Enrollment
421
High
DISTRICT 689 · STATE 738
SCHOOL COMMUNITY·PHILADELPHIA CITY SD·NCES 421899001010
National Constitution Center High School
18 S 7th St, Philadelphia, PA 19106 · (215) 400-7850 · Philadelphia County
GRADES 09–12HIGH11-CITYTITLE IREGULAR SCHOOL421 STUDENTS
Student : Teacher
22.1:1
19 FTE teachers
DISTRICT 18.7:1 · STATE 12.8:1
Free / Reduced Lunch
95%
399 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 9 | 114 | 27% |
| Grade 10 | 119 | 28% |
| Grade 11 | 85 | 20% |
| Grade 12 | 103 | 24% |
Student demographics
47%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 71% · 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
QUIET COMMUNITY
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START A DISCUSSIONTest scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
50.6%
PA avg 51.1% . -15.0pp since 2023
Math
28.9%
PA avg 43.0% . -3.1pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 51 of every 100 students at this school read and write at grade level and about 29 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are down about 15 points since 2023, while math scores are down about 3 points.
PSSA + Keystone results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 50.6% | 28.9% |
| 2023-24 | 65.6% | 32.0% |
% 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
37.7%
composite math + reading, all grades
Predicted
37.0%
based on PA schools with similar FRL share
Beats by
+0.7pp
above demographic expectation
What this means: About 38% 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 National Constitution Center High School
National Constitution Center High School's state test result (37.7% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| National Constitution Center High School this school | 421 | 94.8% | 37.7% |
| Franklin Benjamin High School Philadelphia | 570 | 95.3% | 8.8% |
| Bartram John - Main Philadelphia | 583 | 90.2% | 14.2% |
| Parkway Center City Middle College Philadelphia | 436 | 97.7% | 65.7% |
| Saul W B Agricultural School Philadelphia | 417 | 99.3% | 30.9% |
| STEM at Showalter Chester | 477 | 91.4% | 18.0% |
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 National Constitution Center High School ranks
Among high schools| Measure | This school | In Pennsylvania | In Philadelphia County |
|---|---|---|---|
| State test proficiency ranked highest first | 37.7% | #446 of 576 | #15 of 57 |
| Math proficiency ranked highest first | 28.9% | #422 of 626 ▼ 44 | #16 of 67 ▼ 2 |
| Reading proficiency ranked highest first | 50.6% | #409 of 626 ▼ 159 | #21 of 67 ▼ 4 |
| Enrollment ranked largest first | 421 | #470 of 713 | #52 of 70 |
| Students per teacher ranked fewest first | 22.1:1 | #584 of 601 | #52 of 65 |
| Diversity index ranked most diverse first | 47.2% | #169 of 604 | #33 of 65 |
| Free and reduced lunch ranked highest share first | 94.8% | #221 of 619 | #48 of 67 |
| Enrollment change since 2017-18 ranked fastest growth first | +7.7% | #109 of 221 | #18 of 31 |
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
421
+23 (+6%) vs 2020
+10% since 2010-11, when it was 382
Student : Teacher
22.1:1
was 20.9:1
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 | 421 | 19 | 22.1:1 | 95% (399) |
| 2023-24 | 398 | 26 | 15.3:1 | N/A |
| 2022-23 | 383 | 21 | 18.2:1 | 100% (383) |
| 2020-21 | 398 | 19 | 20.9:1 | 99% (395) |
| 2017-18 | 391 | 14 | 27.9:1 | 100% (391) |
| 2015-16 | 378 | N/A | N/A | 100% (378) |
| 2010-11 | 382 | 23 | 16.6:1 | 38% (145) |
Source: NCES Common Core of Data. Rows are the federal collections on file for National Constitution Center High School.
Since 2017-18: students up 8% (391 to 421); teachers up 36% (14 to 19).
About National Constitution Center High School
National Constitution Center High School is a high school with a street address in Philadelphia, Pennsylvania. Enrollment in 2024-25 was 421 students in grades 9 through 12. The average for high schools in Pennsylvania is about 738 students, so this school is 43% smaller than average.
