DC-area Place Names
I made this map of Census-designated places and municipalities in the DC area for a Greater Greater Washington article in June 2017.
Incorporated places (including both towns and independent cities in Virginia and cities, towns, and the City of Baltimore in Maryland) are colored orange and Census-designated places are colored yellow. My data source was US Census shapefiles for places used in the 2010 Census. The map was made in QGIS 2.