Piatt County is located in east-central Illinois and is part of the Champaign-Urbana metropolitan area. The county seat is Monticello. The county was formed in 1841.

The government of Piatt County, Illinois is composed of a Board of Commissioners, a County Clerk, a Sheriff, a State's Attorney, and other elected officials.

The county is governed by a seven-member Board of Commissioners, elected from seven districts. The board is responsible for setting policy and overseeing the county's budget.

The county clerk is responsible for maintaining records, issuing licenses, and conducting elections.

The sheriff is responsible for law enforcement and maintaining the county jail.

The state's attorney is responsible for prosecuting criminal cases.

Other elected officials include the coroner, treasurer, and assessor.

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