Enrollment
399
Wisconsin · 2024-25 NCES data
Other / mixed grade configuration · Hartford, WI
Erin Elementary
Federal NCES profile for Erin Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
2024-25 NCES dataOther / mixed grade configurationNCES 550441000476
👥 S:T ratio 34
🌟 Gifted program 30
📋 Attendance 53
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Erin Elementary earns 39/100 on the Resource Investment Index, with class sizes larger than 84% of Wisconsin schools.
- #4 of 4
- schools in Hartford · Resource Index
- 39
- Resource Index · Typical
- 16.6:1
- large classes for Wisconsin
- 10.5%
- free-lunch eligible
Erin Elementary has class sizes larger than 84% of Wisconsin schools. Computed live against every Wisconsin school reporting to NCES.
By Resource Investment Index, Erin Elementary ranks #4 of 4 schools in Hartford, WI.
School address
District: Erin School District · Wisconsin
NCES ID 550441000476 Verify on NCES CCD record →
Teachers (FTE)
24.0
Federal CCD staff survey
Students per teacher
16.6:1
vs 14.4:1 Wisconsin avg
+15% vs state
Free-lunch eligible
10.5%
vs 38.5% Wisconsin avg
-73% vs state
Student-teacher ratio in context
How Erin Elementary compares with Wisconsin and U.S. medians
What stands out at Erin Elementary
Erin Elementary is a lower-poverty, mid-sized combined-grade school in Hartford, Wisconsin, enrolling 399 students.
Class loads run somewhat heavier than typical: 16.6:1 puts it in the larger third of Wisconsin schools by student-teacher ratio.
Comparatively few students face economic hardship here, 10.5% free-meal eligibility runs 73% below the Wisconsin average.
Enrollment of 399 puts it in the larger third of Wisconsin schools by headcount.
Its Resource Investment Index lands in the lower third of 2,202 scored Wisconsin schools.
Among 339 similarly sized, similarly resourced-need Wisconsin schools statewide, it ranks #271, in the lower tier once campus size and economic need are matched.
Its student body is predominantly White (94% of enrollment) (diversity index 12/100).
Attendance runs somewhat below the norm, with 19.0% of students chronically absent per the 2021-22 civil-rights collection.
The surrounding Erin School District spends $10,821 per pupil, 27% below the Wisconsin average, a leaner-resourced district than most.
Among Hartford's public schools, it stands alongside Lincoln Elementary (460 students): Erin Elementary is smaller than that campus by headcount and runs heavier classes (16.6:1 vs 12.1:1).
Erin School District operates only this one school, so Erin Elementary has no district-mates to compare against locally.
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 Erin Elementary compares
Erin 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 | 16.6:1 | ▲ 15% | 14.4:1 | 15.7:1 |
| Free-lunch eligible | 10.5% | ▼ 73% | 38.5% | 51.7% |
| Enrollment | 399 | top 33% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.6:1
Leaner classes than 33% of US schools, heavier class loads than most.
399
Bigger than 47% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
10.5%
free-lunch eligible
- 73% 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
16.6:1
students per teacher
- 15% above state mean
Top 84% in Wisconsin - lower ratio than 16% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
19.0%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$10,821
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
2
in-school suspensions + 0 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 0.5 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 93.5%
Hispanic or Latino 4.0%
Two or More 2.3%
African American 0.3%
Largest group: White at 93.5% of enrollment.
Student-body diversity index 12.4/100
Simpson diversity index - at 12.4, Erin Elementary is less mixed than the Wisconsin school average of 35.7.
Programs
Funding & spending
District-wide per-pupil expenditure for Erin School District, which includes Erin Elementary.
$10,821
Per student
-27%
vs Wisconsin
Avg $14,919
-35%
vs U.S.
Avg $16,593
Revenue mix
Local 73.0%
State 17.6%
Federal 9.4%
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.
Similar other schools in Hartford
3 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 (~399 students)
Similar student-teacher ratio (~16.6:1)
Next steps
Verify locally before acting on Erin Elementary's federal record.
- Compare Erin Elementary against another school. Compare schools
- Erin 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 Erin Elementary
How many students attend Erin Elementary?
Erin Elementary has 399 students enrolled. It is a public school in Hartford, WI.
What is the student-teacher ratio at Erin Elementary?
The student-teacher ratio at Erin Elementary is 16.6:1, which is 15% higher than the Wisconsin average of 14.4:1 and 6% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Erin Elementary?
10.5% of students at Erin Elementary are eligible for free lunch, compared to the Wisconsin average of 38.5%.
What is the racial and ethnic makeup of Erin Elementary?
The largest demographic group at Erin Elementary is White at 93.5% of enrollment, in Hartford, WI.
What is the Resource Investment Index for Erin Elementary?
Erin Elementary has a Resource Investment Index of 39/100 (typical 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 Erin Elementary rank among schools in Hartford?
By Resource Investment Index, Erin Elementary ranks #4 of 4 schools in Hartford, WI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Hartford on the city page.
Is Erin Elementary a good school?
Erin Elementary earns 39/100 on the Resource Investment Index, with class sizes larger than 84% 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.
What other schools are in Erin School District?
None reported; Erin School District operates only Erin Elementary as a public school district in NCES's records.
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.