Serving 1,175 students in grades 9-12, Radnor Sr. High School ranks in the top 1% of all schools in Pennsylvania for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).
The percentage of students achieving proficiency in math is 85-89% (which is higher than the Pennsylvania state average of 36%). The percentage of students achieving proficiency in reading/language arts is 95% (which is higher than the Pennsylvania state average of 55%).
The student:teacher ratio of 13:1 is equal to the Pennsylvania state level of 13:1.
Minority enrollment is 31% of the student body (majority Asian), which is lower than the Pennsylvania state average of 39% (majority Hispanic and Black).
Quick Stats (2025)
Grades: 9-12
Enrollment: 1,175 students
Student:Teacher Ratio: 13:1
Minority Enrollment: 31%
Graduation Rate
: 97% (Top 5% in PA)
Overall Testing Rank
: Top 1%
Math Proficiency
: 85-89% (Top 5%)
Reading Proficiency
: 95% (Top 1%)
Science Proficiency
: 50-59% (Btm 50%)
Source: National Center for Education Statistics (NCES), PA Dept. of Education
Radnor Sr. High School ranks within the top 1% of all 2,733 schools in Pennsylvania (based off of combined math and reading proficiency testing data).
The diversity score of Radnor Sr. High School is 0.50, which is less than the diversity score at state average of 0.59. The school's diversity has stayed relatively flat over five school years.
Radnor Sr. High School is ranked #12 out of 2,733 schools, which ranks it among the top 1% of public schools in Pennsylvania.
What percent of students have achieved state testing proficiency in math and reading?
85-89% of students have achieved math proficiency (compared to the 36% PA state average), while 95% of students have achieved reading proficiency (compared to the 55% PA state average).
What is the graduation rate of Radnor Sr. High School?
The graduation rate of Radnor Sr. High School is 97%, which is higher than the Pennsylvania state average of 87%.
How many students attend Radnor Sr. High School?
1,175 students attend Radnor Sr. High School.
What is the racial composition of the student body?
69% of Radnor Sr. High School students are White, 15% of students are Asian, 6% of students are Hispanic, 6% of students are Black, and 4% of students are Two or more races.
What is the student:teacher ratio of Radnor Sr. High School?
Radnor Sr. High School has a student ration of 13:1, which is equal to the Pennsylvania state average of 13:1.
What grades does Radnor Sr. High School offer ?
Radnor Sr. High School offers enrollment in grades 9-12
What school district is Radnor Sr. High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 1,175 students
Student:Teacher Ratio: 13:1
Minority Enrollment: 31%
Graduation Rate
: 97% (Top 5%)
Overall Testing Rank
: Top 1%
Math Proficiency
: 85-89% (Top 5%)
Reading Proficiency
: 95% (Top 1%)
Science Proficiency
: 50-59% (Btm 50%)
Source: National Center for Education Statistics (NCES), PA Dept. of Education
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The food and classes are superb. The spirit, especially, is so positive and optimistic," commented a Radnor Senior High School ...
