Banks in Groton, South Dakota, the US. Banks locations in Groton, South Dakota. Find the nearest banks locations, near you. All types of business services Accounting ATM Bank Finance Insurance Lawyer School All banks in Groton Open now Until 04:30 pm First State Bank ATM Finance Bank +1 605-397-2711 7 U.S. 12, Groton, South Dakota 57445 Write a review Phone Hours Website Directions