McLean County is a U.S. county in the east central region of Illinois, and is the largest county by land area in the state. According to the 2020 census, it had a population of 170,954. Its county sea

Livingston County is a county located in the U.S. state of Illinois. According to the 2020 census, it has a population of 35,815. Its county seat is Pontiac. Livingston County comprises the Pontiac, I