Its purpose is to collect, preserve and make available archives relating to the history of the county and its people dating from the early 12th to the 21st century.
It is located in the town of Warwick, and is owned and run by Warwickshire County Council.
Forty years after its founding it moved to its present site, which is a purpose-built building next to Priory Park.
These include a library of secondary sources relating to Warwickshire, newspapers, maps, photographs, microfilm copies of census returns for Warwickshire and microfilm copies of the GRO index (an index of the General Register Office's birth, marriage and death certificates).
Other archives that hold records relating to the historic county of Warwickshire include: