Lake Oswego Senior High School
Lake Oswego, OR · High School · Grades 9-12
Lake Oswego Senior High School is a high school in Lake Oswego, OR with 1,245 students enrolled and a 72% proficiency rate. Part of Lake Oswego SD 7J. NCES data from the U.S. Department of Education.
Get Lake Oswego Senior High School's new scores when they post
We'll email you the moment Lake Oswego Senior High School changes. No spam — only real updates.
About This School
Lake Oswego Senior High School is a high school located in Lake Oswego, Oregon. The school serves 1,245 students in grades 9-12. The student-to-teacher ratio is 19.5:1.
According to EDFacts assessment data, 72% of students meet grade-level proficiency standards in combined math and reading. The school reports a 88% graduation rate.
8% of students qualify for free or reduced-price lunch.
Lake Oswego Senior High School is part of the Lake Oswego SD 7J in Oregon.
How This School Compares
Lake Oswego Senior High School has 1,245 students enrolled, making it larger than the average school in Lake Oswego SD 7J (568 students). Its 72% proficiency rate is 7 percentage points above the district average of 65%. Compared to the Oregon state average of 48%, the school performs 25 points higher.
Frequently Asked Questions
Lake Oswego Senior High School has 1,245 students enrolled in grades 9-12. The student-to-teacher ratio is 19.5:1.
According to EDFacts data, 72% of students at Lake Oswego Senior High School meet grade-level proficiency standards in combined math and reading assessments.
Lake Oswego Senior High School has a 88% graduation rate, measuring the percentage of students who graduate within four years.
Lake Oswego Senior High School is part of the Lake Oswego SD 7J in Lake Oswego, Oregon. 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.
The this entity record above pulls directly from NCES Common Core of Data and EDFacts. What follows is the per-entity context — how this entity sits in the broader U.S. K-12 school outcomes and enrollment distribution and which underlying factors drive the headline numbers.
Every number on this page links back to NCES Common Core of Data and EDFacts; the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. public schools and districts. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: NCES Common Core of Data, 2026.