Adams County is located in west-central Illinois and is part of the Quincy, IL–MO Micropolitan Statistical Area. The county seat is Quincy.

Adams County is governed by a seven-member Board of Commissioners. The board is elected by the citizens of Adams County and is responsible for setting policy and overseeing the county's budget. The board is led by a chairman, who is elected by the board members.

The county is also served by a state's attorney, sheriff, coroner, and treasurer.

Adams County is home to the John Wood Community College, the Quincy University, and the Blessing Hospital. The county is also home to the Quincy Mall, the Quincy Museum, and the Quincy Art Center.

For the most up-to-date and in-depth information, please check the public records links below.