Banks in Mercer, Wisconsin, the US. Banks locations in Mercer, Wisconsin. Find the nearest banks locations, near you. All types of business services Accounting ATM Bank Finance Insurance Lawyer Real estate School Travel All banks in Mercer ATM (Associated Bank) ATM Finance Bank +1 800-627-3999 5260 U.S. 51, Mercer, Wisconsin 54547 Write a review Phone Website Directions