Frederick County, Maryland

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Frederick County is located in Maryland, United States. As of the 2020 U.S. census, the population was 271,717. The county seat is Frederick.

Downtown Frederick with the Blue Ridge Mountains in the distance in June 2014

I-70 and US 40 in Frederick County

Brunswick

Burkittsville

Frederick, Maryland

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Frederick is a city in, and the county seat of, Frederick County, Maryland, United States. Frederick's population was 78,171 people as of the 2020 census, making it the second-largest incorporated city in Maryland behind Baltimore. It is a part of the Washington metropolitan area and the greater Washington–Baltimore combined statistical area.

Downtown Frederick's City Hall in 2022

Catoctin Mountain, located north of Frederick

Evangelical Lutheran church in Frederick, built in 1752

Confederate troops marching south on North Market Street in Frederick during the American Civil War