. | Tuesday 10 a.m.-9 p.m. | Wednesday 10 a.m.-9 p.m. | Thursday 10 a.m.-9 p.m. | Friday 10 a.m.-6 p.m. | Saturday 10 a.m.-2 p.m. | Children's Room closes at 7 p.m. on Tuesdays, Wednesdays, and Thursdays | Book drop open 24/7

  • Collins Branch

    64 Aberdeen Ave. 02138 | 617-349-4021 | Monday 10 a.m.-6 p.m. | Tuesday, Wednesday, Thursday 10 a.m.-8 p.m. | Friday 10 a.m.-6 p.m. | Book drop open 24/7

  • O'Connell Branch

    48 Sixth St. 02141 | 617-349-4019 | Monday 10a.m.-6p.m. | Tuesday 10a.m.-8 p.m. | Wednesday 10a.m.-8p.m. | Thursday 10a.m.-8p.m. | Friday 10a.m.-6p.m.| Book drop open 24/7

  • O'Neill Branch

    70 Rindge Ave. 02140 | 617-349-4023 | Monday, Tuesday & Wednesday 10 a.m.-8 p.m. | Thursday, Friday 10 a.m.-6 p.m. | Saturday 1-5 p.m. | Book drop open 24/7

  • Valente Branch

    826 Cambridge St. 02141 | 617-349-4015 | Monday 10 a.m.-8 p.m. | Tuesday 10 a.m.-8 p.m. | Wednesday 10 a.m.-8 p.m. | Thursday 10 a.m.-6 p.m. | Friday 10a.m.-6p.m. | Saturday 1-5p.m. | Sunday (July & August) 1-5 p.m. | Book drop open 24/7

  • Holidays

    See when the Main and Branch libraries are closed.


Map of Locations