Enrollment
511
Wisconsin · 2024-25 NCES data
Other / mixed grade configuration · Mukwonago, WI
Federal NCES profile for Clarendon Avenue Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 59/100.
The verdict
Clarendon Avenue Elementary earns 59/100 on the Resource Investment Index, with class sizes near the Wisconsin median.
Clarendon Avenue Elementary has class sizes near the Wisconsin median. Computed live against every Wisconsin school reporting to NCES.
By Resource Investment Index, Clarendon Avenue Elementary ranks #3 of 6 schools in Mukwonago, WI.
NCES ID 551006001316 Verify on NCES CCD record →
Enrollment
511
Wisconsin · 2024-25 NCES data
Teachers (FTE)
37.0
Federal CCD staff survey
Students per teacher
13.8:1
vs 14.4:1 Wisconsin avg
-4% vs state
Free-lunch eligible
13.5%
vs 38.5% Wisconsin avg
-65% vs state
How Clarendon Avenue Elementary compares with Wisconsin and U.S. medians
At or below state median
13.8:1 - 0.6 below the Wisconsin state median of 14.4:1, indicating smaller average class loads than typical schools in the state.
Clarendon Avenue Elementary is a lower-poverty, mid-sized combined-grade school in Mukwonago, Wisconsin, enrolling 511 students.
At 13.8:1, its student-teacher ratio sits close to the Wisconsin median, within a few percentage points of the 14.4:1 state norm, neither notably crowded nor notably small.
Comparatively few students face economic hardship here, 13.5% free-meal eligibility runs 65% below the Wisconsin average.
Enrollment of 511 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.
Among 363 similarly sized, similarly resourced-need Wisconsin schools statewide, it ranks #37, a top-tier result once campus size and economic need are matched.
Its student body is predominantly White (88% of enrollment) (diversity index 23/100).
Counselor coverage runs a bit thin, about 319 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Attendance holds up well here: only 5.5% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Mukwonago School District spends $11,949 per pupil, 20% below the Wisconsin average, a leaner-resourced district than most.
Among Mukwonago's public schools, it stands alongside Rolling Hills Elementary (455 students): Clarendon Avenue Elementary is larger than that campus by headcount and runs heavier classes (13.8:1 vs 13.4:1).
Mukwonago School District also operates Mukwonago High (1,604 students) and Park View Middle (721 students) alongside Clarendon Avenue 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
Clarendon Avenue 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 | 13.8:1 | ▼ 4% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 13.5% | ▼ 65% | 38.5% | 51.7% |
| Enrollment | 511 | top 20% | - | - |
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 87.5% of enrollment.
Simpson diversity index - at 22.8, Clarendon Avenue Elementary is less mixed than the Wisconsin school average of 35.7.
District-wide per-pupil expenditure for Mukwonago School District, which includes Clarendon Avenue 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 |
|---|---|---|---|
| Mukwonago High | Larger | Similar economic need | Higher S:T ratio |
| Park View Middle | Larger | Similar economic need | Similar S:T ratio |
| Big Bend Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Rolling Hills Elementary | Similar size | Similar economic need | Similar S:T ratio |
| Section Elementary | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Clarendon Avenue Elementary's own figures; each column derives from NCES Common Core of Data.
5 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 Clarendon Avenue 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.
Clarendon Avenue Elementary has 511 students enrolled. It is a public school in Mukwonago, WI.
The student-teacher ratio at Clarendon Avenue Elementary is 13.8:1, which is 4% lower than the Wisconsin average of 14.4:1 and 12% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
13.5% of students at Clarendon Avenue Elementary are eligible for free lunch, compared to the Wisconsin average of 38.5%.
The largest demographic group at Clarendon Avenue Elementary is White at 87.5% of enrollment, in Mukwonago, WI.
Clarendon Avenue Elementary has a Resource Investment Index of 59/100 (higher 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, Clarendon Avenue Elementary ranks #3 of 6 schools in Mukwonago, WI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Mukwonago on the city page.
Clarendon Avenue Elementary earns 59/100 on the Resource Investment Index, with class sizes near the Wisconsin median. 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 Clarendon Avenue Elementary, Mukwonago School District also operates Mukwonago High (1,604 students), Park View Middle (721 students), and Big Bend Elementary (455 students). See the Mukwonago 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, “Clarendon Avenue Elementary, Mukwonago 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/clarendon-avenue-elementary-wi
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