Banks in Shannon, Illinois, the US. Banks locations in Shannon, Illinois. Find the nearest banks locations, near you. All types of business services ATM Bank Finance Insurance Real estate All banks in Shannon First State Bank ATM Finance Bank +1 815-864-2125 24494 Payne Road, Shannon, Illinois 61078 Write a review Phone Website Directions First State Bank Shannon Finance Bank +1 815-864-2111 1 South Linn Street, Shannon, Illinois 61078 Write a review Phone Website Directions Shannon Bancorp Inc ATM Finance Bank +1 815-864-2111 1 South Linn Street, Shannon, Illinois 61078 Write a review Phone Website Directions