Serving 2,536 students in grades 9-12, Cosby High School ranks in the top 20% of all schools in Virginia for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).
The percentage of students achieving proficiency in math is 70% (which is higher than the Virginia state average of 54%). The percentage of students achieving proficiency in reading/language arts is 92% (which is higher than the Virginia state average of 69%).
The student:teacher ratio of 16:1 is higher than the Virginia state level of 14:1.
Minority enrollment is 35% of the student body (majority Black), which is lower than the Virginia state average of 56% (majority Black).
Quick Stats (2025)
Grades: 9-12
Enrollment: 2,536 students
Student:Teacher Ratio: 16:1
Minority Enrollment: 35%
Graduation Rate
: 98% (Top 1% in VA)
Overall Testing Rank
: Top 20%
Math Proficiency
: 70% (Top 30%)
Reading Proficiency
: 92% (Top 5%)
Science Proficiency
: 83% (Top 5%)
Source: National Center for Education Statistics (NCES), VA Dept. of Education
Cosby High School ranks within the top 20% of all 1,792 schools in Virginia (based off of combined math and reading proficiency testing data).
The diversity score of Cosby High School is 0.54, which is less than the diversity score at state average of 0.72. The school's diversity has stayed relatively flat over five school years.
Cosby High School is ranked #194 out of 1,792 schools, which ranks it among the top 20% of public schools in Virginia.
What schools are Cosby High School often compared to?
Cosby High Schoolis often viewed alongside schools like Midlothian High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
70% of students have achieved math proficiency (compared to the 54% VA state average), while 92% of students have achieved reading proficiency (compared to the 69% VA state average).
What is the graduation rate of Cosby High School?
The graduation rate of Cosby High School is 98%, which is higher than the Virginia state average of 89%.
How many students attend Cosby High School?
2,536 students attend Cosby High School.
What is the racial composition of the student body?
65% of Cosby High School students are White, 16% of students are Black, 8% of students are Hispanic, 6% of students are Two or more races, and 5% of students are Asian.
What is the student:teacher ratio of Cosby High School?
Cosby High School has a student ration of 16:1, which is higher than the Virginia state average of 14:1.
What grades does Cosby High School offer ?
Cosby High School offers enrollment in grades 9-12 (offers virtual instruction).
What school district is Cosby High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 2,536 students
Student:Teacher Ratio: 16:1
Minority Enrollment: 35%
Graduation Rate
: 98% (Top 1%)
Overall Testing Rank
: Top 20%
Math Proficiency
: 70% (Top 30%)
Reading Proficiency
: 92% (Top 5%)
Science Proficiency
: 83% (Top 5%)
Source: National Center for Education Statistics (NCES), VA Dept. of Education
