Dupage County is located in the northeastern part of the state of Illinois, just west of Chicago. It is known for its suburban communities, parks, and recreational areas. The county was established in 1839 and has grown to become one of the most populous counties in Illinois, with a diverse population and a strong economy. The county seat is Wheaton, which is home to several historical sites and cultural institutions. Dupage County offers a variety of services, including education, healthcare, and transportation, making it a desirable place for families and businesses. The area is also known for its excellent school districts and numerous shopping and dining options.