Receive a local area code
301
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Economic Overview
The 301 area code region is economically diverse, with significant sectors including government, biotechnology, healthcare, education, and high-tech industries. Major employers include the U.S. federal government (particularly agencies located in Montgomery County), the National Institutes of Health (NIH), Lockheed Martin, and several universities and hospitals. Retail, service industries, and agriculture also play important roles, especially in less urbanized counties.
Geographical Overview
Area code 301 covers the western and southern parts of Maryland, including parts of the Washington, D.C. metropolitan area. Key cities include Rockville, Gaithersburg, Frederick, Hagerstown, and Waldorf. It serves Montgomery, Prince George’s (western portion), Frederick, Washington, Allegany, Charles, and St. Mary’s counties, among others.
Location Info
The 301 area code covers western Maryland, extending from the suburbs of Washington, D.C. (such as Bethesda and Silver Spring) to the Appalachian panhandle in the west and south to the Potomac River. It excludes Baltimore and its immediate suburbs. The 301 area is overlaid by area code 240, and together they cover the same geographic territory.
Population Demographics
The population of the 301 area code is diverse, with significant representation from various racial and ethnic backgrounds, particularly in Montgomery and Prince George’s counties. The area includes both densely populated urban and suburban communities, as well as rural and small-town populations farther west and south. Education levels are high, especially in the Washington, D.C. suburbs.
Time Zone Info
Area code 301 is located entirely within the Eastern Time Zone (ET).
Other Area Code Details
Area code 301 was one of the original North American area codes established in 1947. It is notable for encompassing both bustling Washington, D.C. suburbs and historic, rural regions such as Antietam National Battlefield and the C&O Canal. The overlay with area code 240 has been in place since 1997 due to population growth and increased telecom demand.
