Frederick County, Maryland Frederick County, Maryland Frederick County is located in the northern part of the U.S. state of Maryland. As of the 2010 U.S. Census, the population was 240,336. The county seat is Frederick. Frederick County is included in the Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area. Like other outlying sections of the Washington metropolitan area, Frederick County has experienced a rapid population increase in recent years. It borders the southern border of Pennsylvania and the northeastern border of Virginia. The county is home to Catoctin Mountain Park (encompassing the presidential retreat Camp David) and to the U.S. Army's Fort Detrick. It has also
Association of Independent Maryland and DC Schools Association of Independent Maryland and DC Schools The Association of Independent Maryland and DC Schools is an American nonprofit education organization representing 120 independent schools in the US state of Maryland and the District of Columbia. Based in Glen Burnie, Maryland, it was founded in 1967 as the Association of Independent Maryland Schools (AIMS) and is a member of the National Association of Independent Schools (NAIS) and the NAIS Commission on Accreditation. The Association provides accreditation services for its member schools as well as support for professional and institutional development. It also organizes regional Admissions Fairs, and it acts as