History of Montgomery County, Maryland in Timeline

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Montgomery County, Maryland

Montgomery County, Maryland, is the state's most populous county, with over 1 million residents as of 2020. Its population increased by 9.3% since 2010. Rockville is the county seat, while Germantown is the most populous area. Montgomery County is part of the Washington metropolitan area and the Washington–Baltimore combined statistical area, bordering Washington, D.C. Major population centers include Silver Spring, Bethesda, Germantown, Rockville, and Gaithersburg.