Enrollment
152
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Park Forest, IL
Federal NCES profile for 21st Century Primary Center, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
The verdict
21st Century Primary Center earns 38/100 on the Resource Investment Index, with class sizes smaller than 75% of Illinois schools.
21st Century Primary Center has class sizes smaller than 75% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, 21st Century Primary Center ranks #3 of 6 elementary schools in Park Forest, IL.
NCES ID 173081003429 Verify on NCES CCD record →
Enrollment
152
Illinois · 2024-25 NCES data
Teachers (FTE)
13.0
Federal CCD staff survey
Students per teacher
11.7:1
vs 14:1 Illinois avg
-16% vs state
How 21st Century Primary Center compares with Illinois and U.S. medians
Smaller classes than state median
11.7:1 - 2.3 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
21st Century Primary Center is a small elementary school in Park Forest, Illinois, enrolling 152 students.
Class sizes run a bit leaner than typical: 11.7:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 152 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 African American (76%) and Hispanic or Latino (13%) (diversity index 39/100).
Counselor coverage is strong, about 152 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 50.0% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Park Forest Sd 163 spends $22,969 per pupil, 35% above the Illinois average, a better-resourced district than most.
Its district draws 15.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Among Park Forest's elementary schools, it stands alongside Illinois School (391 students): 21st Century Primary Center is smaller than that campus by headcount and runs heavier classes (11.7:1 vs 11.2:1).
Park Forest Sd 163 also operates Michelle Obama Sch of Technology (428 students) and Barack Obama Sch of Ldership (367 students) alongside 21st Century Primary Center.
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
21st Century Primary Center on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.7:1 | ▼ 16% | 14:1 | 15.7:1 |
| Enrollment | 152 | top 89% | - | - |
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: African American at 76.3% of enrollment.
Simpson diversity index - at 39.0, 21st Century Primary Center is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Park Forest Sd 163, which includes 21st Century Primary Center.
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 |
|---|---|---|---|
| Michelle Obama Sch of Technology | Larger | No free-lunch data | Lower S:T ratio |
| Barack Obama Sch of Ldership | Larger | No free-lunch data | Similar S:T ratio |
| Mohawk Primary Center | Larger | No free-lunch data | Higher S:T ratio |
| Blackhawk Primary Center | Similar size | No free-lunch data | Higher S:T ratio |
| Algonquin Primary Center | Similar size | No free-lunch data | Higher S:T ratio |
Comparisons are relative to 21st Century Primary Center's own figures; each column derives from NCES Common Core of Data.
5 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 21st Century Primary Center'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.
21st Century Primary Center has 152 students enrolled. It is an elementary school in Park Forest, IL.
The student-teacher ratio at 21st Century Primary Center is 11.7:1, which is 16% lower than the Illinois average of 14:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at 21st Century Primary Center is African American at 76.3% of enrollment, in Park Forest, IL.
21st Century Primary Center has a Resource Investment Index of 38/100 (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).
By Resource Investment Index, 21st Century Primary Center ranks #3 of 6 elementary schools in Park Forest, 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 Park Forest on the city page.
21st Century Primary Center earns 38/100 on the Resource Investment Index, with class sizes smaller than 75% 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 21st Century Primary Center, Park Forest Sd 163 also operates Michelle Obama Sch of Technology (428 students), Barack Obama Sch of Ldership (367 students), and Mohawk Primary Center (283 students). See the Park Forest Sd 163 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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Last updated:
PlainSchools, “21st Century Primary Center, Park Forest 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/21st-century-primary-center-il/
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