Enrollment
956
Minnesota · 2024-25 NCES data
Middle school (grades 6-8) · Cottage Grove, MN
Federal NCES profile for Oltman Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
The verdict
Oltman Middle School earns 32/100 on the Resource Investment Index, with class sizes larger than 97% of Minnesota schools. It is also more racially and ethnically mixed than most Minnesota schools.
Oltman Middle School has class sizes larger than 97% of Minnesota schools. Computed live against every Minnesota school reporting to NCES.
By Resource Investment Index, Oltman Middle School ranks #9 of 13 public schools in Cottage Grove, MN.
NCES ID 273381001542 Verify on NCES CCD record →
Enrollment
956
Minnesota · 2024-25 NCES data
Teachers (FTE)
25.0
Federal CCD staff survey
Students per teacher
38.2:1
vs 15.8:1 Minnesota avg
+142% vs state
Free-lunch eligible
27.9%
vs 42.8% Minnesota avg
-35% vs state
How Oltman Middle School compares with Minnesota and U.S. medians
Larger classes than state median
38.2:1 - 22.4 above the Minnesota state median of 15.8:1, indicating larger average class loads than typical schools in the state.
Oltman Middle School is a large middle school in Cottage Grove, Minnesota, enrolling 956 students.
Class loads run heavy: 38.2:1 is larger than about 97% of Minnesota schools and 142% above the 15.8:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 27.9% of students eligible for free meals.
By headcount it is one of the larger campuses in Minnesota, bigger than 94% of state schools at 956 students.
Its Resource Investment Index lands in the lower third of 2,334 scored Minnesota schools.
Against 259 statewide peers matched on enrollment and economic need, it ranks mid-pack at #164.
Its student body is led by White (57%) and Asian (14%), more mixed than most schools in the state (diversity index 63/100).
Counselor access is stretched at roughly 478 students per counselor, well above the ASCA-recommended 250:1 ceiling.
17.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
South Washington County Schools also operates East Ridge High School (2,072 students) and Park High School (1,992 students) alongside Oltman Middle 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
Oltman Middle School on the metrics families compare, against Minnesota and U.S. means.
| Metric | This school | vs Minnesota | Minnesota avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 38.2:1 | ▲ 142% | 15.8:1 | 15.7:1 |
| Free-lunch eligible | 27.9% | ▼ 35% | 42.8% | 51.7% |
| Enrollment | 956 | top 6% | - | - |
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: White at 56.7% of enrollment.
Simpson diversity index - at 63.1, Oltman Middle School is more mixed than the Minnesota school average of 42.8.
District-wide per-pupil expenditure for South Washington County Schools, which includes Oltman Middle School.
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 |
|---|---|---|---|
| East Ridge High School | Larger | Lower economic need | Higher S:T ratio |
| Park High School | Larger | Similar economic need | Lower S:T ratio |
| Woodbury High School | Larger | Lower economic need | Higher S:T ratio |
| Lake Middle School | Similar size | Lower economic need | Higher S:T ratio |
| Woodbury Middle School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Oltman Middle School's own figures; each column derives from NCES Common Core of Data.
Matched by enrollment size and by staffing ratio across all of Minnesota, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Oltman Middle School'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.
Oltman Middle School has 956 students enrolled. It is a middle school in Cottage Grove, MN.
The student-teacher ratio at Oltman Middle School is 38.2:1, which is 142% higher than the Minnesota average of 15.8:1 and 143% higher than the national average of 15.7:1.
27.9% of students at Oltman Middle School are eligible for free lunch, compared to the Minnesota average of 42.8%.
The largest demographic group at Oltman Middle School is White at 56.7% of enrollment, in Cottage Grove, MN. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.1/100.
Oltman Middle School has a Resource Investment Index of 32/100 (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, Oltman Middle School ranks #9 of 13 public schools in Cottage Grove, MN. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Cottage Grove on the city page.
Oltman Middle School earns 32/100 on the Resource Investment Index, with class sizes larger than 97% of Minnesota schools. It is also more racially and ethnically mixed than most Minnesota 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 Oltman Middle School, South Washington County Schools also operates East Ridge High School (2,072 students), Park High School (1,992 students), and Woodbury High School (1,943 students). See the South Washington County Schools 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Oltman Middle School, Cottage Grove MN.” 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/oltman-middle-school-mn
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.