Montgomery County, Maryland, USA

Montgomery County is located in central Maryland immediately north and northwest of Washington, D.C., forming one of the most populous and economically significant parts of the Washington metropolitan area. It is bordered by Frederick County to the northwest, Howard County to the northeast, Prince George’s County to the southeast, Washington, D.C., to the south and Virginia across the Potomac River to the southwest. Rockville is the county seat, while Bethesda, Silver Spring, Gaithersburg and Germantown are among its largest population and employment centers. The county extends from densely developed inner suburbs near the District of Columbia through the Interstate 270 technology corridor to farmland and small communities protected within the county’s Agricultural Reserve. Its landscape is shaped by the Potomac River, Rock Creek, Seneca Creek and numerous smaller waterways, while Interstate 270, the Capital Beltway and Metrorail connect it to the broader region. Montgomery County covers 493.11 square miles of land and had 1,062,061 residents at the 2020 census.