Enrollment
31
South Dakota · 2024-25 NCES data
Elementary school (grades K-5) · Willow Lake, SD
Mayfield Colony Elementary - 04
Federal NCES profile for Mayfield Colony Elementary - 04, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 34/100.
2024-25 NCES dataElementary school (grades K-5)NCES 467935001067
👥 S:T ratio 38
🌟 Gifted program 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mayfield Colony Elementary - 04 earns 34/100 on the Resource Investment Index, with class sizes larger than 73% of South Dakota schools. It is also less racially and ethnically mixed than most South Dakota schools.
- #4 of 4
- public schools in Willow Lake · Resource Index
- 34
- Resource Index · Typical
- 15.5:1
- large classes for South Dakota
- 31
- students enrolled
Mayfield Colony Elementary - 04 has class sizes larger than 73% of South Dakota schools. Computed live against every South Dakota school reporting to NCES.
By Resource Investment Index, Mayfield Colony Elementary - 04 ranks #4 of 4 public schools in Willow Lake, SD.
School address
District: Willow Lake School District 12-3 · South Dakota
NCES ID 467935001067 Verify on NCES CCD record →
Teachers (FTE)
2.0
Federal CCD staff survey
Students per teacher
15.5:1
vs 13.6:1 South Dakota avg
+14% vs state
Student-teacher ratio in context
How Mayfield Colony Elementary - 04 compares with South Dakota and U.S. medians
What stands out at Mayfield Colony Elementary - 04
Mayfield Colony Elementary - 04 is a mid-sized elementary school in Willow Lake, South Dakota, enrolling 31 students.
Class loads run somewhat heavier than typical: 15.5:1 puts it in the larger third of South Dakota schools by student-teacher ratio.
Enrollment of 31 puts it in the smaller third of South Dakota schools by headcount.
Its Resource Investment Index lands in the lower third of 691 scored South Dakota schools.
Its student body is predominantly White (100% of enrollment), among the less diverse in the state (diversity index 0/100).
Willow Lake School District 12-3 also operates Willow Lake Elementary - 02 (153 students) and Willow Lake High School - 01 (69 students) alongside Mayfield Colony Elementary - 04.
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 Mayfield Colony Elementary - 04 compares
Mayfield Colony Elementary - 04 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 | 15.5:1 | ▲ 14% | 13.6:1 | 15.7:1 |
| Enrollment | 31 | top 81% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
15.5:1
Leaner classes than 42% of US schools, a middle-of-the-pack class size.
31
Bigger than 4% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
15.5:1
students per teacher
- 14% above state mean
Top 73% in South Dakota - lower ratio than 27% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Funding equity
$11,121
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 100.0%
Largest group: White at 100.0% of enrollment.
Student-body diversity index 0.0/100
Simpson diversity index - at 0.0, Mayfield Colony Elementary - 04 is less mixed than the South Dakota school average of 27.6.
Programs
Funding & spending
District-wide per-pupil expenditure for Willow Lake School District 12-3, which includes Mayfield Colony Elementary - 04.
$11,121
Per student
-17%
vs South Dakota
Avg $13,477
-33%
vs U.S.
Avg $16,593
Revenue mix
Local 63.0%
State 27.0%
Federal 10.0%
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 Mayfield Colony Elementary - 04 Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Willow Lake Elementary - 02 | Larger | No free-lunch data | Higher S:T ratio |
| Willow Lake High School - 01 | Larger | No free-lunch data | Lower S:T ratio |
| Willow Lake Middle School - 03 | Larger | No free-lunch data | Higher S:T ratio |
| Shamrock Colony Elementary - 05 | Smaller | No free-lunch data | Lower S:T ratio |
| Collins Colony Elementary - 06 | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Mayfield Colony Elementary - 04's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 153
- Students per teacher
- 17:1
- Resource Index
- 37/100
- Enrollment
- 69
- Students per teacher
- 11.5:1
- Resource Index
- 60/100
- Enrollment
- 54
- Students per teacher
- 18:1
- Resource Index
- 51/100
- Enrollment
- 21
- Students per teacher
- 10.5:1
- Resource Index
- 44/100
- Enrollment
- 16
- Students per teacher
- 16:1
- Resource Index
- 33/100
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 (~31 students)
Similar student-teacher ratio (~15.5:1)
Next steps
Verify locally before acting on Mayfield Colony Elementary - 04's federal record.
- Compare Mayfield Colony Elementary - 04 against another school. Compare schools
- Willow Lake School District 12-3'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 Mayfield Colony Elementary - 04
How many students attend Mayfield Colony Elementary - 04?
Mayfield Colony Elementary - 04 has 31 students enrolled. It is an elementary school in Willow Lake, SD.
What is the student-teacher ratio at Mayfield Colony Elementary - 04?
The student-teacher ratio at Mayfield Colony Elementary - 04 is 15.5:1, which is 14% higher than the South Dakota average of 13.6:1 and 1% lower than the national average of 15.7:1.
What is the racial and ethnic makeup of Mayfield Colony Elementary - 04?
The largest demographic group at Mayfield Colony Elementary - 04 is White at 100.0% of enrollment, in Willow Lake, SD.
What is the Resource Investment Index for Mayfield Colony Elementary - 04?
Mayfield Colony Elementary - 04 has a Resource Investment Index of 34/100 (typical reported resources relative to schools nationally) based on 2 factors: student-teacher ratio. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Mayfield Colony Elementary - 04 rank among public schools in Willow Lake?
By Resource Investment Index, Mayfield Colony Elementary - 04 ranks #4 of 4 public schools in Willow Lake, SD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Willow Lake on the city page.
Is Mayfield Colony Elementary - 04 a good school?
Mayfield Colony Elementary - 04 earns 34/100 on the Resource Investment Index, with class sizes larger than 73% of South Dakota schools. It is also less 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.
What other schools are in Willow Lake School District 12-3?
Besides Mayfield Colony Elementary - 04, Willow Lake School District 12-3 also operates Willow Lake Elementary - 02 (153 students), Willow Lake High School - 01 (69 students), and Willow Lake Middle School - 03 (54 students). See the Willow Lake School District 12-3 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.