Enrollment
1,134
South Carolina · 2024-25 NCES data
Other / mixed grade configuration · Bluffton, SC
Federal NCES profile for River Ridge Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 58/100.
The verdict
River Ridge Academy earns 58/100 on the Resource Investment Index, with class sizes near the South Carolina median.
River Ridge Academy has class sizes near the South Carolina median. Computed live against every South Carolina school reporting to NCES.
By Resource Investment Index, River Ridge Academy ranks #1 of 6 schools in Bluffton, SC.
NCES ID 450111001662 Verify on NCES CCD record →
Enrollment
1,134
South Carolina · 2024-25 NCES data
Teachers (FTE)
78.0
Federal CCD staff survey
Students per teacher
14.5:1
vs 14.3:1 South Carolina avg
+1% vs state
Free-lunch eligible
18.2%
vs 74.0% South Carolina avg
-75% vs state
How River Ridge Academy compares with South Carolina and U.S. medians
Slightly above state median
14.5:1 - 0.2 above the South Carolina state median of 14.3:1, indicating larger average class loads than typical schools in the state.
River Ridge Academy is a lower-poverty, large combined-grade school in Bluffton, South Carolina, enrolling 1,134 students.
At 14.5:1, 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.
Comparatively few students face economic hardship here, 18.2% free-meal eligibility runs 75% below the South Carolina average.
By headcount it is one of the larger campuses in South Carolina, bigger than 91% of state schools at 1,134 students.
Its Resource Investment Index outscores 93% of the 1,214 South Carolina schools with a score on record, a top-tier result on this measure.
Among 76 similarly sized, similarly resourced-need South Carolina schools statewide, it ranks #8, a top-tier result once campus size and economic need are matched.
Its student body is led by White (58%) and Hispanic or Latino (27%) (diversity index 59/100).
Counselor coverage runs a bit thin, about 284 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance holds up well here: only 8.8% of students were chronically absent, below the typical post-pandemic national figure.
Among Bluffton's public schools, it stands alongside Pritchardville Elementary (887 students): River Ridge Academy is larger than that campus by headcount and runs heavier classes (14.5:1 vs 12.5:1).
Beaufort 01 also operates May River High (1,731 students) and Bluffton High (1,375 students) alongside River Ridge Academy.
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
River Ridge Academy 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 | 14.5:1 | ▲ 1% | 14.3:1 | 15.7:1 |
| Free-lunch eligible | 18.2% | ▼ 75% | 74.0% | 51.7% |
| Enrollment | 1,134 | top 9% | - | - |
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 57.8% of enrollment.
Simpson diversity index - at 58.6, River Ridge Academy is more mixed than the South Carolina school average of 52.7.
District-wide per-pupil expenditure for Beaufort 01, which includes River Ridge Academy.
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 |
|---|---|---|---|
| May River High | Larger | Similar economic need | Higher S:T ratio |
| Bluffton High | Similar size | Higher economic need | Similar S:T ratio |
| Hilton Head Island High | Similar size | Higher economic need | Similar S:T ratio |
| Beaufort High | Similar size | Higher economic need | Similar S:T ratio |
| Bluffton Middle | Similar size | Higher economic need | Similar S:T ratio |
Comparisons are relative to River Ridge Academy's own figures; each column derives from NCES Common Core of Data.
5 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 River Ridge Academy'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.
River Ridge Academy has 1,134 students enrolled. It is a public school in Bluffton, SC.
The student-teacher ratio at River Ridge Academy is 14.5:1, which is 1% higher than the South Carolina average of 14.3:1 and 8% lower than the national average of 15.7:1.
18.2% of students at River Ridge Academy are eligible for free lunch, compared to the South Carolina average of 74.0%.
The largest demographic group at River Ridge Academy is White at 57.8% of enrollment, in Bluffton, SC. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 58.6/100.
River Ridge Academy has a Resource Investment Index of 58/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, River Ridge Academy ranks #1 of 6 schools in Bluffton, SC. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Bluffton on the city page.
River Ridge Academy earns 58/100 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 River Ridge Academy, Beaufort 01 also operates May River High (1,731 students), Bluffton High (1,375 students), and Hilton Head Island High (1,265 students). See the Beaufort 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, “River Ridge Academy, Bluffton 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/river-ridge-academy-sc
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