What areas of Illinois does Health Alliance cover? Ernie Harris October 29, 2018 00:02 Updated Follow The above map shows where health coverage is available. Health Alliance is a great option for people in central and southern illinois. Get Quotes & Enroll Related articles What Health Insurance Plans Does University of Chicago Accept in 2021? What Hospitals are Covered Under 2017 Aetna Individual Plans Cover in DuPage County? Which Hospitals Does Ambetter Cover the Chicagoland Area? Ambetter Illinois 2020 Guide What plans will be available in the Peoria area in 2021? Comments 0 comments Please sign in to leave a comment.