Enrollment
539
Wisconsin · 2024-25 NCES data
Other / mixed grade configuration · Mequon, WI
Federal NCES profile for Donges Bay Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 59/100.
The verdict
Donges Bay Elementary earns 59/100 on the Resource Investment Index, with class sizes larger than 76% of Wisconsin schools.
Donges Bay Elementary has class sizes larger than 76% of Wisconsin schools. Computed live against every Wisconsin school reporting to NCES.
By Resource Investment Index, Donges Bay Elementary ranks #1 of 3 schools in Mequon, WI.
NCES ID 550913001083 Verify on NCES CCD record →
Enrollment
539
Wisconsin · 2024-25 NCES data
Teachers (FTE)
35.0
Federal CCD staff survey
Students per teacher
15.4:1
vs 14.4:1 Wisconsin avg
+7% vs state
Free-lunch eligible
7.2%
vs 38.5% Wisconsin avg
-81% vs state
How Donges Bay Elementary compares with Wisconsin and U.S. medians
Slightly above state median
15.4:1 - 1.0 above the Wisconsin state median of 14.4:1, indicating larger average class loads than typical schools in the state.
Donges Bay Elementary is a lower-poverty, mid-sized combined-grade school in Mequon, Wisconsin, enrolling 539 students.
Class loads run somewhat heavier than typical: 15.4:1 puts it in the larger third of Wisconsin schools by student-teacher ratio.
Comparatively few students face economic hardship here, 7.2% free-meal eligibility runs 81% below the Wisconsin average.
Enrollment of 539 puts it in the larger third of Wisconsin schools by headcount.
Its Resource Investment Index outscores 91% of the 2,202 Wisconsin schools with a score on record, a top-tier result on this measure.
Against 234 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #29.
Its student body is predominantly White (83% of enrollment) (diversity index 30/100).
12.1% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Mequon-Thiensville School District spends $25,027 per pupil, 68% above the Wisconsin average, a better-resourced district than most.
Among Mequon's public schools, it stands alongside Wilson Elementary (558 students): Donges Bay Elementary is smaller than that campus by headcount and runs heavier classes (15.4:1 vs 14.7:1).
Mequon-Thiensville School District also operates Homestead High (1,204 students) and Wilson Elementary (558 students) alongside Donges Bay Elementary.
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
Donges Bay Elementary on the metrics families compare, against Wisconsin and U.S. means.
| Metric | This school | vs Wisconsin | Wisconsin avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 15.4:1 | ▲ 7% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 7.2% | ▼ 81% | 38.5% | 51.7% |
| Enrollment | 539 | top 18% | - | - |
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 83.1% of enrollment.
Simpson diversity index - at 30.2, Donges Bay Elementary is less mixed than the Wisconsin school average of 35.7.
District-wide per-pupil expenditure for Mequon-Thiensville School District, which includes Donges Bay Elementary.
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 |
|---|---|---|---|
| Homestead High | Larger | Similar economic need | Similar S:T ratio |
| Wilson Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Oriole Lane Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Steffen Middle | Similar size | Similar economic need | Similar S:T ratio |
| Lake Shore Middle | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Donges Bay Elementary's own figures; each column derives from NCES Common Core of Data.
2 comparable other schools (grades Mixed) serving the same city.
Matched by enrollment size and by staffing ratio across all of Wisconsin, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Donges Bay Elementary'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.
Donges Bay Elementary has 539 students enrolled. It is a public school in Mequon, WI.
The student-teacher ratio at Donges Bay Elementary is 15.4:1, which is 7% higher than the Wisconsin average of 14.4:1 and 2% lower than the national average of 15.7:1.
7.2% of students at Donges Bay Elementary are eligible for free lunch, compared to the Wisconsin average of 38.5%.
The largest demographic group at Donges Bay Elementary is White at 83.1% of enrollment, in Mequon, WI.
Donges Bay Elementary has a Resource Investment Index of 59/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Donges Bay Elementary ranks #1 of 3 schools in Mequon, WI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Mequon on the city page.
Donges Bay Elementary earns 59/100 on the Resource Investment Index, with class sizes larger than 76% of Wisconsin 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 Donges Bay Elementary, Mequon-Thiensville School District also operates Homestead High (1,204 students), Wilson Elementary (558 students), and Oriole Lane Elementary (499 students). See the Mequon-Thiensville School District 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, “Donges Bay Elementary, Mequon WI.” 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/donges-bay-elementary-wi
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