- Enrollment
- 2,582
- Students per teacher
- 15.2:1
- Resource Index
- 37/100
High school (grades 9-12) · Midlothian, VA
Cosby High
Federal NCES profile for Cosby High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 510084002661
👥 S:T ratio 30
🌟 Gifted program 30
🎓 Counselors 33
📋 Attendance 75
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cosby High earns 42/100 on the Resource Investment Index, with class sizes larger than 94% of Virginia schools. It is also one of the largest schools in Virginia.
- #1 of 5
- high schools in Midlothian · Resource Index
- 42
- Resource Index · Typical
- 17.5:1
- large classes for Virginia
- 13.0%
- free-lunch eligible
Cosby High has class sizes larger than 94% of Virginia schools. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Cosby High ranks #1 of 5 high schools in Midlothian, VA.
School address
District: Chesterfield County Public Schools · Virginia
NCES ID 510084002661 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+151 students YoY
Cosby High grew from 2,385 students in 2022-23 to 2,536 in 2023-24 (+6.3%).
Teacher FTE added 143.3 → 154.2 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+151 students YoY 510084002661 · Midlothian, VA High · LARGE · TRAD
2,507 enr · 17.5:1 · 13.0% lunch · RII 42
Nearest enrollment peer: Thomas Dale High (2,582 students)
Cosby High grew from 2,385 students in 2022-23 to 2,536 in 2023-24 (+6.3%). Teacher FTE added 143.3 → 154.2 across the same CCD years. Read with this school → · District book → · Virginia schools → · Find another →
Cosby High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Thomas Dale Hi
Thomas Dale High
2,582 students
- This school
Cosby High
2,507 students
- Manchester Hig
Manchester High
2,236 students
- Lloyd C. Bird
Lloyd C. Bird High
2,131 students
- Midlothian Hig
Midlothian High
2,048 students
- Meadowbrook Hi
Meadowbrook High
1,953 students
What this shows Cosby High reports 2,507 students on the CCD universe file.
How Cosby High compares
Cosby High is a growing campus on CCD: ratios and free-lunch share vs Virginia and U.S. means.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.5:1 | ▲ 26% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 13.0% | ▼ 77% | 57.6% | 51.7% |
| Enrollment | 2,507 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
17.5:1
Leaner classes than 27% of US schools, heavier class loads than most.
2,507
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
13.0%
free-lunch eligible
- 77% below the Virginia average of 57.6%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
17.5:1
students per teacher
- 26% above state mean
Top 94% in Virginia - lower ratio than 6% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
9.9%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$12,776
per pupil, district-wide
- below Virginia avg of $15,892
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors7.5 FTE
Per 334 students, the combined health-and-guidance staffing load for this school.
Discipline context
80
in-school suspensions + 72 out-of-school
Suspension rate: 3.2 per 100 students. Combined in-school and out-of-school rate: 6.1 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 63.3%
African American 16.2%
Hispanic or Latino 8.5%
Two or More 5.9%
Asian 5.8%
Native Hawaiian / Pacific Islander 0.2%
American Indian / Alaska Native 0.1%
Largest group: White at 63.3% of enrollment.
Student-body diversity index 55.9/100
Simpson diversity index - at 55.9, Cosby High is more mixed than the Virginia school average of 53.7.
Programs
AP courses offered 19
District finance for Chesterfield County Public Schools reports $12,776 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Cosby High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Thomas Dale High | Similar size | Higher economic need | Lower S:T ratio |
| Manchester High | Similar size | Higher economic need | Lower S:T ratio |
| Lloyd C. Bird High | Similar size | Higher economic need | Similar S:T ratio |
| Midlothian High | Similar size | Similar economic need | Similar S:T ratio |
| Meadowbrook High | Similar size | Higher economic need | Lower S:T ratio |
Comparisons are relative to Cosby High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,236
- Students per teacher
- 14.2:1
- Resource Index
- 39/100
- Enrollment
- 2,131
- Students per teacher
- 16.3:1
- Resource Index
- 32/100
- Enrollment
- 2,048
- Students per teacher
- 16.1:1
- Resource Index
- 41/100
- Enrollment
- 1,953
- Students per teacher
- 15.3:1
- Resource Index
- 38/100
Similar high schools in Midlothian
4 comparable high schools (grades 9-12) serving the same city.
Manchester High
Standard public school
2,236 students 14.2:1 students per teacher
Midlothian High
Standard public school
2,048 students 16.1:1 students per teacher
James River High
Standard public school
1,842 students 16.3:1 students per teacher
Clover Hill High
Standard public school
1,742 students 15.7:1 students per teacher
Nationwide high schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~2,507 students)
Frequently asked questions about Cosby High
How many students attend Cosby High?
Cosby High has 2,507 students enrolled. It is a high school in Midlothian, VA. CCD year-over-year: 2,385 (2022-23) → 2,536 (2023-24), up 151.
What is the student-teacher ratio at Cosby High?
The student-teacher ratio at Cosby High is 17.5:1, which is 26% higher than the Virginia average of 13.9:1 and 11% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Cosby High?
13.0% of students at Cosby High are eligible for free lunch, compared to the Virginia average of 57.6%.
What is the racial and ethnic makeup of Cosby High?
The largest demographic group at Cosby High is White at 63.3% of enrollment, in Midlothian, VA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.9/100.
What is the Resource Investment Index for Cosby High?
Cosby High has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Cosby High rank among high schools in Midlothian?
By Resource Investment Index, Cosby High ranks #1 of 5 high schools in Midlothian, VA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Midlothian on the city page.
What other schools are in Chesterfield County Public Schools?
Besides Cosby High, Chesterfield County Public Schools also operates Thomas Dale High (2,582 students), Manchester High (2,236 students), and Lloyd C. Bird High (2,131 students). See the Chesterfield County Public Schools district page for the complete list.