http://www.mountairymd.org/
About Mount Airy, Maryland (courtesy of Wikipedia):
Mount Airy is a town located in Carroll and Frederick counties in the U.S. state of Maryland. It is part of both the Washington Metropolitan Area andBaltimore Metropolitan Area. As of the 2010 census it had a population of 9,288.[5]
Outside of the town limits, the surrounding community is colloquially referred to as Mount Airy or the “Four-County Area” by locals. The “Four-County Area” derives its name from the fact that the community encompasses portions of Frederick, Carroll, Montgomery, and Howard counties.
For more information on buying or selling a house in Mount Airy, or anywhere in Maryland, contact a State 7 Realty Agent.