page_title: Mount Airy, Maryland
section_title: Transportation
hierarchical_section_title: Mount Airy, Maryland / Geography / Transportation
caption_attribution_description: English: View west along Interstate 70 and U.S. Route 40 (Baltimore National Pike) at Exit 68 (Maryland State Route 27, Damascus, Mount Airy) in Mount Airy, Carroll County, Maryland
context_page_description: Mount Airy is a town in Carroll and Frederick counties in the U.S. state of Maryland. It is part of both the Washington Metropolitan Area and Baltimore Metropolitan Area. As of the 2010 census the population was 9,288.
  Outside the town limits, the surrounding countryside 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 "Mount Airy" mailing area encompasses portions of Frederick, Carroll, Montgomery, and Howard counties.
context_section_description: The primary means of travel to and from Mount Airy are by road. The most prominent highway serving the town is Interstate 70 and U.S. Route 40, which forms the southern border of Mount Airy and leads east 32 miles (51 km) to Baltimore and west 14 miles (23 km) to Frederick. Maryland Route 27 (Ridge Road) runs through the east side of the town, leading northeast 16 miles (26 km) to Westminster, the Carroll County seat, and southwest 14 miles (23 km) to Interstate 270 in Germantown. Maryland Route 808 follows the original route of Maryland Route 27 through downtown Mount Airy.
caption: The exit for Mount Airy along I-70/US 40
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