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Honest take: what's the hardest part about being a student at COSBY HIGH?
Community prompt from u/allk12. Replies below.
Enrollment
2,507
High
DISTRICT 1,871 · STATE 1,213
SCHOOL COMMUNITY·CHESTERFIELD COUNTY PUBLIC SCHOOLS·NCES 510084002661
Cosby High
14300 Fox Club Parkway, Midlothian, VA 23112 · (804) 639-8340 · Chesterfield County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL2,507 STUDENTS
Student : Teacher
15.9:1
158 FTE teachers
DISTRICT 14.0:1 · STATE 13.9:1
Free / Reduced Lunch
16%
402 students
DISTRICT 56% · STATE 66%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 586 | 23% |
| Grade 10 | 682 | 27% |
| Grade 11 | 589 | 23% |
| Grade 12 | 650 | 26% |
Student demographics
56%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 70% · STATE 71% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
SOL 2024-25 . % PassingEnglish Language Arts
94.0%
VA avg 74.2% . -3.0pp since 2022
Math
83.0%
VA avg 72.7% . -5.0pp since 2022
What this means: On the SOL, Virginia's statewide test, about 94 of every 100 students at this school read and write at grade level and about 83 of 100 do math at grade level. Across all Virginia schools, those numbers are about 74 and 73. Reading and writing scores are down about 3 points since 2022, while math scores are down about 5 points.
SOL results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 94.0% | 83.0% |
| 2023-24 | 94.0% | 90.0% |
| 2022-23 | 97.0% | 88.0% |
% Passing, all students and all tested grades.
Source: SOL. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
86.0%
composite math + reading, all grades
Predicted
83.7%
based on VA schools with similar FRL share
Beats by
+2.3pp
above demographic expectation
What this means: About 86% of students here test proficient in math and reading, compared with the roughly 84% typical for Virginia schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Virginia's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Cosby High
Cosby High's state test result (86.0% proficient) is higher than 3 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Cosby High this school | 2,507 | 16.0% | 86.0% |
| Midlothian High Midlothian | 2,048 | 15.0% | 85.4% |
| Grassfield High Chesapeake | 2,345 | 13.1% | 91.9% |
| Floyd Kellam High Virginia Beach | 1,842 | 13.5% | 88.8% |
| Great Bridge High Chesapeake | 1,491 | 20.2% | 84.5% |
| Yorktown High Arlington | 2,593 | 13.5% | 81.6% |
Matched among Virginia high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Cosby High ranks
Among high schools| Measure | This school | In Virginia | In Chesterfield County |
|---|---|---|---|
| State test proficiency ranked highest first | 86.0% | #32 of 311 | #1 of 10 |
| Math proficiency ranked highest first | 83.0% | #161 of 316 ▼ 98 | #2 of 10 no change |
| Reading proficiency ranked highest first | 94.0% | #38 of 316 ▼ 16 | #1 of 10 no change |
| Enrollment ranked largest first | 2,507 | #19 of 325 | #2 of 11 |
| Students per teacher ranked fewest first | 15.9:1 | #240 of 309 | #10 of 11 |
| Diversity index ranked most diverse first | 55.8% | #164 of 309 | #10 of 11 |
| Free and reduced lunch ranked highest share first | 16.0% | #297 of 319 | #10 of 11 |
| Enrollment change since 2017-18 ranked fastest growth first | +14.7% | #31 of 131 | #2 of 8 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
2,507
+291 (+13%) vs 2020
+21% since 2010-11, when it was 2,079
Student : Teacher
15.9:1
was 18.3:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 2,507 | 157.7 | 15.9:1 | 16% (402) |
| 2023-24 | 2,536 | 154.2 | 16.4:1 | 16% (394) |
| 2022-23 | 2,385 | 143.3 | 16.6:1 | 14% (345) |
| 2020-21 | 2,216 | 121 | 18.3:1 | N/A |
| 2017-18 | 2,186 | 116.8 | 18.7:1 | 10% (216) |
| 2015-16 | 2,074 | 112 | 18.5:1 | 6% (123) |
| 2010-11 | 2,079 | 109 | 19.1:1 | 0% (0) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Cosby High.
