Enrollment
185
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Ullin, IL
Century Elementary School
Federal NCES profile for Century Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataOther / mixed grade configurationNCES 173963004861
👥 S:T ratio 51
🌟 Gifted program 30
📋 Attendance 31
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Century Elementary School earns 37/100 on the Resource Investment Index, with class sizes near the Illinois median.
- 37
- Resource Index · Typical
- 12.3:1
- students per teacher
- 185
- students enrolled
Century Elementary School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
School address
District: Century Cusd 100 · Illinois
NCES ID 173963004861 Verify on NCES CCD record →
Teachers (FTE)
15.0
Federal CCD staff survey
Students per teacher
12.3:1
vs 14:1 Illinois avg
-12% vs state
Student-teacher ratio in context
How Century Elementary School compares with Illinois and U.S. medians
What stands out at Century Elementary School
Century Elementary School is a mid-sized combined-grade school in Ullin, Illinois, enrolling 185 students.
Class sizes run a bit leaner than typical: 12.3:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 185 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 predominantly White (81% of enrollment) (diversity index 32/100).
Chronic absenteeism is elevated: 27.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 27.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Ullin's public schools, it stands alongside Century Jr/Sr High School (146 students): Century Elementary School is larger than that campus by headcount and runs heavier classes (12.3:1 vs 9.7:1).
Its district, Century Cusd 100, also runs Century Jr/Sr High School (146 students).
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 Century Elementary School compares
Century 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 | 12.3:1 | ▼ 12% | 14:1 | 15.7:1 |
| Enrollment | 185 | top 84% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.3:1
Leaner classes than 73% of US schools, among the more generously staffed nationally.
185
Bigger than 18% of US schools by enrollment, a small campus.
Equity indicators (what these measure)
Staffing depth
12.3:1
students per teacher
- 12% below state mean
Top 33% in Illinois - lower ratio than 67% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
27.6%
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
$14,870
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
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 81.1%
African American 12.4%
Two or More 5.4%
Hispanic or Latino 1.1%
Largest group: White at 81.1% of enrollment.
Student-body diversity index 32.4/100
Simpson diversity index - at 32.4, Century Elementary School is less mixed than the Illinois school average of 38.9.
Programs
Funding & spending
District-wide per-pupil expenditure for Century Cusd 100, which includes Century Elementary School.
$14,870
Per student
-13%
vs Illinois
Avg $17,042
-10%
vs U.S.
Avg $16,593
Revenue mix
Local 17.2%
State 55.3%
Federal 27.5%
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 Century Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Century Jr/Sr High School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Century Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 146
- Students per teacher
- 9.7:1
- Resource Index
- 41/100
Similar other schools in Ullin
1 comparable other schools (grades Mixed) serving the same city.
Similar other 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 (~185 students)
Next steps
Verify locally before acting on Century Elementary School's federal record.
- Compare Century Elementary School against another school. Compare schools
- Century Cusd 100'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 Century Elementary School
How many students attend Century Elementary School?
Century Elementary School has 185 students enrolled. It is a public school in Ullin, IL.
What is the student-teacher ratio at Century Elementary School?
The student-teacher ratio at Century Elementary School is 12.3:1, which is 12% lower than the Illinois average of 14:1 and 22% 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 Century Elementary School?
The largest demographic group at Century Elementary School is White at 81.1% of enrollment, in Ullin, IL.
What is the Resource Investment Index for Century Elementary School?
Century Elementary School has a Resource Investment Index of 37/100 (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).
Is Century Elementary School a good school?
Century Elementary School earns 37/100 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 Century Cusd 100?
Besides Century Elementary School, Century Cusd 100 also operates Century Jr/Sr High School (146 students). See the Century Cusd 100 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.