Enrollment
618
South Dakota · 2024-25 NCES data
Middle school (grades 6-8) · Rapid City, SD
Federal NCES profile for South Middle School - 36, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 23/100.
The verdict
South Middle School - 36 earns 23/100 on the Resource Investment Index, with class sizes near the South Dakota median. It is also more racially and ethnically mixed than most South Dakota schools.
South Middle School - 36 has class sizes near the South Dakota median. Computed live against every South Dakota school reporting to NCES.
By Resource Investment Index, South Middle School - 36 ranks #5 of 5 middle schools in Rapid City, SD.
NCES ID 465982000533 Verify on NCES CCD record →
Enrollment
618
South Dakota · 2024-25 NCES data
Teachers (FTE)
42.0
Federal CCD staff survey
Students per teacher
14.7:1
vs 13.6:1 South Dakota avg
+8% vs state
Free-lunch eligible
40.5%
vs 28.8% South Dakota avg
+41% vs state
How South Middle School - 36 compares with South Dakota and U.S. medians
Slightly above state median
14.7:1 - 1.1 above the South Dakota state median of 13.6:1, indicating larger average class loads than typical schools in the state.
South Middle School - 36 is a large middle school in Rapid City, South Dakota, enrolling 618 students.
Class loads run somewhat heavier than typical: 14.7:1 puts it in the larger third of South Dakota schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 40.5% of students eligible for free meals.
By headcount it is one of the larger campuses in South Dakota, bigger than 94% of state schools at 618 students.
Its Resource Investment Index trails 97% of the 691 South Dakota schools with a score on record, one of the lower results on this measure.
Among 29 similarly sized, similarly resourced-need South Dakota schools statewide, it ranks #28, in the lower tier once campus size and economic need are matched.
Its student body is led by White (45%) and American Indian / Alaska Native (23%), more mixed than most schools in the state (diversity index 70/100).
Counselor access is stretched at roughly 618 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 31.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 18.9% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Rapid City's middle schools, it stands alongside Southwest Middle School - 38 (614 students): South Middle School - 36 is larger than that campus by headcount and runs leaner classes (14.7:1 vs 18.1:1).
Rapid City Area School District 51-4 also operates Central High School - 41 (1,998 students) and Stevens High School - 42 (1,771 students) alongside South Middle School - 36.
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
South Middle School - 36 on the metrics families compare, against South Dakota and U.S. means.
| Metric | This school | vs South Dakota | South Dakota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.7:1 | ▲ 8% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 40.5% | ▲ 41% | 28.8% | 51.7% |
| Enrollment | 618 | top 6% | - | - |
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 45.3% of enrollment.
Simpson diversity index - at 69.9, South Middle School - 36 is more mixed than the South Dakota school average of 27.6.
District-wide per-pupil expenditure for Rapid City Area School District 51-4, which includes South Middle School - 36.
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 |
|---|---|---|---|
| Central High School - 41 | Larger | Similar economic need | Higher S:T ratio |
| Stevens High School - 42 | Larger | Lower economic need | Higher S:T ratio |
| Southwest Middle School - 38 | Similar size | Lower economic need | Higher S:T ratio |
| East Middle School - 30 | Similar size | Lower economic need | Similar S:T ratio |
| Valley View Elementary - 13 | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to South Middle School - 36's own figures; each column derives from NCES Common Core of Data.
4 comparable middle schools (grades 6-8) serving the same city.
Matched by enrollment size and by staffing ratio across all of South Dakota, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on South Middle School - 36'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.
South Middle School - 36 has 618 students enrolled. It is a middle school in Rapid City, SD.
The student-teacher ratio at South Middle School - 36 is 14.7:1, which is 8% higher than the South Dakota average of 13.6:1 and 6% lower than the national average of 15.7:1.
40.5% of students at South Middle School - 36 are eligible for free lunch, compared to the South Dakota average of 28.8%.
The largest demographic group at South Middle School - 36 is White at 45.3% of enrollment, in Rapid City, SD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.9/100.
South Middle School - 36 has a Resource Investment Index of 23/100 (lower 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, South Middle School - 36 ranks #5 of 5 middle schools in Rapid City, SD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Rapid City on the city page.
South Middle School - 36 earns 23/100 on the Resource Investment Index, with class sizes near the South Dakota median. It is also more racially and ethnically mixed than most South Dakota 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 South Middle School - 36, Rapid City Area School District 51-4 also operates Central High School - 41 (1,998 students), Stevens High School - 42 (1,771 students), and Southwest Middle School - 38 (614 students). See the Rapid City Area School District 51-4 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, “South Middle School - 36, Rapid City SD.” 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/south-middle-school-36-sd
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