There are 19 branch libraries in the Prince George's County Memorial Library System:
Accokeek,
Baden,
Beltsville,
Bladensburg,
Bowie,
Fairmount Heights,
Glenarden,
Greenbelt,
Hillcrest Heights,
Hyattsville,
Largo-
Kettering,
Laurel,
Mount Rainier,
New Carrollton,
Oxon Hill,
South Bowie, Spauldings,
Surratts-Clinton and
Upper Marlboro. The South Bowie branch, the newest library in the county, opened in October 2012. PGCMLS also provides library service at the County Correctional Center. Previously the library headquarters were in Hyattsville, adjacent to the Hyattsville Library. == History and organization ==