Cosby High
🇺🇸 Official data · 2025Midlothian, Virginia 23112 · Chesterfield County Public Schools
#24 of 317 high schools in Virginia
#346 of 16,910 nationally
About Cosby High
Cosby High is a public high located in Midlothian, in the Chesterfield County Public Schools school district of Virginia, United States. It caters for Grades 9–12. In 2025 it enrolled 2,507 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 88.3 out of 100, placing it in the top 5% of high schools in United States and 24th of 317 ranked high schools in Virginia. Its strongest component is math proficiency (98th percentile), and its weakest is students per teacher (41th percentile).
Other published figures: enrollment 2,507.
There are 21 schools in Midlothian; Cosby High ranks 5th of 21 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)97%
- Reading proficiency (30%)94%
- Community advantage (fewer free/reduced-price lunch) (25%)16%
- Students per teacher (15%)16.0
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Cosby High by the official sources.
- Enrollment
- 2,507
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 16%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 16.0
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 94%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 97%
- Share of tested students proficient or above (all students, all grades).
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Cosby High
Closest schools by straight-line distance, with their Success Index (US).
Woolridge Elementary
Midlothian · Public elementary · Grades PK–5
813 students · 2.6 km away
Winterpock Elementary
Chesterfield · Public elementary · Grades PK–5
834 students · 3.0 km away
Clover Hill Elementary
Midlothian · Public elementary · Grades PK–5
866 students · 3.0 km away
Moseley Elementary
Moseley · Public elementary · Grades PK–5
972 students · 4.5 km away
Spring Run Elementary
Midlothian · Public elementary · Grades PK–5
848 students · 5.2 km away
Alberta Smith Elementary
Midlothian · Public elementary · Grades PK–5
671 students · 5.5 km away
Grange Hall Elementary
Moseley · Public elementary · Grades PK–5
724 students · 5.9 km away
Swift Creek Middle
Midlothian · Public middle · Grades 6–8
1,180 students · 6.3 km away
Swift Creek Elementary
Midlothian · Public elementary · Grades PK–5
724 students · 6.4 km away
Manchester High
Midlothian · Public high · Grades 9–12
2,236 students · 7.0 km away
Similar schools
Public high schools in Virginia with a comparable Enrollment.
Gar-Field High
Woodbridge · Public high · Grades 9–12
2,524 students
Woodson High
Fairfax · Public high · Grades 9–12
2,436 students
South Lakes High
Reston · Public high · Grades 9–12
2,434 students
Thomas Dale High
Chester · Public high · Grades 9–12
2,582 students
McLean High
McLean · Public high · Grades 9–12
2,428 students
Yorktown High
Arlington · Public high · Grades 9–12
2,593 students
Frequently asked questions
Is Cosby High a good school?
Cosby High has a Success Index (US) of 88.3 out of 100 (Top 5% of high schools in United States) and ranks #24 of 317 in Virginia. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Cosby High rank in Virginia?
Cosby High ranks #24 of 317 high schools in Virginia and #346 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Cosby High?
Cosby High had 2,507 students in 2025.
Is Cosby High a elementary school or a high school?
Cosby High is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Cosby High?
There are 10 schools within 15 km of Cosby High; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.