Enrollment
417
Wisconsin · 2024-25 NCES data
Other / mixed grade configuration · Muskego, WI
Mill Valley Elementary
Federal NCES profile for Mill Valley Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
2024-25 NCES dataOther / mixed grade configurationNCES 551017001333
👥 S:T ratio 51
🌟 Gifted program 30
📋 Attendance 86
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mill Valley Elementary earns 55/100 on the Resource Investment Index, with class sizes near the Wisconsin median.
- #2 of 5
- public schools in Muskego · Resource Index
- 55
- Resource Index · Higher
- 12.3:1
- students per teacher
- 9.4%
- free-lunch eligible
Mill Valley Elementary has class sizes near the Wisconsin median. Computed live against every Wisconsin school reporting to NCES.
By Resource Investment Index, Mill Valley Elementary ranks #2 of 5 public schools in Muskego, WI.
School address
District: Muskego-Norway School District · Wisconsin
NCES ID 551017001333 Verify on NCES CCD record →
Teachers (FTE)
34.0
Federal CCD staff survey
Students per teacher
12.3:1
vs 14.4:1 Wisconsin avg
-15% vs state
Free-lunch eligible
9.4%
vs 38.5% Wisconsin avg
-76% vs state
Student-teacher ratio in context
How Mill Valley Elementary compares with Wisconsin and U.S. medians
What stands out at Mill Valley Elementary
Mill Valley Elementary is a lower-poverty, mid-sized combined-grade school in Muskego, Wisconsin, enrolling 417 students.
Class sizes run a bit leaner than typical: 12.3:1 puts it in the smaller third of Wisconsin schools by student-teacher ratio.
Comparatively few students face economic hardship here, 9.4% free-meal eligibility runs 76% below the Wisconsin average.
Enrollment of 417 puts it in the larger third of Wisconsin schools by headcount.
Its Resource Investment Index lands in the upper third of 2,202 scored Wisconsin schools.
Against 317 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #74.
Its student body is predominantly White (84% of enrollment) (diversity index 29/100).
Attendance holds up well here: only 5.8% of students were chronically absent, below the typical post-pandemic national figure.
Among Muskego's public schools, it stands alongside Bay Lane Elementary (912 students): Mill Valley Elementary is smaller than that campus by headcount and runs leaner classes (12.3:1 vs 15.2:1).
Muskego-Norway School District also operates Muskego High (1,634 students) and Bay Lane Elementary (912 students) alongside Mill Valley 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
How Mill Valley Elementary compares
Mill Valley 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 | 12.3:1 | ▼ 15% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 9.4% | ▼ 76% | 38.5% | 51.7% |
| Enrollment | 417 | top 31% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.3:1
Leaner classes than 73% of US schools, among the more generously staffed nationally.
417
Bigger than 50% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
9.4%
free-lunch eligible
- 76% below the Wisconsin average of 38.5%
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
12.3:1
students per teacher
- 15% below state mean
Top 37% in Wisconsin - lower ratio than 63% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
5.8%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$13,073
per pupil, district-wide
- below Wisconsin avg of $14,919
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 + 3 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.7 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 83.5%
Hispanic or Latino 9.6%
Two or More 5.3%
African American 1.0%
Asian 0.7%
Largest group: White at 83.5% of enrollment.
Student-body diversity index 29.1/100
Simpson diversity index - at 29.1, Mill Valley Elementary is less mixed than the Wisconsin school average of 35.7.
Programs
Funding & spending
District-wide per-pupil expenditure for Muskego-Norway School District, which includes Mill Valley Elementary.
$13,073
Per student
-12%
vs Wisconsin
Avg $14,919
-21%
vs U.S.
Avg $16,593
Revenue mix
Local 49.0%
State 44.0%
Federal 7.1%
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 Mill Valley Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Muskego High | Larger | Similar economic need | Higher S:T ratio |
| Bay Lane Elementary | Larger | Similar economic need | Higher S:T ratio |
| Muskego Lakes Middle | Larger | Similar economic need | Higher S:T ratio |
| Lake Denoon Middle | Larger | Similar economic need | Similar S:T ratio |
| Lakeview Elementary | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Mill Valley Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,634
- Students per teacher
- 17.2:1
- Resource Index
- 41/100
- Enrollment
- 912
- Students per teacher
- 15.2:1
- Resource Index
- 67/100
- Enrollment
- 676
- Students per teacher
- 14.4:1
- Resource Index
- 47/100
- Enrollment
- 673
- Students per teacher
- 13.7:1
- Resource Index
- 43/100
- Enrollment
- 290
- Students per teacher
- 12.6:1
- Resource Index
- 68/100
Similar other schools in Muskego
1 comparable other schools (grades Mixed) serving the same city.
Similar other schools statewide
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.
Similar enrollment (~417 students)
Similar student-teacher ratio (~12.3:1)
Next steps
Verify locally before acting on Mill Valley Elementary's federal record.
- Compare Mill Valley Elementary against another school. Compare schools
- Muskego-Norway School District'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 Mill Valley Elementary
How many students attend Mill Valley Elementary?
Mill Valley Elementary has 417 students enrolled. It is a public school in Muskego, WI.
What is the student-teacher ratio at Mill Valley Elementary?
The student-teacher ratio at Mill Valley Elementary is 12.3:1, which is 15% lower than the Wisconsin average of 14.4:1 and 22% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Mill Valley Elementary?
9.4% of students at Mill Valley Elementary are eligible for free lunch, compared to the Wisconsin average of 38.5%.
What is the racial and ethnic makeup of Mill Valley Elementary?
The largest demographic group at Mill Valley Elementary is White at 83.5% of enrollment, in Muskego, WI.
What is the Resource Investment Index for Mill Valley Elementary?
Mill Valley Elementary has a Resource Investment Index of 55/100 (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).
How does Mill Valley Elementary rank among public schools in Muskego?
By Resource Investment Index, Mill Valley Elementary ranks #2 of 5 public schools in Muskego, WI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Muskego on the city page.
Is Mill Valley Elementary a good school?
Mill Valley Elementary earns 55/100 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.
What other schools are in Muskego-Norway School District?
Besides Mill Valley Elementary, Muskego-Norway School District also operates Muskego High (1,634 students), Bay Lane Elementary (912 students), and Muskego Lakes Middle (676 students). See the Muskego-Norway School District district page for the complete list.
Related tools
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.