What areas of Illinois does Health Alliance cover? Cody Michael October 31, 2017 01:26 Updated Follow Get Quotes & Enroll in 2018 Coverage Contact Us 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's the Difference Between an HMO and a PPO? What Health Insurance Plans Do NorthShore Hospitals Accept? (2018) What Health Insurance Plans are available in Illinois? - 2018 What is the Cheapest Illinois HSA Compatible Plan Available? (2018) What Is COBRA? Comments 0 comments Please sign in to leave a comment.