Skyline High School

Skyline High School is a roomy senior high in SAMMAMISH, Washington, one of the schools within Issaquah School District. The school hosts 2,244 students in grades 9 through 12. Enrollment runs roughly 292% larger than the state mean of about 573.

Across the 30 schools in Issaquah School District (19,098 students total), Skyline High School accounts for its share of the district's footprint.

Demographically, Skyline High School records that the largest single group is Asian at 44%, but no single group is in the majority; the rest reads as 37% White, 9% multiracial, 8% Hispanic, 2% Black. That is meaningfully more Asian than the county at large, where the share is closer to 21%.

Looking at the economic backdrop, Staff filings list 95 full-time-equivalent teachers, which works out to roughly 23.7:1 students per teacher. The state averages around 21.6:1, so this campus is higher than the state norm typical. About 9% of enrolled students meet the income threshold for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. That share is below King County's rate of about 38%.

After controlling for student poverty, Skyline High School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 74.3%; this one delivers 74.2%.

In the surrounding community, census data for King County shows median household income runs about $124,746, 57% of adults hold a bachelor's degree or higher, and the poverty rate sits near 5%. Across King County's 544 public schools (combined enrollment of about 278,492 students), Skyline High School is one campus in the mix.

Discovery Elementary is the nearest neighboring public school, about 0.8 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Skyline High School. On composite proficiency, Skyline High School comes 7th of 8 in the immediate cluster, beneath the nearby-schools average of 78.6%.

Geographically, the school is in a commuter-belt area.

Trend over the last 7 years. Looking back 7 years, enrollment at Skyline High School has held roughly steady, going from 2,194 students in 2018 to 2,244 in 2025. Over the same period, the White share decreased from 54% to 37%. Class-load math has pulled in: from 25.0:1 in 2018 to 23.7:1 in 2025.

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