Banks in Yankton, Nebraska, the US. Banks locations in Yankton, Nebraska. Find the nearest banks locations, near you. All types of business services ATM Bank Finance All banks in Yankton Closed now Farmers & Merchants State Bank ATM Finance Bank +1 402-667-2006 89823 U.S. 81, Yankton, Nebraska 57078 Write a review Phone Hours Website Directions Closed now Farmers & Merchants State Bank ATM Finance Bank +1 402-667-2006 89823 U.S. 81, Yankton, Nebraska 57078 Write a review Phone Hours Website Directions