Charlotte-Mecklenburg Schools (abbreviated CMS) is a local education agency headquartered in Charlotte, North Carolina and is the public school system for Mecklenburg County. With over 147,000 students enrolled, it is the second-largest school district in North Carolina and the eighteenth-largest in the nation. The system is best known nationally for its role as the respondent in the landmark 1971 Supreme Court decision Swann v. Charlotte-Mecklenburg Schools.