Summary:
Zip code 98027 has six public schools serving students from pre-kindergarten through grade 12, with 5,273 students enrolled across the Issaquah School District, one of Washington’s highest-ranked districts. The area offers two elementary schools, two middle schools, and two high schools, and all six schools perform above statewide proficiency levels in their reported subjects.
Among the schools, Issaquah High School is the highest-ranked overall, placing 17th among Washington high schools and reporting 84.92% ELA and 72.38% math proficiency. It also has a strong 94.9% graduation rate. Cougar Mountain Middle School is the leading middle school, ranking 20th statewide and outperforming Issaquah Middle School in ELA, math, and science. Cougar Mountain has also shown the strongest middle-school ranking improvement. At the elementary level, Clark Elementary ranks ahead of Issaquah Valley Elementary and has particularly strong fourth-grade results.
Parents should note that math is generally more challenging than ELA across the area, although every school remains above the state average in reported results. Specific areas to watch include eighth-grade ELA at Issaquah Middle School, fifth-grade math at Clark Elementary, and math at Gibson Ek High School. Gibson Ek has strong ELA performance but substantially lower math proficiency, reflecting a distinct academic profile from Issaquah High School. Science results for both high schools are suppressed, so they should be treated as unavailable rather than as evidence of weak performance.
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