Enrollment
160
Michigan · 2024-25 NCES data
Other / mixed grade configuration · Greenville, MI
Flat River Academy
Federal NCES profile for Flat River Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 26/100.
2024-25 NCES dataOther / mixed grade configurationNCES 260014501652Charter school
👥 S:T ratio 47
🌟 Gifted program 30
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Flat River Academy earns 26/100 on the Resource Investment Index, even as it posts class sizes smaller than 82% of Michigan schools.
- #5 of 7
- schools in Greenville · Resource Index
- 26
- Resource Index · Lower
- 13.3:1
- small classes for Michigan
- 74.4%
- free-lunch eligible
Flat River Academy has class sizes smaller than 82% of Michigan schools. Computed live against every Michigan school reporting to NCES.
By Resource Investment Index, Flat River Academy ranks #5 of 7 schools in Greenville, MI.
School address
District: Flat River Academy · Michigan
NCES ID 260014501652 Verify on NCES CCD record →
Teachers (FTE)
12.0
Federal CCD staff survey
Students per teacher
13.3:1
vs 17.5:1 Michigan avg
-24% vs state
Free-lunch eligible
74.4%
vs 54.3% Michigan avg
+37% vs state
Student-teacher ratio in context
How Flat River Academy compares with Michigan and U.S. medians
What stands out at Flat River Academy
Flat River Academy is a higher-need, mid-sized charter combined-grade school in Greenville, Michigan, enrolling 160 students.
Class sizes run a bit leaner than typical: 13.3:1 puts it in the smaller third of Michigan schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 74.4% of students eligible for free meals.
Enrollment of 160 puts it in the smaller third of Michigan schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,375 scored Michigan schools.
Against 226 statewide peers matched on enrollment and economic need, it ranks mid-pack at #138.
Its student body is predominantly White (88% of enrollment) (diversity index 22/100).
Chronic absenteeism is elevated: 40.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 23.3% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Greenville's public schools, it stands alongside Isdlocal Center Programs (50 students): Flat River Academy is larger than that campus by headcount and runs heavier classes (13.3:1 vs 2:1).
Flat River Academy is a single-school charter district, so Flat River Academy operates independently rather than alongside district-mates.
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 Flat River Academy compares
Flat River Academy on the metrics families compare, against Michigan and U.S. means.
| Metric | This school | vs Michigan | Michigan avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.3:1 | ▼ 24% | 17.5:1 | 15.7:1 |
| Free-lunch eligible | 74.4% | ▲ 37% | 54.3% | 51.7% |
| Enrollment | 160 | top 80% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.3:1
Leaner classes than 64% of US schools, a middle-of-the-pack class size.
160
Bigger than 16% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Economic need
74.4%
free-lunch eligible
- 37% above the Michigan average of 54.3%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
13.3:1
students per teacher
- 24% below state mean
Top 18% in Michigan - lower ratio than 82% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
40.0%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$12,144
per pupil, district-wide
- below Michigan avg of $13,507
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 + 19 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 11.9 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 88.1%
Hispanic or Latino 5.6%
Two or More 5.0%
African American 1.3%
Largest group: White at 88.1% of enrollment.
Student-body diversity index 21.8/100
Simpson diversity index - at 21.8, Flat River Academy is less mixed than the Michigan school average of 36.2.
Programs
Funding & spending
District-wide per-pupil expenditure for Flat River Academy, which includes Flat River Academy.
$12,144
Per student
-10%
vs Michigan
Avg $13,507
-27%
vs U.S.
Avg $16,593
Revenue mix
Local 13.7%
State 63.0%
Federal 23.3%
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 Greenville
2 comparable other schools (grades Mixed) serving the same city.
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Michigan, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~160 students)
Next steps
Verify locally before acting on Flat River Academy's federal record.
- Compare Flat River Academy against another school. Compare schools
- Flat River Academy'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 Flat River Academy
How many students attend Flat River Academy?
Flat River Academy has 160 students enrolled. It is a public school in Greenville, MI.
What is the student-teacher ratio at Flat River Academy?
The student-teacher ratio at Flat River Academy is 13.3:1, which is 24% lower than the Michigan average of 17.5:1 and 15% 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 Flat River Academy?
74.4% of students at Flat River Academy are eligible for free lunch, compared to the Michigan average of 54.3%.
What is the racial and ethnic makeup of Flat River Academy?
The largest demographic group at Flat River Academy is White at 88.1% of enrollment, in Greenville, MI.
What is the Resource Investment Index for Flat River Academy?
Flat River Academy has a Resource Investment Index of 26/100 (lower 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 Flat River Academy rank among schools in Greenville?
By Resource Investment Index, Flat River Academy ranks #5 of 7 schools in Greenville, MI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Greenville on the city page.
Is Flat River Academy a good school?
Flat River Academy earns 26/100 on the Resource Investment Index, even as it posts class sizes smaller than 82% of Michigan 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 Flat River Academy?
None; Flat River Academy is a single-school charter district, and Flat River Academy is its only campus.
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.