Enrollment
209
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Rock Falls, IL
Montmorency Ccsd #145
Federal NCES profile for Montmorency Ccsd #145, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
2024-25 NCES dataElementary school (grades K-5)NCES 172659002846
👥 S:T ratio 58
🌟 Gifted program 30
📋 Attendance 30
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Montmorency Ccsd #145 earns 39/100 on the Resource Investment Index, with class sizes smaller than 87% of Illinois schools.
- #2 of 3
- elementary schools in Rock Falls · Resource Index
- 39
- Resource Index · Typical
- 10.4:1
- small classes for Illinois
- 209
- students enrolled
Montmorency Ccsd #145 has class sizes smaller than 87% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Montmorency Ccsd #145 ranks #2 of 3 elementary schools in Rock Falls, IL.
School address
District: Montmorency Ccsd 145 · Illinois
NCES ID 172659002846 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
10.4:1
vs 14:1 Illinois avg
-26% vs state
Student-teacher ratio in context
How Montmorency Ccsd #145 compares with Illinois and U.S. medians
What stands out at Montmorency Ccsd #145
Montmorency Ccsd #145 is a mid-sized elementary school in Rock Falls, Illinois, enrolling 209 students.
Classes run notably small here: at 10.4:1, Montmorency Ccsd #145 is leaner than roughly 87% of Illinois schools and 26% under the state's 14:1 norm, more adult attention per pupil than most peers.
Enrollment of 209 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (79%) and Hispanic or Latino (16%) (diversity index 34/100).
Chronic absenteeism is elevated: 28.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Montmorency Ccsd 145 spends $13,686 per pupil, 20% below the Illinois average, a leaner-resourced district than most.
Among Rock Falls's elementary schools, it stands alongside Dillon Elementary School (278 students): Montmorency Ccsd #145 is smaller than that campus by headcount and runs leaner classes (10.4:1 vs 13.2:1).
Montmorency Ccsd 145 operates only this one school, so Montmorency Ccsd #145 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 Montmorency Ccsd #145 compares
Montmorency Ccsd #145 on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 10.4:1 | ▼ 26% | 14:1 | 15.7:1 |
| Enrollment | 209 | top 81% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
10.4:1
Leaner classes than 87% of US schools, among the more generously staffed nationally.
209
Bigger than 20% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
10.4:1
students per teacher
- 26% below state mean
Top 13% in Illinois - lower ratio than 87% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
28.2%
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
$13,686
per pupil, district-wide
- below Illinois avg of $17,042
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
8
in-school suspensions + 3 out-of-school
Suspension rate: 3.8 per 100 students. Combined in-school and out-of-school rate: 5.3 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 79.4%
Hispanic or Latino 16.3%
Two or More 3.8%
African American 0.5%
Largest group: White at 79.4% of enrollment.
Student-body diversity index 34.2/100
Simpson diversity index - at 34.2, Montmorency Ccsd #145 is less mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Montmorency Ccsd 145, which includes Montmorency Ccsd #145.
$13,686
Per student
-20%
vs Illinois
Avg $17,042
-18%
vs U.S.
Avg $16,593
Revenue mix
Local 46.4%
State 42.8%
Federal 10.8%
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 elementary schools in Rock Falls
2 comparable elementary schools (grades K-5) serving the same city.
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~209 students)
Similar student-teacher ratio (~10.4:1)
Next steps
Verify locally before acting on Montmorency Ccsd #145's federal record.
- Compare Montmorency Ccsd #145 against another school. Compare schools
- Montmorency Ccsd 145'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 Montmorency Ccsd #145
How many students attend Montmorency Ccsd #145?
Montmorency Ccsd #145 has 209 students enrolled. It is an elementary school in Rock Falls, IL.
What is the student-teacher ratio at Montmorency Ccsd #145?
The student-teacher ratio at Montmorency Ccsd #145 is 10.4:1, which is 26% lower than the Illinois average of 14:1 and 34% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Montmorency Ccsd #145?
The largest demographic group at Montmorency Ccsd #145 is White at 79.4% of enrollment, in Rock Falls, IL.
What is the Resource Investment Index for Montmorency Ccsd #145?
Montmorency Ccsd #145 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 Montmorency Ccsd #145 rank among elementary schools in Rock Falls?
By Resource Investment Index, Montmorency Ccsd #145 ranks #2 of 3 elementary schools in Rock Falls, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Rock Falls on the city page.
Is Montmorency Ccsd #145 a good school?
Montmorency Ccsd #145 earns 39/100 on the Resource Investment Index, with class sizes smaller than 87% of Illinois 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 Montmorency Ccsd 145?
None reported; Montmorency Ccsd 145 operates only Montmorency Ccsd #145 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.