This study analyzes the distribution of the dropout students to consider the potential for improvement of low level school. The dropout rate was calculated by asking the distance to the distance range Takayanagi Shonan High School student residence. the difference between the average distance of the dropout students and average distance of the graduates students was,determined to be significant by t test. The region of less than 2km distance to the residence was lowest dropout rate. Such schools may want to go to school many students from the region, it was shown that one important strategy for improving schools.