Illinois is primarily known for its world-class city, Chicago, which is considered by many to be the cultural center of the United States. It's located on the banks of Lake Michigan. The city is one of the biggest cities in the country and home to the Willis Tower, originally known as the Sears Tower, which is the tallest building in the Western Hemisphere, standing at 110 stories tall. Illinois is also the starting point of Historic Route 66, which heads west, ultimately ending in Los Angeles. We've examined the top banks in Illinois and highlighted the important factors you ought to take into account when picking the best Illinois bank. Chase, US Bank, PNC, Bank of America, and Wells Fargo all have branches throughout the state, with the largest concentration in Chicago and Aurora, the state's largest cities. BMO Harris and Bank & Trust Company are the regional Illinois banks operating in the state, with numerous branches and ATMs.