Maps

Offical Tourism Site of Washington D.C.
This official tourism site provides several great maps; click "Area Maps" on the left-hand side of the site.

Digital Atlas of Washington, D.C.
Professor William Bowen's atlas of demographic data. Includes population, income, race, and more.

Map of Washington, D.C.
A large regional map of the Washington D.C. and Baltimore area.

Geography and Data

District of Columbia
Great data and historical information from Infoplease.com.

District of Columbia Homepage
This official government site includes a plethora of information and resources.

Stately Knowledge: Washington, D.C.
Basic information from the Internet Public Library.