Schools in Castlewood, South Dakota, the US. Schools locations in Castlewood, South Dakota. Find the nearest schools locations, near you. All types of business services ATM Finance School All schools in Castlewood Claremont Colony - 04 School +1 605-793-2497 46271 184th Street, Castlewood, South Dakota 57223 Write a review Phone Directions Oakwood School School Castlewood, Castlewood, South Dakota 57223 Write a review Phone Directions