Enrollment
431
Missouri · 2024-25 NCES data
Other / mixed grade configuration · St.Louis, MO
Federal NCES profile for Atlas Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
The verdict
Atlas Elementary earns 30/100 on the Resource Investment Index, with class sizes larger than 99% of Missouri schools.
Atlas Elementary has class sizes larger than 99% of Missouri schools. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Atlas Elementary ranks #2 of 3 schools in St.Louis, MO.
NCES ID 290061803400 Verify on NCES CCD record →
Enrollment
431
Missouri · 2024-25 NCES data
Teachers (FTE)
16.0
Federal CCD staff survey
Students per teacher
26.9:1
vs 12.8:1 Missouri avg
+110% vs state
Free-lunch eligible
100.0%
vs 46.1% Missouri avg
+117% vs state
How Atlas Elementary compares with Missouri and U.S. medians
Atlas Elementary is a high-poverty, mid-sized charter combined-grade school in St.Louis, Missouri, enrolling 431 students.
Class loads run heavy: 26.9:1 is larger than about 99% of Missouri schools and 110% above the 12.8:1 state mean, so each teacher carries more students than is typical.
Economic need is high: 100.0% of students qualify for free meals, 117% above the Missouri average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 431 puts it in the larger third of Missouri schools by headcount.
Its Resource Investment Index trails 96% of the 2,313 Missouri schools with a score on record, one of the lower results on this measure.
Among 199 similarly sized, similarly resourced-need Missouri schools statewide, it ranks #173, in the lower tier once campus size and economic need are matched.
Its student body is predominantly African American (80% of enrollment) (diversity index 35/100).
16.0% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Atlas Public Schools spends $17,570 per pupil, 36% above the Missouri average, a better-resourced district than most.
Its district draws 18.8% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Atlas Public Schools is a single-school charter district, so Atlas Elementary operates independently rather than alongside district-mates.
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
Atlas Elementary on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 26.9:1 | ▲ 110% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 117% | 46.1% | 51.7% |
| Enrollment | 431 | top 30% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: African American at 80.0% of enrollment.
Simpson diversity index - at 34.5, Atlas Elementary is more mixed than the Missouri school average of 31.0.
District-wide per-pupil expenditure for Atlas Public Schools, which includes Atlas Elementary.
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.
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.
Next steps
Verify locally before acting on Atlas Elementary's federal record.
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.
Atlas Elementary has 431 students enrolled. It is a public school in St.Louis, MO.
The student-teacher ratio at Atlas Elementary is 26.9:1, which is 110% higher than the Missouri average of 12.8:1 and 71% higher than the national average of 15.7:1.
100.0% of students at Atlas Elementary are eligible for free lunch, compared to the Missouri average of 46.1%.
The largest demographic group at Atlas Elementary is African American at 80.0% of enrollment, in St.Louis, MO.
Atlas Elementary has a Resource Investment Index of 30/100 (lower reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Atlas Elementary ranks #2 of 3 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 schools in St.Louis on the city page.
Atlas Elementary earns 30/100 on the Resource Investment Index, with class sizes larger than 99% of 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.
None; Atlas Public Schools is a single-school charter district, and Atlas Elementary is its only campus.
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.