Enrollment
250
South Carolina · 2024-25 NCES data
Other / mixed grade configuration · North Charleston, SC
Federal NCES profile for Allegro Charter School of Music, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 53/100.
The verdict
Allegro Charter School of Music earns 53/100 on the Resource Investment Index, with class sizes smaller than 97% of South Carolina schools.
Allegro Charter School of Music has class sizes smaller than 97% of South Carolina schools. Computed live against every South Carolina school reporting to NCES.
By Resource Investment Index, Allegro Charter School of Music ranks #4 of 18 schools in North Charleston, SC.
NCES ID 450144001655 Verify on NCES CCD record →
Enrollment
250
South Carolina · 2024-25 NCES data
Teachers (FTE)
30.0
Federal CCD staff survey
Students per teacher
8.3:1
vs 14.3:1 South Carolina avg
-42% vs state
Free-lunch eligible
84.3%
vs 74.0% South Carolina avg
+14% vs state
How Allegro Charter School of Music compares with South Carolina and U.S. medians
Smaller classes than state median
8.3:1 - 6.0 below the South Carolina state median of 14.3:1, indicating smaller average class loads than typical schools in the state.
Allegro Charter School of Music is a high-poverty, small charter combined-grade school in North Charleston, South Carolina, enrolling 250 students.
Classes run notably small here: at 8.3:1, Allegro Charter School of Music is leaner than roughly 97% of South Carolina schools and 42% under the state's 14.3:1 norm, more adult attention per pupil than most peers.
Its free-meal eligibility rate of 84.3% lands close to the South Carolina typical range, neither a high- nor low-need campus by this measure.
Enrollment of 250 puts it in the smaller third of South Carolina schools by headcount.
Its Resource Investment Index lands in the upper third of 1,214 scored South Carolina schools.
Against 19 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #8.
Its student body is led by African American (63%) and Hispanic or Latino (16%) (diversity index 55/100).
Counselor coverage is strong, about 125 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 40.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 71 in- and out-of-school suspensions were reported for 250 students in the 2021-22 Civil Rights Data Collection.
Among North Charleston's public schools, it stands alongside Meeting Street Elementary (1,133 students): Allegro Charter School of Music is smaller than that campus by headcount and runs heavier classes (8.3:1 vs 8.1:1).
Charleston 01 also operates Wando High (2,588 students) and Rb Stall High (2,135 students) alongside Allegro Charter School of Music.
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
Allegro Charter School of Music on the metrics families compare, against South Carolina and U.S. means.
| Metric | This school | vs South Carolina | South Carolina avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 8.3:1 | ▼ 42% | 14.3:1 | 15.7:1 |
| Free-lunch eligible | 84.3% | ▲ 14% | 74.0% | 51.7% |
| Enrollment | 250 | top 88% | - | - |
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 63.2% of enrollment.
Simpson diversity index - at 54.9, Allegro Charter School of Music is more mixed than the South Carolina school average of 52.7.
District-wide per-pupil expenditure for Charleston 01, which includes Allegro Charter School of Music.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Wando High | Larger | Lower economic need | Higher S:T ratio |
| Rb Stall High | Larger | Higher economic need | Higher S:T ratio |
| West Ashley High | Larger | Higher economic need | Higher S:T ratio |
| Lucy Garrett Beckham High | Larger | Lower economic need | Higher S:T ratio |
| James Island Charter High | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Allegro Charter School of Music's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of South Carolina, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Allegro Charter School of Music'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.
Allegro Charter School of Music has 250 students enrolled. It is a public school in North Charleston, SC.
The student-teacher ratio at Allegro Charter School of Music is 8.3:1, which is 42% lower than the South Carolina average of 14.3:1 and 47% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
84.3% of students at Allegro Charter School of Music are eligible for free lunch, compared to the South Carolina average of 74.0%.
The largest demographic group at Allegro Charter School of Music is African American at 63.2% of enrollment, in North Charleston, SC. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.9/100.
Allegro Charter School of Music has a Resource Investment Index of 53/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Allegro Charter School of Music ranks #4 of 18 schools in North Charleston, SC. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in North Charleston on the city page.
Allegro Charter School of Music earns 53/100 on the Resource Investment Index, with class sizes smaller than 97% of South Carolina 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.
Besides Allegro Charter School of Music, Charleston 01 also operates Wando High (2,588 students), Rb Stall High (2,135 students), and West Ashley High (2,069 students). See the Charleston 01 district page for the complete list.
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.
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PlainSchools, “Allegro Charter School of Music, North Charleston SC.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/allegro-charter-school-of-music-sc
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