- Enrollment
- 2,229
- Students per teacher
- 17.1:1
- Resource Index
- 40/100
Middle school (grades 6-8) · Marion, IA
Oak Ridge School
Federal NCES profile for Oak Ridge School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 50/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 191722000810
👥 S:T ratio 44
🌟 Gifted program 70
🎓 Counselors 47
📋 Attendance 40
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Oak Ridge School earns 50/100 on the Resource Investment Index, with class sizes near the Iowa median.
- #2 of 15
- public schools in Marion · Resource Index
- 50
- Resource Index · Higher
- 14.1:1
- students per teacher
- 15.6%
- free-lunch eligible
Oak Ridge School has class sizes near the Iowa median. Computed live against every Iowa school reporting to NCES.
By Resource Investment Index, Oak Ridge School ranks #2 of 15 public schools in Marion, IA.
School address
District: Linn-Mar Comm School District · Iowa
NCES ID 191722000810 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+11 students YoY
Oak Ridge School held near 537 students from 2022-23 to 2023-24 (+11 headcount).
Teacher FTE added 38.7 → 39.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+11 students YoY 191722000810 · Marion, IA Middle · MID · TRAD
534 enr · 14.1:1 · 15.6% lunch · RII 50
Nearest enrollment peer: Linn-Mar High School (2,229 students)
Oak Ridge School held near 537 students from 2022-23 to 2023-24 (+11 headcount). Teacher FTE added 38.7 → 39.0 across the same CCD years. Read with this school → · District book → · Iowa schools → · Find another →
Oak Ridge School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Linn-Mar High
Linn-Mar High School
2,229 students
- Boulder Peak I 613
Boulder Peak Intermediate School
613 students
- Excelsior Midd 594
Excelsior Middle School
594 students
- Hazel Point In 563
Hazel Point Intermediate School
563 students
- Echo Hill Elem 536
Echo Hill Elementary
536 students
- This school 534
Oak Ridge School
534 students
What this shows Oak Ridge School reports 534 students on the CCD universe file.
How Oak Ridge School compares
Oak Ridge School held steady on CCD headcount: ratios and free-lunch share vs Iowa and U.S. means.
| Metric | This school | vs Iowa | Iowa avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.1:1 | ▼ 5% | 14.8:1 | 15.7:1 |
| Free-lunch eligible | 15.6% | ▼ 57% | 36.4% | 51.7% |
| Enrollment | 534 | top 17% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.1:1
Leaner classes than 56% of US schools, a middle-of-the-pack class size.
534
Bigger than 66% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
15.6%
free-lunch eligible
- 57% below the Iowa average of 36.4%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
14.1:1
students per teacher
- 5% below state mean
Top 52% in Iowa - lower ratio than 48% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
24.0%
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
$12,833
per pupil, district-wide
- below Iowa avg of $13,441
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 267 students, the combined health-and-guidance staffing load for this school.
Discipline context
17
in-school suspensions + 31 out-of-school
Suspension rate: 3.2 per 100 students. Combined in-school and out-of-school rate: 9.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 68.9%
Asian 14.1%
Hispanic or Latino 6.6%
African American 5.3%
Two or More 5.1%
Native Hawaiian / Pacific Islander 0.2%
Largest group: White at 68.9% of enrollment.
Student-body diversity index 49.6/100
Simpson diversity index - at 49.6, Oak Ridge School is more mixed than the Iowa school average of 33.8.
Programs
Gifted & talented Yes
District finance for Linn-Mar Comm School District reports $12,833 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Oak Ridge School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Linn-Mar High School | Larger | Similar economic need | Higher S:T ratio |
| Boulder Peak Intermediate School | Similar size | Similar economic need | Higher S:T ratio |
| Excelsior Middle School | Similar size | Similar economic need | Similar S:T ratio |
| Hazel Point Intermediate School | Similar size | Similar economic need | Similar S:T ratio |
| Echo Hill Elementary | Similar size | Similar economic need | Higher S:T ratio |
Comparisons are relative to Oak Ridge School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 613
- Students per teacher
- 15.7:1
- Resource Index
- 48/100
- Enrollment
- 594
- Students per teacher
- 12.9:1
- Resource Index
- 46/100
- Enrollment
- 563
- Students per teacher
- 14.8:1
- Resource Index
- 42/100
- Enrollment
- 536
- Students per teacher
- 15.8:1
- Resource Index
- 45/100
Similar middle schools in Marion
1 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~534 students)
Similar student-teacher ratio (~14.1:1)
Frequently asked questions about Oak Ridge School
How many students attend Oak Ridge School?
Oak Ridge School has 534 students enrolled. It is a middle school in Marion, IA. CCD year-over-year: 526 (2022-23) → 537 (2023-24), nearly flat (+11).
What is the student-teacher ratio at Oak Ridge School?
The student-teacher ratio at Oak Ridge School is 14.1:1, which is 5% lower than the Iowa average of 14.8:1 and 10% 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 Oak Ridge School?
15.6% of students at Oak Ridge School are eligible for free lunch, compared to the Iowa average of 36.4%.
What is the racial and ethnic makeup of Oak Ridge School?
The largest demographic group at Oak Ridge School is White at 68.9% of enrollment, in Marion, IA.
What is the Resource Investment Index for Oak Ridge School?
Oak Ridge School has a Resource Investment Index of 50/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Oak Ridge School rank among public schools in Marion?
By Resource Investment Index, Oak Ridge School ranks #2 of 15 public schools in Marion, IA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Marion on the city page.
What other schools are in Linn-Mar Comm School District?
Besides Oak Ridge School, Linn-Mar Comm School District also operates Linn-Mar High School (2,229 students), Boulder Peak Intermediate School (613 students), and Excelsior Middle School (594 students). See the Linn-Mar Comm School District district page for the complete list.