Enrollment
439
South Dakota · 2024-25 NCES data
Elementary school (grades K-5) · Rapid City, SD
Corral Drive Elementary - 21
Federal NCES profile for Corral Drive Elementary - 21, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataElementary school (grades K-5)NCES 465982000542
👥 S:T ratio 20
🌟 Gifted program 30
🎓 Counselors 12
📋 Attendance 81
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Corral Drive Elementary - 21 earns 36/100 on the Resource Investment Index, with class sizes larger than 95% of South Dakota schools.
- #5 of 10
- elementary schools in Rapid City · Resource Index
- 36
- Resource Index · Typical
- 20:1
- large classes for South Dakota
- 5.6%
- free-lunch eligible
Corral Drive Elementary - 21 has class sizes larger than 95% of South Dakota schools. Computed live against every South Dakota school reporting to NCES.
By Resource Investment Index, Corral Drive Elementary - 21 ranks #5 of 10 elementary schools in Rapid City, SD.
School address
District: Rapid City Area School District 51-4 · South Dakota
NCES ID 465982000542 Verify on NCES CCD record →
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
20:1
vs 13.6:1 South Dakota avg
+47% vs state
Free-lunch eligible
5.6%
vs 28.8% South Dakota avg
-81% vs state
Student-teacher ratio in context
How Corral Drive Elementary - 21 compares with South Dakota and U.S. medians
What stands out at Corral Drive Elementary - 21
Corral Drive Elementary - 21 is a lower-poverty, large elementary school in Rapid City, South Dakota, enrolling 439 students.
Class loads run heavy: 20:1 is larger than about 95% of South Dakota schools and 47% above the 13.6:1 state mean, so each teacher carries more students than is typical.
Comparatively few students face economic hardship here, 5.6% free-meal eligibility runs 81% below the South Dakota average.
Enrollment of 439 puts it in the larger third of South Dakota schools by headcount.
Its Resource Investment Index lands in the lower third of 691 scored South Dakota schools.
Among 67 similarly sized, similarly resourced-need South Dakota schools statewide, it ranks #55, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (83% of enrollment) (diversity index 31/100).
Counselor access is stretched at roughly 439 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 7.5% of students were chronically absent, below the typical post-pandemic national figure.
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 elementary schools, it stands alongside Valley View Elementary - 13 (605 students): Corral Drive Elementary - 21 is smaller than that campus by headcount and runs heavier classes (20:1 vs 18.9:1).
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 Corral Drive Elementary - 21.
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
How Corral Drive Elementary - 21 compares
Corral Drive Elementary - 21 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 | 20:1 | ▲ 47% | 13.6:1 | 15.7:1 |
| Free-lunch eligible | 5.6% | ▼ 81% | 28.8% | 51.7% |
| Enrollment | 439 | top 13% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20:1
Leaner classes than 16% of US schools, heavier class loads than most.
439
Bigger than 53% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
5.6%
free-lunch eligible
- 81% below the South Dakota average of 28.8%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
20:1
students per teacher
- 47% above state mean
Top 95% in South Dakota - lower ratio than 5% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
7.5%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$11,191
per pupil, district-wide
- below South Dakota avg of $13,477
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 439 students, the combined health-and-guidance staffing load for this school.
Discipline context
8
in-school suspensions + 3 out-of-school
Suspension rate: 1.8 per 100 students. Combined in-school and out-of-school rate: 2.5 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
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.
Student demographics
White 82.9%
Hispanic or Latino 6.2%
Two or More 5.2%
Asian 3.6%
American Indian / Alaska Native 1.6%
African American 0.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 82.9% of enrollment.
Student-body diversity index 30.5/100
Simpson diversity index - at 30.5, Corral Drive Elementary - 21 is more mixed than the South Dakota school average of 27.6.
Programs
Funding & spending
District-wide per-pupil expenditure for Rapid City Area School District 51-4, which includes Corral Drive Elementary - 21.
$11,191
Per student
-17%
vs South Dakota
Avg $13,477
-33%
vs U.S.
Avg $16,593
Revenue mix
Local 54.3%
State 26.7%
Federal 18.9%
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.
How Corral Drive Elementary - 21 Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Central High School - 41 | Larger | Higher economic need | Similar S:T ratio |
| Stevens High School - 42 | Larger | Similar economic need | Similar S:T ratio |
| South Middle School - 36 | Larger | Higher economic need | Lower S:T ratio |
| Southwest Middle School - 38 | Larger | Similar economic need | Lower S:T ratio |
| East Middle School - 30 | Larger | Higher economic need | Lower S:T ratio |
Comparisons are relative to Corral Drive Elementary - 21's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,998
- Students per teacher
- 20:1
- Resource Index
- 18/100
- Enrollment
- 1,771
- Students per teacher
- 19.9:1
- Resource Index
- 18/100
- Enrollment
- 618
- Students per teacher
- 14.7:1
- Resource Index
- 23/100
- Enrollment
- 614
- Students per teacher
- 18.1:1
- Resource Index
- 31/100
- Enrollment
- 613
- Students per teacher
- 15:1
- Resource Index
- 24/100
Similar elementary schools in Rapid City
6 comparable elementary schools (grades K-5) serving the same city.
Valley View Elementary - 13
Standard public school
605 students 18.9:1 students per teacher
Meadowbrook Elementary - 10
Standard public school
478 students 15.9:1 students per teacher
Grandview Elementary - 06
Standard public school
431 students 16.6:1 students per teacher
Pinedale Elementary - 11
Standard public school
377 students 17.1:1 students per teacher
Knollwood Heights Elementary - 08
Standard public school
368 students 13.6:1 students per teacher
Woodrow Wilson Elementary - 17
Standard public school
328 students 16.4:1 students per teacher
Similar elementary schools statewide
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.
Similar enrollment (~439 students)
Next steps
Verify locally before acting on Corral Drive Elementary - 21's federal record.
- Compare Corral Drive Elementary - 21 against another school. Compare schools
- Rapid City Area School District 51-4's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
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.
Frequently asked questions about Corral Drive Elementary - 21
How many students attend Corral Drive Elementary - 21?
Corral Drive Elementary - 21 has 439 students enrolled. It is an elementary school in Rapid City, SD.
What is the student-teacher ratio at Corral Drive Elementary - 21?
The student-teacher ratio at Corral Drive Elementary - 21 is 20:1, which is 47% higher than the South Dakota average of 13.6:1 and 27% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Corral Drive Elementary - 21?
5.6% of students at Corral Drive Elementary - 21 are eligible for free lunch, compared to the South Dakota average of 28.8%.
What is the racial and ethnic makeup of Corral Drive Elementary - 21?
The largest demographic group at Corral Drive Elementary - 21 is White at 82.9% of enrollment, in Rapid City, SD.
What is the Resource Investment Index for Corral Drive Elementary - 21?
Corral Drive Elementary - 21 has a Resource Investment Index of 36/100 (typical 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).
How does Corral Drive Elementary - 21 rank among elementary schools in Rapid City?
By Resource Investment Index, Corral Drive Elementary - 21 ranks #5 of 10 elementary 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 elementary schools in Rapid City on the city page.
Is Corral Drive Elementary - 21 a good school?
Corral Drive Elementary - 21 earns 36/100 on the Resource Investment Index, with class sizes larger than 95% of 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.
What other schools are in Rapid City Area School District 51-4?
Besides Corral Drive Elementary - 21, Rapid City Area School District 51-4 also operates Central High School - 41 (1,998 students), Stevens High School - 42 (1,771 students), and South Middle School - 36 (618 students). See the Rapid City Area School District 51-4 district page for the complete list.
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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.