National Constitution Center High School belongs to Philadelphia City SD, a district of 220 schools and 116,230 students.
A majority of students at National Constitution Center High School, 71%, are Black. The rest of enrollment is 15% Hispanic, 5% multiracial, 5% Asian, and 4% White. Among all residents of Philadelphia County, the Black share is about 39%. The chance that two students picked at random at National Constitution Center High School belong to different racial or ethnic groups, known as the diversity index, is 47%.
Its teaching staff equals 19 full-time positions, a ratio of 22.1:1. That ratio is over the 12.8:1 average for high schools in Pennsylvania. Around 95% of the school's students qualify for free or reduced-price meals. Across public schools in Philadelphia County, the average is about the same, 95%.
The school's average proficiency rate on state tests is 37.7%. For its free or reduced-price lunch share, the predicted value is 37.0%.
In Philadelphia County (population about 1,579,706), median household income is about $61,953, the share of adults with a bachelor's degree or higher is 35%, and about 17% of people live in poverty. A total of 309 public schools operate in Philadelphia County, serving about 182,005 students.
Mastery CHS-Lenfest Campus is the public school closest to National Constitution Center High School, about 0.3 miles away. National Constitution Center High School has at least 8 other public schools within five miles. National Constitution Center High School ranks 6th of 8 among nearby schools on average proficiency, with 37.7% against a local average of 58.0%.
By NCES locale, the school is City: Large, or inside a principal city with a population of 250,000 or more.
From 2020-21 to 2024-25, National Constitution Center High School went from 398 students to 421. The ratio was 20.9:1 in 2020-21 and 22.1:1 in 2024-25.
Threads on this page can be about enrollment questions, class placement, and PTA news. Alumni can share how the school prepared them.
Philadelphia County at a glance
View full county profilePopulation
1,579,706
Census ACS
Median income
$61,953
Household, ACS
Bachelor's+
35%
Adults 25+
Poverty rate
17%
Below federal line
Schools in county
309
182,005 students
Quick facts
Related schools
Other schools in Philadelphia City SD
- Northeast High SchoolHigh · 3,463 students
- Lincoln High SchoolHigh · 2,472 students
- Central High SchoolHigh · 2,329 students
- Northeast Community Propel AcademyElementary · 1,783 students
- Mayfair SchoolElementary · 1,763 students
- Washington George High SchoolHigh · 1,755 students
Other schools in Philadelphia
- Northeast High SchoolHigh · 3,463 students
- Philadelphia Performing Arts CSCombined · 2,572 students
- Lincoln High SchoolHigh · 2,472 students
- Central High SchoolHigh · 2,329 students
- MaST Community CS IICombined · 1,875 students
- First Philadelphia Preparatory CSCombined · 1,831 students
Nearby schools
- Mastery CHS-Lenfest Campus0.3 mi · 660
- McCall Gen George A School0.4 mi · 629
- Folk Arts-Cultural Treasures CS0.6 mi · 501
- Meredith William M School0.8 mi · 556
- Academy at Palumbo0.9 mi · 1,225
- The SD of Philadelphia Virtual Academy0.9 mi · 913
Frequently asked questions
About National Constitution Center High SchoolHow large is National Constitution Center High School?
National Constitution Center High School enrolls approximately 421 students in grades 09-12.
What grades does National Constitution Center High School serve?
National Constitution Center High School serves grades 09-12.
What is the student-teacher ratio at National Constitution Center High School?
The student-to-teacher ratio at National Constitution Center High School is approximately 22.1:1 (19 FTE teachers).
What is the racial breakdown of students at National Constitution Center High School?
At National Constitution Center High School, the student body is approximately 4% White, 15% Hispanic, 71% Black, 5% Asian, 5% Two or more.
Is National Constitution Center High School public or private?
National Constitution Center High School is a public K-12 school, overseen by Philadelphia City SD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.