Enrollment
461
Missouri · 2024-25 NCES data
High school (grades 9-12) · St. Louis, MO
Gateway Science Academy High
Federal NCES profile for Gateway Science Academy High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 290059203205Charter school
👥 S:T ratio 36
📚 AP courses 65
🌟 Gifted program 30
📋 Attendance 55
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Gateway Science Academy High earns 47/100 on the Resource Investment Index, with class sizes larger than 87% of Missouri schools. It is also more racially and ethnically mixed than most Missouri schools.
- #3 of 5
- high schools in St. Louis · Resource Index
- 47
- Resource Index · Typical
- 15.9:1
- large classes for Missouri
- 39.1%
- free-lunch eligible
Gateway Science Academy High has class sizes larger than 87% of Missouri schools. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Gateway Science Academy High ranks #3 of 5 high schools in St. Louis, MO.
School address
District: Gateway Science Acad/St Louis · Missouri
NCES ID 290059203205 Verify on NCES CCD record →
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
15.9:1
vs 12.8:1 Missouri avg
+24% vs state
Free-lunch eligible
39.1%
vs 46.1% Missouri avg
-15% vs state
Student-teacher ratio in context
How Gateway Science Academy High compares with Missouri and U.S. medians
What stands out at Gateway Science Academy High
Gateway Science Academy High is a mid-sized charter high school in St. Louis, Missouri, enrolling 461 students.
Class loads run heavy: 15.9:1 is larger than about 87% of Missouri schools and 24% above the 12.8:1 state mean, so each teacher carries more students than is typical.
Its free-meal eligibility rate of 39.1% lands close to the Missouri typical range, neither a high- nor low-need campus by this measure.
Enrollment of 461 puts it in the larger third of Missouri schools by headcount.
Its Resource Investment Index lands in the lower third of 2,313 scored Missouri schools.
Among 500 similarly sized, similarly resourced-need Missouri schools statewide, it ranks #421, in the lower tier once campus size and economic need are matched.
Its student body is led by White (50%) and African American (24%), more mixed than most schools in the state (diversity index 67/100).
On the academic-pipeline side it reports 13 Advanced Placement courses.
Attendance runs somewhat below the norm, with 18.0% of students chronically absent per the 2021-22 civil-rights collection.
Its district draws 20.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 97 in- and out-of-school suspensions were reported for 461 students in the 2021-22 Civil Rights Data Collection.
Among St. Louis's high schools, it stands alongside Kipp St. Louis High (354 students): Gateway Science Academy High is larger than that campus by headcount and runs heavier classes (15.9:1 vs 5.7:1).
Gateway Science Acad/St Louis also operates Gateway Science Academy Middle (426 students) and Gateway Science Acad-South Ele (402 students) alongside Gateway Science Academy High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Gateway Science Academy High compares
Gateway Science Academy High on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.9:1 | ▲ 24% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 39.1% | ▼ 15% | 46.1% | 51.7% |
| Enrollment | 461 | top 26% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.9:1
Leaner classes than 39% of US schools, a middle-of-the-pack class size.
461
Bigger than 56% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
39.1%
free-lunch eligible
- 15% below the Missouri average of 46.1%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
15.9:1
students per teacher
- 24% above state mean
Top 87% in Missouri - lower ratio than 13% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
18.0%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$13,596
per pupil, district-wide
- above Missouri avg of $12,931
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
82
in-school suspensions + 15 out-of-school
Suspension rate: 17.8 per 100 students. Combined in-school and out-of-school rate: 21.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 49.9%
African American 24.1%
Hispanic or Latino 11.1%
Two or More 10.2%
Asian 4.1%
Native Hawaiian / Pacific Islander 0.4%
American Indian / Alaska Native 0.2%
Largest group: White at 49.9% of enrollment.
Student-body diversity index 66.8/100
Simpson diversity index - at 66.8, Gateway Science Academy High is more mixed than the Missouri school average of 31.0.
Programs
AP courses offered 13
Funding & spending
District-wide per-pupil expenditure for Gateway Science Acad/St Louis, which includes Gateway Science Academy High.
$13,596
Per student
+5%
vs Missouri
Avg $12,931
-18%
vs U.S.
Avg $16,593
Revenue mix
Local 10.8%
State 69.0%
Federal 20.2%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Gateway Science Academy High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Gateway Science Academy Middle | Similar size | Similar economic need | Lower S:T ratio |
| Gateway Science Acad-South Ele | Similar size | Higher economic need | Lower S:T ratio |
| Gateway Science Acad/St Louis | Similar size | Lower economic need | Lower S:T ratio |
Comparisons are relative to Gateway Science Academy High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 426
- Students per teacher
- 12.2:1
- Resource Index
- 35/100
- Enrollment
- 402
- Students per teacher
- 11.8:1
- Resource Index
- 30/100
- Enrollment
- 377
- Students per teacher
- 13.5:1
- Resource Index
- 38/100
Similar high schools in St. Louis
2 comparable high schools (grades 9-12) serving the same city.
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Missouri, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~461 students)
Similar student-teacher ratio (~15.9:1)
Next steps
Verify locally before acting on Gateway Science Academy High's federal record.
- Compare Gateway Science Academy High against another school. Compare schools
- Gateway Science Acad/St Louis's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Gateway Science Academy High
How many students attend Gateway Science Academy High?
Gateway Science Academy High has 461 students enrolled. It is a high school in St. Louis, MO.
What is the student-teacher ratio at Gateway Science Academy High?
The student-teacher ratio at Gateway Science Academy High is 15.9:1, which is 24% higher than the Missouri average of 12.8:1 and 1% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Gateway Science Academy High?
39.1% of students at Gateway Science Academy High are eligible for free lunch, compared to the Missouri average of 46.1%.
What is the racial and ethnic makeup of Gateway Science Academy High?
The largest demographic group at Gateway Science Academy High is White at 49.9% of enrollment, in St. Louis, MO. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.8/100.
What is the Resource Investment Index for Gateway Science Academy High?
Gateway Science Academy High has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Gateway Science Academy High rank among high schools in St. Louis?
By Resource Investment Index, Gateway Science Academy High ranks #3 of 5 high schools in St. Louis, MO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in St. Louis on the city page.
Is Gateway Science Academy High a good school?
Gateway Science Academy High earns 47/100 on the Resource Investment Index, with class sizes larger than 87% of Missouri schools. It is also more racially and ethnically mixed than most Missouri schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Gateway Science Acad/St Louis?
Besides Gateway Science Academy High, Gateway Science Acad/St Louis also operates Gateway Science Academy Middle (426 students), Gateway Science Acad-South Ele (402 students), and Gateway Science Acad/St Louis (377 students). See the Gateway Science Acad/St Louis district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.