Enrollment
439
South Dakota · 2024-25 NCES data
2024-25 NCES data Elementary school (grades K-5) NCES 465982000542
Corral Drive Elementary - 21 — Rapid City, SD
Federal NCES profile for Corral Drive Elementary - 21, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 35/100.
👥 Class size 16
🌟 Gifted program 30
🎓 Counselors 12
📋 Attendance 81
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Rapid City Area School District 51-4 · South Dakota
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
21:1
vs 13.5:1 South Dakota avg
+56% 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
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Corral Drive Elementary - 21 reports 439 enrolled students to the National Center for Education Statistics (NCES) alongside 22.0 full-time-equivalent teachers, producing a 21:1 student-teacher ratio. That figure sits 56% above the South Dakota state mean of 13.5:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 32% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 5.6% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 81% below the South Dakota average and 89% below the national baseline. Counselor coverage works out to roughly 439 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 7.5% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Rapid City Area School District 51-4 spends $11,988 per pupil district-wide, below the South Dakota average of $16,140 and below the national average of $19,490. Revenue comes 54.3% from local sources (property taxes), 26.7% from the state, and 18.9% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 35/100 (F), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Corral Drive Elementary - 21 compares
Cross-validating school-level NCES values against South Dakota state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs South Dakota | South Dakota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21:1 | ▲ 56% | 13.5:1 | 15.9:1 |
| Free-lunch eligible | 5.6% | ▼ 81% | 28.8% | 51.8% |
| Enrollment | 439 | top 87% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
5.6%
free-lunch eligible
— 81% below the South Dakota average of 28.8%
Below the 40% Title I threshold — federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
21:1
students per teacher
— 56% above state mean
Top 96% in South Dakota — lower ratio than 4% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
7.5%
chronically absent (missed 10%+ of school days)
Below 10% — strong attendance relative to the post-pandemic national landscape.
Funding equity
$11,988
per pupil, district-wide
— below South Dakota avg of $16,140
Below the U.S. average per-pupil spend — funding constraints 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
Enrollment 439 Top 87% in South Dakota — larger than 13% of 698 state schools
Teachers (FTE) 22.0
Students per teacher 21:1 +56% vs state
Free-lunch eligible 5.6% -81% vs state
NCES ID 465982000542
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.
Programs & staff
Counselors (FTE) 1.0
Students per counselor 439:1
Discipline & special education
Chronically absent 7.5%
In-school suspensions 8
Out-of-school suspensions 3
Funding & spending
District-wide per-pupil expenditure for Rapid City Area School District 51-4, which includes Corral Drive Elementary - 21.
$11,988
Per student
-26%
vs South Dakota
Avg $16,140
-38%
vs U.S.
Avg $19,490
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.
Other Schools in This District
- Enrollment
- 1,998
- Students per teacher
- 17.7:1
- Enrollment
- 1,771
- Students per teacher
- 18.9:1
- Enrollment
- 618
- Students per teacher
- 13.2:1
- Enrollment
- 614
- Students per teacher
- 19.4:1
- Enrollment
- 613
- Students per teacher
- 14.6:1
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 18.2:1 students per teacher
Meadowbrook Elementary - 10
Standard public school
478 students 15.5:1 students per teacher
Grandview Elementary - 06
Standard public school
431 students 15.6:1 students per teacher
Pinedale Elementary - 11
Standard public school
377 students 16.6:1 students per teacher
Knollwood Heights Elementary - 08
Standard public school
368 students 13.2:1 students per teacher
Woodrow Wilson Elementary - 17
Standard public school
328 students 16.9:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
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 a 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 21:1, which is 56% higher than the South Dakota average of 13.5:1 and 32% higher than the national average of 15.9:1.
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%. The school serves a diverse student body 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 35/100 (F) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.