Schools in Ashton, South Dakota, the US. Schools locations in Ashton, South Dakota. Find the nearest schools locations, near you. All types of business services School All schools in Ashton Clifton School School Ashton, Ashton, South Dakota 57424 Write a review Phone Directions Jenner School School Ashton, Ashton, South Dakota 57424 Write a review Phone Directions Pioneer School School Ashton, Ashton, South Dakota 57424 Write a review Phone Directions Stover School School Ashton, Ashton, South Dakota 57424 Write a review Phone Directions