Middle Schools in Sumner-Bonney Lake School District

Sumner-Bonney Lake School District has three public middle schools—Mountain View Middle School, Lakeridge Middle School, and Sumner Middle School—serving grades 6–8 and approximately 2,374 students in the Sumner-Bonney Lake area. Overall, the schools are strong statewide performers, with every school ranking in roughly the top 14% of Washington middle schools and the district ranked 13th out of 238 districts.

Lakeridge Middle School is the strongest overall choice based on the most recent results. It ranks 52nd of 514 schools and leads the group in all-grade English language arts and math, with proficiency rates of 72.40% and 58.29%. It is particularly strong in 8th-grade ELA, at 82.08%, and has improved substantially in statewide rankings over the past three years. Mountain View Middle School is the clear science leader, with 68.47% proficiency and a remarkable 13.39-point increase from the prior year. It is the largest school, serving 937 students, and also ranks highly statewide. Sumner Middle School ranks third among the schools but remains a strong performer, with notable strengths in 6th-grade math and 7th-grade ELA.

For families comparing schools, math is the main area needing continued attention across the Sumner-Bonney Lake School District. Math proficiency is lower than ELA at every school, with particular challenges in 8th grade at Mountain View Middle School and 7th grade at Sumner Middle School. Sumner Middle School has the smallest student-teacher ratio, while Lakeridge Middle School combines the best overall academic profile with the lowest reported per-student spending. All three schools outperform state averages in ELA, math, and science, making the area’s middle schools generally strong options.