The offices of the National Historical Society are conveniently located in the historic Embassy Row district of our Nation's Capitol, two blocks west of the Dupont Circle station of the Washington DC Metro system. 

The physical address is:

1607 22nd Street NW
Washington, DC 20008

The mailing address is: 

500 North Washington St, Box 2488
Rockville, MD 20849

301-706-4179