Summary:
ZIP code 98391 includes five elementary schools serving about 2,689 students across the Sumner-Bonney Lake School District and Dieringer School District, both of which rank among Washington’s highest-performing districts. Four schools generally serve pre-kindergarten through fifth grade, while Lake Tapps Elementary serves grades 1–3, making some comparisons less direct. Overall, the area offers above-state academic results, though performance varies meaningfully from school to school.
Tehaleh Heights Elementary School is the clear academic leader, with 2025–2026 proficiency rates of 84.65% in English Language Arts, 84.51% in math, and 78.48% in science. It ranked 39th among Washington elementary schools and has improved steadily. Victor Falls Elementary is the strongest improvement story: its ranking rose from 276th to 97th over three years, while its latest results reached 75.00% in ELA, 74.63% in math, and 67.82% in science. Donald Eismann Elementary provides consistent above-state performance, particularly in math and science, with results of 70.99%, 67.96%, and 66.96%, respectively.
Dieringer Heights Elementary stands out for science, where 71.62% of students were proficient, and also showed notable math improvement. Lake Tapps Elementary had the lowest ELA result at 59.40% but remained above the state average and was relatively stronger in math at 63.16%. It also had the lowest student-teacher ratio and highest spending per student, demonstrating that these measures do not by themselves predict academic results. For families comparing schools, Tehaleh Heights is strongest for current achievement, Victor Falls for recent momentum, Donald Eismann for steady performance, Dieringer Heights for science, and Lake Tapps for its narrower grade span and math profile.
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