Montgomery County is located in the central part of the U.S. state of Illinois. The county seat is Hillsboro.

Montgomery County is part of the St. Louis, MO-IL Metropolitan Statistical Area.

The county is governed by a board of commissioners, which is composed of seven members elected from single-member districts. The county is divided into seven districts, each of which is represented by one commissioner. The board is responsible for setting county policy, levying taxes, and approving the county budget.

The county is served by the Montgomery County Sheriff's Office, which is responsible for law enforcement and corrections. The county also has a state's attorney, and a coroner.

The county is home to several state parks, including the Montgomery County State Fish and Wildlife Area, the Montgomery County State Recreation Area, and the Montgomery County State Forest. The county also has several local parks, including the Hillsboro City Park, the Raymond City Park, and the Coffeen City Park.

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