The Japanese Language Partial Immersion Program helps student become functionally proficient in speaking, reading and writing both English and Japanese. Sand Lake Elementary began the Japanese Immersion Program in the 1989-90 school year. The school has about 330 students participating in the program, kindergarten through sixth grades. 

The immersion program continues through Mears Middle School and Dimond High School with over 500 in the entire K-12 program. The first class to complete this program graduated from Dimond in May 2001. Students who continue with the program in middle and high school earn an immersion program completion cord to wear at high school graduation.