Schools in Avon, South Dakota, the US. Schools locations in Avon, South Dakota. Find the nearest schools locations, near you. All types of business services ATM Bank Finance Insurance Lawyer School All schools in Avon Avon School District 4-1 School +1 605-286-3291 210 North Pine Street, Avon, South Dakota 57315 Write a review Phone Website Directions Dewald School School Avon, Avon, South Dakota 57315 Write a review Phone Directions