Oakland Mills High School was established in 1973 as one of the first high schools to serve the planned community of Columbia, Maryland, established by James Rouse and his company, The Rouse Company in 1967 in Howard County, midway between Baltimore and Washington, D.C. It is part of the Howard County Public School System (HCPSS). The building had its first renovation in 1991, and another in 1998. A new addition was put onto OMHS in 2004, the "new wing," raising its total capacity to 1,400 students. Recently, both Oakland Mills High School and Oakland Mills Middle School were affected by a mold issue which required renovations to both schools. The mold issue still has not been solved and mold was discovered in the media center in September 2023. Source: Wikipedia (en)