Enrollment
278
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Rock Falls, IL
Dillon Elementary School
Federal NCES profile for Dillon Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 36/100.
2024-25 NCES dataElementary school (grades K-5)NCES 173435003521
👥 S:T ratio 47
🌟 Gifted program 30
🎓 Counselors 44
📋 Attendance 23
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Dillon Elementary School earns 36/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #3 of 3
- elementary schools in Rock Falls · Resource Index
- 36
- Resource Index · Typical
- 13.2:1
- students per teacher
- 278
- students enrolled
Dillon Elementary School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Dillon Elementary School ranks #3 of 3 elementary schools in Rock Falls, IL.
School address
District: Rock Falls Esd 13 · Illinois
NCES ID 173435003521 Verify on NCES CCD record →
Teachers (FTE)
21.0
Federal CCD staff survey
Students per teacher
13.2:1
vs 14:1 Illinois avg
-6% vs state
Student-teacher ratio in context
How Dillon Elementary School compares with Illinois and U.S. medians
What stands out at Dillon Elementary School
Dillon Elementary School is a mid-sized elementary school in Rock Falls, Illinois, enrolling 278 students.
At 13.2:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
Enrollment of 278 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 (60%) and Hispanic or Latino (28%) (diversity index 55/100).
Counselor coverage runs a bit thin, about 278 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 30.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 19.1% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Rock Falls's elementary schools, it stands alongside Merrill Elem School (258 students): Dillon Elementary School is larger than that campus by headcount and runs heavier classes (13.2:1 vs 12.9:1).
Rock Falls Esd 13 also operates Merrill Elem School (258 students) and Rock Falls Middle School (246 students) alongside Dillon Elementary School.
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 Dillon Elementary School compares
Dillon Elementary School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.2:1 | ▼ 6% | 14:1 | 15.7:1 |
| Enrollment | 278 | top 68% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.2:1
Leaner classes than 65% of US schools, a middle-of-the-pack class size.
278
Bigger than 29% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
13.2:1
students per teacher
- 6% below state mean
Top 45% in Illinois - lower ratio than 55% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
30.6%
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
$17,720
per pupil, district-wide
- above Illinois avg of $17,042
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 278 students, the combined health-and-guidance staffing load for this school.
Discipline context
7
in-school suspensions + 4 out-of-school
Suspension rate: 2.5 per 100 students. Combined in-school and out-of-school rate: 4.0 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 60.4%
Hispanic or Latino 27.7%
Two or More 7.2%
African American 4.0%
Asian 0.7%
Largest group: White at 60.4% of enrollment.
Student-body diversity index 55.2/100
Simpson diversity index - at 55.2, Dillon Elementary School is more mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Rock Falls Esd 13, which includes Dillon Elementary School.
$17,720
Per student
+4%
vs Illinois
Avg $17,042
+7%
vs U.S.
Avg $16,593
Revenue mix
Local 22.3%
State 58.6%
Federal 19.1%
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 Dillon Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Merrill Elem School | Similar size | No free-lunch data | Similar S:T ratio |
| Rock Falls Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Riverdale Preschool Center | Smaller | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Dillon Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 258
- Students per teacher
- 12.9:1
- Resource Index
- 42/100
- Enrollment
- 246
- Students per teacher
- 11.7:1
- Resource Index
- 33/100
- Enrollment
- 145
- Students per teacher
- 36.3:1
- Resource Index
- 15/100
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 (~278 students)
Similar student-teacher ratio (~13.2:1)
Next steps
Verify locally before acting on Dillon Elementary School's federal record.
- Compare Dillon Elementary School against another school. Compare schools
- Rock Falls Esd 13'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 Dillon Elementary School
How many students attend Dillon Elementary School?
Dillon Elementary School has 278 students enrolled. It is an elementary school in Rock Falls, IL.
What is the student-teacher ratio at Dillon Elementary School?
The student-teacher ratio at Dillon Elementary School is 13.2:1, which is 6% lower than the Illinois average of 14:1 and 16% 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 Dillon Elementary School?
The largest demographic group at Dillon Elementary School is White at 60.4% of enrollment, in Rock Falls, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.2/100.
What is the Resource Investment Index for Dillon Elementary School?
Dillon Elementary School has a Resource Investment Index of 36/100 (typical 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).
How does Dillon Elementary School rank among elementary schools in Rock Falls?
By Resource Investment Index, Dillon Elementary School ranks #3 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 Dillon Elementary School a good school?
Dillon Elementary School earns 36/100 on the Resource Investment Index, with class sizes near the Illinois 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 Rock Falls Esd 13?
Besides Dillon Elementary School, Rock Falls Esd 13 also operates Merrill Elem School (258 students), Rock Falls Middle School (246 students), and Riverdale Preschool Center (145 students). See the Rock Falls Esd 13 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.