Lake Oswego High School is a public high school in Lake Oswego, Oregon, United States. It is part of the Lake Oswego School District.
Serving 1,275 students in grades 9-12, Lake Oswego Senior High School ranks in the top 20% of all schools in Oregon for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 48% (which is higher than the Oregon state average of 31%). The percentage of students achieving proficiency in reading/language arts is 74% (which is higher than the Oregon state average of 44%).
The student-teacher ratio of 19:1 is higher than the Oregon state level of 17:1.
Minority enrollment is 35% of the student body (majority Asian), which is lower than the Oregon state average of 42% (majority Hispanic).
Quick Facts (2025)
- Grades: 9-12
- Enrollment: 1,275 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 35%
- Graduation Rate: 95% (Top 10% in OR)
- Overall Testing Rank: Top 20%
- Math Proficiency: 48% (Top 20%)
- Reading Proficiency: 74% (Top 5%)
- Science Proficiency: 44% (Top 30%)
- Source: National Center for Education Statistics (NCES), OR Dept. of Education
Top Rankings
Lake Oswego Senior High School ranks among the top 20% of public schools in Oregon for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
Graduation Rate
School Overview
Lake Oswego Senior High School's student population of 1,275 students has stayed relatively flat over five school years.
The teacher population of 68 teachers has grown by 15% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,275 students
Gender %
Total Classroom Teachers
68 teachers
Year Founded
1950
Colors
White, Navy Blue
School Calendar
First Day of School
Tue. Sep 2, 2025
Last Day of School
Thu. Jun 11, 2026
School Rankings
Lake Oswego Senior High School ranks within the top 20% of all 1,174 schools in Oregon (based off of combined math and reading proficiency testing data).
The diversity score of Lake Oswego Senior High School is 0.55, which is less than the diversity score at state average of 0.60. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#119 out of 1174 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
48%
31%
Reading/Language Arts Test Scores (% Proficient)
74%
44%
Science Test Scores (% Proficient)
44%
30%
Student-Teacher Ratio
19:1
17:1
American Indian
1%
1%
Asian
13%
4%
Hispanic
9%
26%
Black
1%
3%
White
65%
58%
Hawaiian
n/a
1%
Two or more races
11%
7%
All Ethnic Groups
Graduation Rate
95%
81%
Eligible for Free Lunch
11%
51%
Eligible for Reduced Lunch
2%
3%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), OR Dept. of Education
School Notes
- School Mascot: Pilot Joe
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Lake Oswego Senior High School's ranking?
Lake Oswego Senior High School is ranked #119 out of 1,174 schools, which ranks it among the top 20% of public schools in Oregon.
What schools are Lake Oswego Senior High School often compared to?
Lake Oswego Senior High Schoolis often viewed alongside schools like Lakeridge High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
48% of students have achieved math proficiency (compared to the 31% OR state average), while 74% of students have achieved reading proficiency (compared to the 44% OR state average).
What is the graduation rate of Lake Oswego Senior High School?
The graduation rate of Lake Oswego Senior High School is 95%, which is higher than the Oregon state average of 81%.
How many students attend Lake Oswego Senior High School?
1,275 students attend Lake Oswego Senior High School.
What is the racial composition of the student body?
65% of Lake Oswego Senior High School students are White, 13% of students are Asian, 11% of students are Two or more races, 9% of students are Hispanic, 1% of students are American Indian, and 1% of students are Black.
What is the student-teacher ratio of Lake Oswego Senior High School?
Lake Oswego Senior High School has a student ration of 19:1, which is higher than the Oregon state average of 17:1.
What grades does Lake Oswego Senior High School offer ?
Lake Oswego Senior High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Lake Oswego Senior High School part of?
Lake Oswego Senior High School is part of Lake Oswego SD 7j School District.
In what neighborhood is Lake Oswego Senior High School located?
Lake Oswego Senior High School is located in the Forest Highlands neighborhood of Lake Oswego, OR.
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