Enrollment
252
High
DISTRICT 271 · STATE 738
SCHOOL COMMUNITY·CORNELL SD·NCES 420681007335
Cornell High School
1099 Maple St, Coraopolis, PA 15108 · (412) 264-5010 · Allegheny County
GRADES 07–12HIGH21-SUBURBTITLE IREGULAR SCHOOL252 STUDENTS
Student : Teacher
10.5:1
24 FTE teachers
DISTRICT 10.1:1 · STATE 12.8:1
Free / Reduced Lunch
96%
241 students
DISTRICT 99% · STATE 75%
Community
0
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 7 | 53 | 21% |
| Grade 8 | 38 | 15% |
| Grade 9 | 30 | 12% |
| Grade 10 | 46 | 18% |
| Grade 11 | 40 | 16% |
| Grade 12 | 45 | 18% |
Student demographics
70%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 69% · STATE 59% · 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
School pathway
Feeds from
Based on grade levels within Cornell SD. Attendance zones can vary; confirm enrollment with the district.
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
32.5%
PA avg 51.1% . -0.8pp since 2023
Math
11.7%
PA avg 43.0% . +4.1pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 33 of every 100 students at this school read and write at grade level and about 12 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores have held steady since 2023, while math scores are up about 4 points.
PSSA + Keystone results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 32.5% | 11.7% |
| 2023-24 | 33.3% | 7.6% |
% Proficient or Advanced, all students and all tested grades.
Source: PSSA + Keystone. 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
23.9%
composite math + reading, all grades
Predicted
36.6%
based on PA schools with similar FRL share
Beats by
-12.7pp
below demographic expectation
What this means: About 24% of students here test proficient in math and reading, compared with the roughly 37% typical for Pennsylvania 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 Pennsylvania'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 Cornell High School
Cornell High School's state test result (23.9% proficient) is higher than 1 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Cornell High School this school | 252 | 95.6% | 23.9% |
| Center for Student Learning CS at Pennsbury Levittown | 170 | 88.8% | 20.5% |
| Bristol High School Bristol | 318 | 76.4% | 38.9% |
| Northgate MSHS Pittsburgh | 476 | 95.8% | 33.6% |
| Northern Lehigh SHS Slatington | 502 | 95.8% | 47.1% |
| Jeannette High School Jeannette | 405 | 88.4% | 34.2% |
Matched among Pennsylvania 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 Cornell High School ranks
Among high schools| Measure | This school | In Pennsylvania | In Allegheny County |
|---|---|---|---|
| State test proficiency ranked highest first | 23.9% | #508 of 576 | #38 of 45 |
| Math proficiency ranked highest first | 11.7% | #551 of 626 ▲ 17 | #44 of 53 ▼ 1 |
| Reading proficiency ranked highest first | 32.5% | #549 of 626 ▲ 12 | #44 of 53 no change |
| Enrollment ranked largest first | 252 | #580 of 713 | #52 of 59 |
| Students per teacher ranked fewest first | 10.5:1 | #41 of 601 | #6 of 52 |
| Diversity index ranked most diverse first | 70.4% | #26 of 604 | #2 of 52 |
| Free and reduced lunch ranked highest share first | 95.6% | #213 of 619 | #23 of 52 |
| Enrollment change since 2017-18 ranked steepest decline first | -6.7% | #243 of 373 | #19 of 29 |
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
252
+4 (+2%) vs 2020
-25% since 2010-11, when it was 334
Student : Teacher
10.5:1
was 9.2:1
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 | 252 | 24.1 | 10.5:1 | 96% (241) |
| 2023-24 | 241 | 26.1 | 9.2:1 | 100% (241) |
| 2022-23 | 241 | 26.1 | 9.2:1 | 86% (208) |
| 2020-21 | 248 | 27 | 9.2:1 | 88% (218) |
| 2017-18 | 270 | 25.9 | 10.4:1 | 89% (241) |
| 2015-16 | 283 | 26 | 10.9:1 | 100% (283) |
| 2010-11 | 334 | 31 | 10.8:1 | 64% (214) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Cornell High School.
Since 2017-18: students down 7% (270 to 252); teachers down 7% (25.9 to 24.1).
About Cornell High School
Located in Coraopolis, Pennsylvania, Cornell High School is a very small high school. Enrollment stands at 252 students, covering grades 7 through 12. High schools in Pennsylvania have about 738 students on average; enrollment here is 66% lower.
Cornell SD has a total of 2 schools and 541 students, Cornell High School among them.
Of every 100 students at Cornell High School, about 44 are White, the largest group. It is also 21% Hispanic, 19% Black, and 14% multiracial. For comparison, the population of Allegheny County is roughly 76% White. Its diversity index, the chance that two randomly chosen students belong to different racial or ethnic groups, is 70%.
There are 24.1 full-time-equivalent teachers at the school, a ratio of 10.5:1. Across high schools in Pennsylvania, the average ratio is 12.8:1. Of all students at Cornell High School, 96% are eligible for free or reduced-price lunch. That is 42 points above the 54% average for public schools in Allegheny County.
The BeatsExpectations prediction for Cornell High School is 36.6%, and its average proficiency rate across its state test results is 23.9%.
In Allegheny County, where the school is located, the median household earns about $78,548 a year, roughly 46% of adults have a four-year degree or more, and about 7% of residents live below the federal poverty line. Counting Cornell High School, Allegheny County has 277 public schools.
Cornell High School is less than a tenth of a mile from Cornell Elementary School, its nearest public school. Within five miles are at least 8 other public schools. Its average proficiency rate of 23.9% is below the 69.5% average for nearby schools.
Its NCES locale code is Suburb: Large: the school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.
Federal data show 248 students in 2020-21 and 252 in 2024-25, a difference of under 3%. Staffing shifted too: the ratio moved from 9.2:1 to 10.5:1.
People who know Cornell High School can post here about open houses, carpools, and field trips. Teachers and staff are welcome to share updates too.
Allegheny County at a glance
View full county profilePopulation
1,238,177
Census ACS
Median income
$78,548
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
277
141,392 students
Quick facts
Related schools
Other schools in Coraopolis
- David E Williams Middle SchoolMiddle · 952 students
- Cornell Elementary SchoolElementary · 289 students
Other Cornell High schools
One other US public school is named Cornell High. Cornell High School is the largest of the 2.
- Cornell HighCornell, WI · 100 students
Nearby schools
- Cornell Elementary School0.0 mi · 289
- J H Brooks Elementary School0.9 mi · 382
- Osborne Elementary School1.6 mi · 397
- Richard J. Hyde Elementary School2.1 mi · 237
- McCormick Elementary School2.1 mi · 229
- Quaker Valley Middle School2.1 mi · 425
Frequently asked questions
About Cornell High SchoolHow large is Cornell High School?
Cornell High School enrolls approximately 252 students in grades 07-12.
Is Cornell High School an elementary, middle, or high school?
Cornell High School is a high school covering grades 07-12.
How many teachers does Cornell High School have?
Cornell High School employs 24 FTE teachers, for a student-to-teacher ratio of 10.5:1.
What is the student diversity at Cornell High School?
Student demographics at Cornell High School are roughly 44% White, 21% Hispanic, 19% Black, 2% Asian, 14% Two or more.
Is Cornell High School public or private?
Cornell High School is a public K-12 school, overseen by Cornell SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.