Enrollment
290
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Pekin, IL
Federal NCES profile for Jefferson Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 18/100.
The verdict
Jefferson Elem School earns 18/100 on the Resource Investment Index, with class sizes larger than 72% of Illinois schools.
Jefferson Elem School has class sizes larger than 72% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Jefferson Elem School ranks #9 of 9 elementary schools in Pekin, IL.
Enrollment
290
Illinois · 2024-25 NCES data
Teachers (FTE)
19.0
Federal CCD staff survey
Students per teacher
15.3:1
vs 14:1 Illinois avg
+9% vs state
How Jefferson Elem School compares with Illinois and U.S. medians
Slightly above state median
15.3:1 - 1.3 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Jefferson Elem School is a mid-sized elementary school in Pekin, Illinois, enrolling 290 students.
Class loads run somewhat heavier than typical: 15.3:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 290 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index trails 97% of the 3,845 Illinois schools with a score on record, one of the lower results on this measure.
Its student body is predominantly White (87% of enrollment) (diversity index 24/100).
Counselor access is stretched at roughly 580 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 38.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Pekin's elementary schools, it stands alongside Wilson Intermediate School (600 students): Jefferson Elem School is smaller than that campus by headcount and runs heavier classes (15.3:1 vs 15:1).
Pekin Psd 108 also operates Wilson Intermediate School (600 students) and Washington Intermediate School (428 students) alongside Jefferson Elem 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
Jefferson Elem 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 | 15.3:1 | ▲ 9% | 14:1 | 15.7:1 |
| Enrollment | 290 | top 66% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: White at 86.6% of enrollment.
Simpson diversity index - at 24.4, Jefferson Elem School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Pekin Psd 108, which includes Jefferson Elem School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Wilson Intermediate School | Larger | No free-lunch data | Similar S:T ratio |
| Washington Intermediate School | Larger | No free-lunch data | Lower S:T ratio |
| Broadmoor Junior High School | Larger | No free-lunch data | Similar S:T ratio |
| Edison Junior High School | Similar size | No free-lunch data | Lower S:T ratio |
| C B Smith Elem School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Jefferson Elem School's own figures; each column derives from NCES Common Core of Data.
6 comparable elementary schools (grades K-5) serving the same city.
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.
Next steps
Verify locally before acting on Jefferson Elem School's federal record.
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.
Jefferson Elem School has 290 students enrolled. It is an elementary school in Pekin, IL.
The student-teacher ratio at Jefferson Elem School is 15.3:1, which is 9% higher than the Illinois average of 14:1 and 3% lower than the national average of 15.7:1.
The largest demographic group at Jefferson Elem School is White at 86.6% of enrollment, in Pekin, IL.
Jefferson Elem School has a Resource Investment Index of 18/100 (lower 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).
By Resource Investment Index, Jefferson Elem School ranks #9 of 9 elementary schools in Pekin, 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 Pekin on the city page.
Jefferson Elem School earns 18/100 on the Resource Investment Index, with class sizes larger than 72% 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.
Besides Jefferson Elem School, Pekin Psd 108 also operates Wilson Intermediate School (600 students), Washington Intermediate School (428 students), and Broadmoor Junior High School (387 students). See the Pekin Psd 108 district page for the complete list.
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.
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PlainSchools, “Jefferson Elem School, Pekin IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/jefferson-elem-school-il-15/
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