Aledo, Illinois, is a small city located in Mercer County in the western part of the state. It serves as the county seat and has a population of around 3,500 residents. The city is known for its friendly community atmosphere and offers various local amenities, including parks, schools, and shops. The area surrounding Aledo is primarily agricultural, with many farms contributing to the local economy. Aledo is also home to the annual Mercer County Fair, which showcases local agriculture, crafts, and entertainment, drawing visitors from nearby towns and cities.