Welcome to the website of the Illinois State Association of Counties (ISACo). Almost eighty percent of Illinois residents reside within ISACo member counties. We invite you to look around the website and learn more about ISACo.

ISACo serves as a forum to improve county government by identifying needs and solutions. We provide a united voice for counties while recognizing that different regions of the state sometimes have different needs and perspectives. ISACo works to respect and balance these differences while pursuing state and federal policies that benefit counties generally.

Working in conjunction with our strategic partners, ISACo pursues and achieves outcomes that strengthen counties and enhance the lives of county residents.