American State Bank Address: 141 E Main St, Oldham, SD 57051 Phone: (605) 482-8293 Banks, State Commercial Banks Other Businesses: Oldham Saloon at 201 E Main St, Oldham, SD 57051 Dragons Den at 120 E Main St, Oldham, SD 57051 Mountain Goat Roofing at 44556 218th St, Oldham, SD 57051