Since 2017-18: students up 15% (2,186 to 2,507); teachers up 35% (116.8 to 157.7).
About Cosby High
Cosby High is one of the public schools in Midlothian, Virginia. It is a high-enrollment high school. Its enrollment is 2,507 students, spread over grades 9 through 12. That compares with an average of about 1,213 students for high schools in Virginia.
Chesterfield County Public Schools has 64,194 students in 65 schools, and Cosby High is one of those schools.
Of every 100 students at Cosby High, about 63 are White. After that, the student body is 16% Black, 9% Hispanic, 6% multiracial, and 6% Asian. The diversity index for Cosby High is 56%. For US public schools as a whole it is 70%.
The school has 157.7 full-time-equivalent teachers and a ratio of 15.9 students per teacher. High schools in Virginia average 13.9:1, 2.0 fewer students per teacher than here. Of all students at Cosby High, 16% are eligible for free or reduced-price lunch. The rate at public schools in Chesterfield County averages 54%, higher than here.
Cosby High scores 86.0% on state tests, averaged across results. The predicted figure, based on its student poverty level, is 83.7%.
Census data for Chesterfield County show median household income comes to about $101,931, about 44% of adults have at least a bachelor's degree, and roughly 5% of residents are in poverty. There are 76 public schools in the county, enrolling about 64,194, Cosby High among them.
Cosby High is about 1.6 miles from Woolridge Elementary, its nearest public school. Cosby High has at least 8 other public schools within five miles. Cosby High's average proficiency of 86.0% compares with 84.1% for its nearest scored neighbors.
Locale: Suburb: Large. In NCES terms, the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Enrollment in 2024-25 stood at 2,507, compared with 2,216 in 2020-21. In 2020-21, the student-to-teacher ratio was 18.3:1; by 2024-25 it was 15.9:1.
The discussion board for Cosby High is open to topics like athletics, class schedules, and weather closures. Parents, students, alumni, and staff are welcome to post.
Chesterfield County at a glance
View full county profilePopulation
377,869
Census ACS
Median income
$101,931
Household, ACS
Bachelor's+
44%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
76
64,194 students
Quick facts
Related schools
Other schools in Chesterfield County Public Schools
- Thomas Dale HighHigh · 2,582 students
- Manchester HighHigh · 2,236 students
- Lloyd C. Bird HighHigh · 2,131 students
- Midlothian HighHigh · 2,048 students
- Meadowbrook HighHigh · 1,953 students
- James River HighHigh · 1,842 students
Other schools in Midlothian
- Manchester HighHigh · 2,236 students
- Midlothian HighHigh · 2,048 students
- James River HighHigh · 1,842 students
- Clover Hill HighHigh · 1,742 students
- Tomahawk Creek MiddleMiddle · 1,650 students
- Bailey Bridge MiddleMiddle · 1,496 students
Other Cosby High schools
One other US public school is named Cosby High. Cosby High is the largest of the 2.
- Cosby High SchoolCosby, TN · 343 students
Nearby schools
- Woolridge Elementary1.6 mi · 813
- Winterpock Elementary1.9 mi · 834
- Clover Hill Elementary1.9 mi · 866
- Moseley Elementary2.8 mi · 972
- Spring Run Elementary3.2 mi · 848
- Alberta Smith Elementary3.4 mi · 671
Frequently asked questions
About Cosby HighWhat is the total enrollment at Cosby High?
Cosby High enrolls approximately 2,507 students in grades 09-12.
Is Cosby High an elementary, middle, or high school?
Cosby High is a high school covering grades 09-12.
How many teachers does Cosby High have?
Cosby High employs 158 FTE teachers, for a student-to-teacher ratio of 15.9:1.
What is the student diversity at Cosby High?
Student demographics at Cosby High are roughly 63% White, 9% Hispanic, 16% Black, 6% Asian, 6% Two or more.
Is Cosby High public or private?
Cosby High is a public K-12 school, overseen by Chesterfield County Public Schools.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.