Enrollment
309
South Carolina · 2024-25 NCES data
High school (grades 9-12) · Darlington, SC
Federal NCES profile for Mayo High for Math Science & Technology, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
The verdict
Mayo High for Math Science & Technology earns 44/100 on the Resource Investment Index, with class sizes near the South Carolina median.
Mayo High for Math Science & Technology has class sizes near the South Carolina median. Computed live against every South Carolina school reporting to NCES.
By Resource Investment Index, Mayo High for Math Science & Technology ranks #1 of 7 public schools in Darlington, SC.
NCES ID 450186000190 Verify on NCES CCD record →
Enrollment
309
South Carolina · 2024-25 NCES data
Teachers (FTE)
23.0
Federal CCD staff survey
Students per teacher
13.4:1
vs 14.3:1 South Carolina avg
-6% vs state
Free-lunch eligible
100.0%
vs 74.0% South Carolina avg
+35% vs state
How Mayo High for Math Science & Technology compares with South Carolina and U.S. medians
At or below state median
13.4:1 - 0.9 below the South Carolina state median of 14.3:1, indicating smaller average class loads than typical schools in the state.
Mayo High for Math Science & Technology is a high-poverty, mid-sized high school in Darlington, South Carolina, enrolling 309 students.
At 13.4:1, its student-teacher ratio sits close to the South Carolina median, within a few percentage points of the 14.3:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 100.0% lands close to the South Carolina typical range, neither a high- nor low-need campus by this measure.
Enrollment of 309 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 254 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #50.
Its student body is led by White (54%) and African American (29%) (diversity index 61/100).
On the academic-pipeline side it reports 4 Advanced Placement courses.
Counselor coverage runs a bit thin, about 309 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Its district draws 21.4% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Darlington's high schools, it stands alongside Darlington High (965 students): Mayo High for Math Science & Technology is smaller than that campus by headcount and runs heavier classes (13.4:1 vs 13.2:1).
Darlington 01 also operates Hartsville High (1,129 students) and Darlington High (965 students) alongside Mayo High for Math Science & Technology.
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
Mayo High for Math Science & Technology 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 | 13.4:1 | ▼ 6% | 14.3:1 | 15.7:1 |
| Free-lunch eligible | 100.0% | ▲ 35% | 74.0% | 51.7% |
| Enrollment | 309 | top 83% | - | - |
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: White at 54.0% of enrollment.
Simpson diversity index - at 61.2, Mayo High for Math Science & Technology is more mixed than the South Carolina school average of 52.7.
District-wide per-pupil expenditure for Darlington 01, which includes Mayo High for Math Science & Technology.
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 |
|---|---|---|---|
| Hartsville High | Larger | Similar economic need | Similar S:T ratio |
| Darlington High | Larger | Similar economic need | Similar S:T ratio |
| Darlington Middle | Larger | Similar economic need | Similar S:T ratio |
| Hartsville Middle | Larger | Similar economic need | Lower S:T ratio |
| St. John's Elementary | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Mayo High for Math Science & Technology's own figures; each column derives from NCES Common Core of Data.
1 comparable high schools (grades 9-12) 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 Mayo High for Math Science & Technology'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.
Mayo High for Math Science & Technology has 309 students enrolled. It is a high school in Darlington, SC.
The student-teacher ratio at Mayo High for Math Science & Technology is 13.4:1, which is 6% lower than the South Carolina average of 14.3:1 and 15% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
100.0% of students at Mayo High for Math Science & Technology are eligible for free lunch, compared to the South Carolina average of 74.0%.
The largest demographic group at Mayo High for Math Science & Technology is White at 54.0% of enrollment, in Darlington, SC. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 61.2/100.
Mayo High for Math Science & Technology has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Mayo High for Math Science & Technology ranks #1 of 7 public schools in Darlington, SC. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Darlington on the city page.
Mayo High for Math Science & Technology earns 44/100 on the Resource Investment Index, with class sizes near the South Carolina median. 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 Mayo High for Math Science & Technology, Darlington 01 also operates Hartsville High (1,129 students), Darlington High (965 students), and Darlington Middle (888 students). See the Darlington 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, “Mayo High for Math Science & Technology, Darlington 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/mayo-high-for-math-science-technology-sc
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