Governor Mifflin Senior High School is the only high school in the Governor Mifflin School District.
Serving 1,425 students in grades 9-12, Governor Mifflin Sr. High School ranks in the bottom 50% of all schools in Pennsylvania for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 14% (which is lower than the Pennsylvania state average of 38%). The percentage of students achieving proficiency in reading/language arts is 48% (which is lower than the Pennsylvania state average of 55%).
The student-teacher ratio of 18:1 is higher than the Pennsylvania state level of 13:1.
Minority enrollment is 45% of the student body (majority Hispanic), which is higher than the Pennsylvania state average of 40% (majority Hispanic).
Quick Facts (2026-27)
- Grades: 9-12
- Enrollment: 1,425 students
- Student-Teacher Ratio: 18:1
- Minority Enrollment: 45%
- Graduation Rate: 93% (Top 50% in PA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 14% (Btm 50%)
- Reading Proficiency: 48% (Btm 50%)
- Science Proficiency: 22% (Btm 50%)
- Attendance Zone: Governor Mifflin SHS's attendance zone covers the entire school district of Reading, PA, encompassing approximately 41.3 square miles. Typically, families can expect a drive of 5-10 minutes to the school, with the average distance from the school to the edge of the zone being about 2.7 miles, while the furthest boundary is located 8.6 miles away.
- Source: National Center for Education Statistics (NCES), PA Dept. of Education
School Overview
Governor Mifflin Sr. High School's student population of 1,425 students has stayed relatively flat over five school years.
The teacher population of 80 teachers has declined by 6% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
1,425 students
Total Classroom Teachers
80 teachers
Year Founded
1953
School Calendar
School Motto
Educate, Inspire, and Empower Every Student, Every Day
School Rankings
Governor Mifflin Sr. High School ranks within the bottom 50% of all 2,733 schools in Pennsylvania (based off of combined math and reading proficiency testing data).
The diversity score of Governor Mifflin Sr. High School is 0.57, 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
#2167 out of 2733 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
14%
38%
Reading/Language Arts Test Scores (% Proficient)
48%
55%
Science Test Scores (% Proficient)
22%
57%
Student-Teacher Ratio
18:1
13:1
Asian
1%
5%
Hispanic
36%
16%
Black
4%
14%
White
55%
60%
Two or more races
4%
5%
All Ethnic Groups
Graduation Rate
93%
87.5%
Chronically Absent Students
(22-23)25.9%
23.3%
Eligible for Free Lunch
100%
59%
Eligible for Reduced Lunch (22-23)
4%
2%
School Statewide Testing
School District Name
Sports
Colors
Maroon, Gold
School Mascot
Marvin The Mustang
Source: National Center for Education Statistics (NCES), PA Dept. of Education
Frequently Asked Questions
What is Governor Mifflin Sr. High School's ranking?
Governor Mifflin Sr. High School is ranked #2167 out of 2,733 schools, which ranks it among the bottom 50% of public schools in Pennsylvania.
What schools are Governor Mifflin Sr. High School often compared to?
Governor Mifflin Sr. High Schoolis often viewed alongside schools like Wilson High School, Wyomissing Area Jr. Sr. High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
14% of students have achieved math proficiency (compared to the 38% PA state average), while 48% of students have achieved reading proficiency (compared to the 55% PA state average).
What is the graduation rate of Governor Mifflin Sr. High School?
The graduation rate of Governor Mifflin Sr. High School is 93%, which is higher than the Pennsylvania state average of 87.5%.
How many students attend Governor Mifflin Sr. High School?
1,425 students attend Governor Mifflin Sr. High School.
What is the racial composition of the student body?
55% of Governor Mifflin Sr. High School students are White, 36% of students are Hispanic, 4% of students are Black, 4% of students are Two or more races, and 1% of students are Asian.
What is the student-teacher ratio of Governor Mifflin Sr. High School?
Governor Mifflin Sr. High School has a student ration of 18:1, which is higher than the Pennsylvania state average of 13:1.
What grades does Governor Mifflin Sr. High School offer ?
Governor Mifflin Sr. High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Governor Mifflin Sr. High School part of?
Governor Mifflin Sr. High School is part of Governor Mifflin School District.
School Reviews
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