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
Government of the State of Washington leadership position in the Senate. The other legislative leaders, such as the majority and minority leaders are elected by their respective party caucuses. Its session laws are published in the "Laws of Washington", which in turn have been codified in the "Revised Code of Washington" (RCW). The Washington Supreme Court is the highest court in the state. It has original jurisdiction of petitions against state officers, and can review decisions of lower courts if the money or value of property involved exceeds $200. Direct Supreme Court review of a trial court decision is permitted if the action involves a state