Government archives in Illinois are administered by the state archives and records management division, which is typically housed within the Secretary of State's office or a dedicated cultural affairs agency. The state archives preserves official government records while also maintaining collections of historical significance to Illinois residents.
Archives locations are available in 21 cities across Illinois. They are spread across 16 counties.
Cities with the highest concentration include Springfield, Chicago, Elk Grove, which tend to have more archives facilities due to their roles as county seats, state capitals, or historic centers of government activity.
Residents of Illinois conducting genealogical or historical research should check whether their county or city maintains a separate archives in addition to the state repository, as many local records are held at the municipal or county level.
Researchers in Illinois can often access digitized state archives records through the state library's online portal without visiting in person. For records not yet digitized, contact the archives office in advance to schedule a research appointment and confirm that the specific collection is available for public review.
Browse Archives by county across Illinois to find the nearest location.