Plan Your Visit

Library Hours:
  • We are pleased to welcome researchers by prior appointment Monday through Thursday.
  • Appointments may be requested by emailing
  • The library and exhibit are closed on the following federal holidays: New Year's Day; Martin Luther King, Jr. Day; President's Day; Memorial Day; Independence Day; Labor Day; Columbus Day; Veterans' Day; Thanksgiving Day; and Christmas Day.
  • The Library is located on the second floor of the historic Carnegie Library at 801 K St. NW.
  • For directions, please see the Directions page.

Good to Know:

  • Please consult our online catalog to determine material you would like to research; if provided with call numbers, we can pull the material prior to your arrival. Please email with your request.
  • On their first visit, researchers must fill out a Patron Registration Form and show photo identification.
  • Bags, backpacks, briefcases, coats, umbrellas, purses, computer carrying cases and other personal items are not allowed in the reading room. Lockers for belongings are available in the coat room adjacent to the library. Small hand-held wallets or change purses are allowed.
  • Laptops are allowed in the reading room. The reading room has wi-fi.
  • Cameras are allowed if the researcher signs the "Personal Camera Use Form" concerning copyright restrictions and pays a $5 daily fee.
  • Smoking, eating, and drinking are prohibited in the library.
  • Library computers may ONLY be used to search the Library Catalog and other sites related to HSW collections. Non-collection related computer use or internet browsing is prohibited.
    Please review all of our rules and regulations before you arrive.

    Admission is free.

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The Historical Society of Washington, D.C. • 801 K Street, NW at Mount Vernon Square • Washington, DC 20001 • 202-249-3955 •