Mildred L. Day School schools the children of Arundel from the grades kindergarten to fifth grade. After June 30, 2016, students entering grades 6–8, who reside in Arundel will attend Middle School of the Kennebunks. However, by way of a transition Resolution, those students already enrolled in Thornton Academy Middle School and those 5th graders entering grade 6 in the fall of 2016 may notify the Superintendent of Schools by April 15, 2016 requesting they continue their middle school education at Thornton Academy Middle School. Students who live in Arundel and are entering grade 6 in the fall of 2017, and thereafter, will attend Middle School of the Kennebunks, with those students requiring following exceptions: