Best High Schools in Zip Code 99336

ZIP code 99336 has four high-school-level schools serving grades 6–12, all associated with the Kennewick School District. The area includes two large traditional high schools—Kamiakin High School and Kennewick High School—as well as the smaller Endeavor High School and the specialized Benton/Franklin Juvenile Justice Center. Together, the schools report 4,004 students, with nearly all enrollment concentrated at Kamiakin and Kennewick.

Among the two large, more directly comparable schools, Kamiakin is the strongest overall performer. It has the highest ranking, a 90.8% graduation rate, the lowest reported dropout rate at 3.8%, and the strongest ELA proficiency at 67.94%. Kennewick also has solid completion outcomes, including an 86.8% graduation rate and a 4.8% dropout rate, and its statewide ranking improved substantially over the past three reported years. Its ELA and science results are respectable, but its current math proficiency is only 24.75%, well below both the district and state averages. Math is also a weakness at Kamiakin, where proficiency is 34.38%; neither large school reaches the statewide math average. Parents comparing the traditional high schools may therefore see Kamiakin as the stronger overall academic choice, while Kennewick’s improving ranking is an encouraging sign.

Endeavor and the Juvenile Justice Center serve smaller, more specialized student populations, so their results should not be compared directly with the comprehensive high schools. Endeavor reports a much lower graduation rate and higher dropout rate, although its small enrollment can make percentages fluctuate considerably; its unusually strong 2024–2025 science result should also be viewed cautiously. Current assessment results for Endeavor and the Juvenile Justice Center are partly or entirely suppressed, meaning the information is unavailable rather than zero. The Juvenile Justice Center has the smallest enrollment, highest per-student spending, and lowest student-teacher ratio, reflecting its specialized setting. Overall, families seeking a traditional high school will find Kamiakin the leading option by the available measures, while Kennewick offers improving performance but needs particular attention to mathematics.