Enrollment
445
Missouri · 2024-25 NCES data
Elementary school (grades K-5) · O'fallon, MO
Dardenne Elem.
Federal NCES profile for Dardenne Elem., including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
2024-25 NCES dataElementary school (grades K-5)NCES 290837002492
👥 S:T ratio 56
🌟 Gifted program 70
🎓 Counselors 11
📋 Attendance 51
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Dardenne Elem. earns 47/100 on the Resource Investment Index, with class sizes smaller than 71% of Missouri schools. It is also more racially and ethnically mixed than most Missouri schools.
- #9 of 12
- elementary schools in O'fallon · Resource Index
- 47
- Resource Index · Typical
- 11.1:1
- small classes for Missouri
- 39.1%
- free-lunch eligible
Dardenne Elem. has class sizes smaller than 71% of Missouri schools. Computed live against every Missouri school reporting to NCES.
By Resource Investment Index, Dardenne Elem. ranks #9 of 12 elementary schools in O'fallon, MO.
School address
District: Ft. Zumwalt R-Ii · Missouri
NCES ID 290837002492 Verify on NCES CCD record →
Teachers (FTE)
40.0
Federal CCD staff survey
Students per teacher
11.1:1
vs 12.8:1 Missouri avg
-13% vs state
Free-lunch eligible
39.1%
vs 46.1% Missouri avg
-15% vs state
Student-teacher ratio in context
How Dardenne Elem. compares with Missouri and U.S. medians
What stands out at Dardenne Elem.
Dardenne Elem. is a mid-sized elementary school in O'fallon, Missouri, enrolling 445 students.
Class sizes run a bit leaner than typical: 11.1:1 puts it in the smaller third of Missouri schools by student-teacher ratio.
Its free-meal eligibility rate of 39.1% lands close to the Missouri typical range, neither a high- nor low-need campus by this measure.
Enrollment of 445 puts it in the larger third of Missouri schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 2,313 scored Missouri schools.
Against 514 statewide peers matched on enrollment and economic need, it ranks mid-pack at #265.
Its student body is led by White (59%) and Hispanic or Latino (22%), more mixed than most schools in the state (diversity index 60/100).
Counselor access is stretched at roughly 445 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 19.6% of students chronically absent per the 2021-22 civil-rights collection.
Ft. Zumwalt R-Ii also operates Ft. Zumwalt West High (1,643 students) and Ft. Zumwalt North High (1,538 students) alongside Dardenne Elem..
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 Dardenne Elem. compares
Dardenne Elem. on the metrics families compare, against Missouri and U.S. means.
| Metric | This school | vs Missouri | Missouri avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.1:1 | ▼ 13% | 12.8:1 | 15.7:1 |
| Free-lunch eligible | 39.1% | ▼ 15% | 46.1% | 51.7% |
| Enrollment | 445 | top 27% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.1:1
Leaner classes than 82% of US schools, among the more generously staffed nationally.
445
Bigger than 54% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
39.1%
free-lunch eligible
- 15% below the Missouri average of 46.1%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11.1:1
students per teacher
- 13% below state mean
Top 29% in Missouri - lower ratio than 71% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
19.6%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$12,920
per pupil, district-wide
- below Missouri avg of $12,931
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 445 students, the combined health-and-guidance staffing load for this school.
Discipline context
23
in-school suspensions + 8 out-of-school
Suspension rate: 5.2 per 100 students. Combined in-school and out-of-school rate: 7.0 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 58.7%
Hispanic or Latino 21.8%
Two or More 8.5%
African American 4.9%
Asian 4.3%
Native Hawaiian / Pacific Islander 1.8%
Largest group: White at 58.7% of enrollment.
Student-body diversity index 59.6/100
Simpson diversity index - at 59.6, Dardenne Elem. is more mixed than the Missouri school average of 31.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Ft. Zumwalt R-Ii, which includes Dardenne Elem..
$12,920
Per student
0%
vs Missouri
Avg $12,931
-22%
vs U.S.
Avg $16,593
Revenue mix
Local 65.1%
State 26.3%
Federal 8.6%
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 Dardenne Elem. Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Ft. Zumwalt West High | Larger | Lower economic need | Higher S:T ratio |
| Ft. Zumwalt North High | Larger | Lower economic need | Higher S:T ratio |
| Ft. Zumwalt South High | Larger | Lower economic need | Higher S:T ratio |
| Ft. Zumwalt East High | Larger | Lower economic need | Higher S:T ratio |
| Ft. Zuwmalt West Middle | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Dardenne Elem.'s own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,643
- Students per teacher
- 13.6:1
- Resource Index
- 41/100
- Enrollment
- 1,538
- Students per teacher
- 14.1:1
- Resource Index
- 35/100
- Enrollment
- 1,212
- Students per teacher
- 12.9:1
- Resource Index
- 42/100
- Enrollment
- 1,171
- Students per teacher
- 13.2:1
- Resource Index
- 38/100
- Enrollment
- 1,114
- Students per teacher
- 12:1
- Resource Index
- 52/100
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of Missouri, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~445 students)
Similar student-teacher ratio (~11.1:1)
Next steps
Verify locally before acting on Dardenne Elem.'s federal record.
- Compare Dardenne Elem. against another school. Compare schools
- Ft. Zumwalt R-Ii'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 Dardenne Elem.
How many students attend Dardenne Elem.?
Dardenne Elem. has 445 students enrolled. It is an elementary school in O'fallon, MO.
What is the student-teacher ratio at Dardenne Elem.?
The student-teacher ratio at Dardenne Elem. is 11.1:1, which is 13% lower than the Missouri average of 12.8:1 and 29% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Dardenne Elem.?
39.1% of students at Dardenne Elem. are eligible for free lunch, compared to the Missouri average of 46.1%.
What is the racial and ethnic makeup of Dardenne Elem.?
The largest demographic group at Dardenne Elem. is White at 58.7% of enrollment, in O'fallon, MO. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 59.6/100.
What is the Resource Investment Index for Dardenne Elem.?
Dardenne Elem. has a Resource Investment Index of 47/100 (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 Dardenne Elem. rank among elementary schools in O'fallon?
By Resource Investment Index, Dardenne Elem. ranks #9 of 12 elementary schools in O'fallon, MO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in O'fallon on the city page.
Is Dardenne Elem. a good school?
Dardenne Elem. earns 47/100 on the Resource Investment Index, with class sizes smaller than 71% of Missouri schools. It is also more racially and ethnically mixed than most Missouri 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.
What other schools are in Ft. Zumwalt R-Ii?
Besides Dardenne Elem., Ft. Zumwalt R-Ii also operates Ft. Zumwalt West High (1,643 students), Ft. Zumwalt North High (1,538 students), and Ft. Zumwalt South High (1,212 students). See the Ft. Zumwalt R-Ii 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.