Enrollment
266
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Richton Park, IL
Neil Armstrong Elem School
Federal NCES profile for Neil Armstrong Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataElementary school (grades K-5)NCES 173630003751
👥 S:T ratio 47
🌟 Gifted program 70
📋 Attendance 32
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Neil Armstrong Elem School earns 49/100 on the Resource Investment Index, with class sizes near the Illinois median.
- #2 of 4
- public schools in Richton Park · Resource Index
- 49
- Resource Index · Higher
- 13.3:1
- students per teacher
- 266
- students enrolled
Neil Armstrong Elem School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Neil Armstrong Elem School ranks #2 of 4 public schools in Richton Park, IL.
School address
NCES ID 173630003751 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
13.3:1
vs 14:1 Illinois avg
-5% vs state
Student-teacher ratio in context
How Neil Armstrong Elem School compares with Illinois and U.S. medians
What stands out at Neil Armstrong Elem School
Neil Armstrong Elem School is a mid-sized elementary school in Richton Park, Illinois, enrolling 266 students.
At 13.3:1, 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 266 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.
Its student body is predominantly African American (87% of enrollment) (diversity index 24/100).
Chronic absenteeism is elevated: 27.4% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Esd 159 spends $21,734 per pupil, 28% above the Illinois average, a better-resourced district than most.
Among Richton Park's elementary schools, it stands alongside Sauk Elem School (281 students): Neil Armstrong Elem School is smaller than that campus by headcount and runs heavier classes (13.3:1 vs 12.8:1).
Esd 159 also operates Colin Powell Middle Sch (564 students) and Marya Yates Elementary School (284 students) alongside Neil Armstrong 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
How Neil Armstrong Elem School compares
Neil Armstrong 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 | 13.3:1 | ▼ 5% | 14:1 | 15.7:1 |
| Enrollment | 266 | top 70% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.3:1
Leaner classes than 64% of US schools, a middle-of-the-pack class size.
266
Bigger than 28% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Staffing depth
13.3:1
students per teacher
- 5% below state mean
Top 46% in Illinois - lower ratio than 54% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
27.4%
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
$21,734
per pupil, district-wide
- above Illinois avg of $17,042
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.4 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
African American 86.5%
Hispanic or Latino 7.9%
Two or More 4.5%
White 0.8%
American Indian / Alaska Native 0.4%
Largest group: African American at 86.5% of enrollment.
Student-body diversity index 24.3/100
Simpson diversity index - at 24.3, Neil Armstrong Elem School is less mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Esd 159, which includes Neil Armstrong Elem School.
$21,734
Per student
+28%
vs Illinois
Avg $17,042
+31%
vs U.S.
Avg $16,593
Revenue mix
Local 61.8%
State 28.2%
Federal 10.0%
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 Neil Armstrong Elem School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Colin Powell Middle Sch | Larger | No free-lunch data | Similar S:T ratio |
| Marya Yates Elementary School | Similar size | No free-lunch data | Similar S:T ratio |
| Sieden Prairie Elementary School | Similar size | No free-lunch data | Higher S:T ratio |
| Woodgate Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Neil Armstrong Elem School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 564
- Students per teacher
- 13.8:1
- Resource Index
- 31/100
- Enrollment
- 284
- Students per teacher
- 13.5:1
- Resource Index
- 35/100
- Enrollment
- 279
- Students per teacher
- 16.4:1
- Resource Index
- 34/100
- Enrollment
- 260
- Students per teacher
- 14.4:1
- Resource Index
- 36/100
Similar elementary schools in Richton Park
1 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 (~266 students)
Similar student-teacher ratio (~13.3:1)
Next steps
Verify locally before acting on Neil Armstrong Elem School's federal record.
- Compare Neil Armstrong Elem School against another school. Compare schools
- Esd 159'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 Neil Armstrong Elem School
How many students attend Neil Armstrong Elem School?
Neil Armstrong Elem School has 266 students enrolled. It is an elementary school in Richton Park, IL.
What is the student-teacher ratio at Neil Armstrong Elem School?
The student-teacher ratio at Neil Armstrong Elem School is 13.3:1, which is 5% lower than the Illinois average of 14:1 and 15% 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 Neil Armstrong Elem School?
The largest demographic group at Neil Armstrong Elem School is African American at 86.5% of enrollment, in Richton Park, IL.
What is the Resource Investment Index for Neil Armstrong Elem School?
Neil Armstrong Elem School has a Resource Investment Index of 49/100 (higher 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 Neil Armstrong Elem School rank among public schools in Richton Park?
By Resource Investment Index, Neil Armstrong Elem School ranks #2 of 4 public schools in Richton Park, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Richton Park on the city page.
Is Neil Armstrong Elem School a good school?
Neil Armstrong Elem School earns 49/100 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 Esd 159?
Besides Neil Armstrong Elem School, Esd 159 also operates Colin Powell Middle Sch (564 students), Marya Yates Elementary School (284 students), and Sieden Prairie Elementary School (279 students). See the Esd 159 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.