Issaquah High School
Issaquah, WA · High School · Grades 9-12
Issaquah High School is a high school in Issaquah, WA with 2,412 students enrolled and a 73% proficiency rate. Part of Issaquah School District. NCES data from the U.S. Department of Education.
Issaquah High School is a high school in Issaquah, WA that enrolls 2,412 students in grades 9-12, putting it among the larger public campuses in the Issaquah School District. That headcount is above the 651-student average for schools in the district.
On the latest EDFacts assessments, 73% of students reached grade-level proficiency in combined math and reading — a rate near the top of the national distribution. That is 9 points above the 64% average for the Issaquah School District. Against the 49% Washington statewide average, the school sits 24 points higher.
Over the last three reported years the district proficiency rate this school inherits has risen by about 25 points. As a high school, it reports a 89% adjusted-cohort graduation rate, the share of first-time ninth-graders who earn a regular diploma within four years.
The student-teacher ratio is 22.8 to 1, above the U.S. average of roughly 16 to 1. A relatively low 14% of students qualify for free or reduced-price lunch.
Get Issaquah High School's new scores when they post
Subscribe for OpenSchoolData updates by email. No spam, unsubscribe anytime.
About This School
Issaquah High School is a high school located in Issaquah, Washington. The school serves 2,412 students in grades 9-12. The student-to-teacher ratio is 22.8:1.
According to EDFacts assessment data, 73% of students meet grade-level proficiency standards in combined math and reading. The school reports a 89% graduation rate.
14% of students qualify for free or reduced-price lunch.
Issaquah High School is part of the Issaquah School District in Washington.
How This School Compares
Issaquah High School has 2,412 students enrolled, making it larger than the average school in Issaquah School District (651 students). Its 73% proficiency rate is 9 percentage points above the district average of 64%. Compared to the Washington state average of 49%, the school performs 24 points higher. The 22.8:1 student-teacher ratio is above the national average of 16:1.
Frequently Asked Questions
Issaquah High School has 2,412 students enrolled in grades 9-12. The student-to-teacher ratio is 22.8:1.
According to EDFacts data, 73% of students at Issaquah High School meet grade-level proficiency standards in combined math and reading assessments.
Issaquah High School has a 89% graduation rate, measuring the percentage of students who graduate within four years.
Issaquah High School is part of the Issaquah School District in Issaquah, Washington. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
Source: NCES Common Core of Data, 2026.