Illinois Regional Archives Depository (IRAD) System Illinois State Archives

  • The Illinois Regional Archives Depositories (IRAD) are open to in-person visitors by appointment only. Face masks are required regardless of vaccination status. Contact the Illinois Regional Archives Depository that you plan to visit to schedule an appointment.

Illinois Regional Archives Depository (IRAD) System

The State Archives administers a system of Illinois Regional Archives Depositories (IRAD) to manage the archival records of local governments. Local governments which have transferred records to the regional depositories include counties, townships, municipalities and school districts. Located on seven state university campuses, regional depositories house and service those records of local governments which have been appraised as having long-term values and have been transferred to the Archives. Records include:

A special part of IRAD's holdings are from the City of Chicago which includes nearly 35,650 previously unknown documents that predate the Great Chicago Fire of 1871. In addition to these City Council proceedings files of 1833 through 1942, holdings include plats, atlases, and Sanborn Maps. Other Chicago records include election registers for 1888, 1890 and 1892 and ordinance records spanning 1837 to 1916.

For more information, please contact:
Illinois Regional Archives Depository
Illinois State Archives
Springfield, IL 62756