Enrollment
1,413
Maryland · 2024-25 NCES data
High school (grades 9-12) · Columbia, MD
Oakland Mills High
Federal NCES profile for Oakland Mills High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 240042000745
👥 S:T ratio 44
📚 AP courses 100
🌟 Gifted program 70
🎓 Counselors 43
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Oakland Mills High earns 52/100 on the Resource Investment Index, with class sizes near the Maryland median.
- #5 of 5
- high schools in Columbia · Resource Index
- 52
- Resource Index · Higher
- 13.9:1
- students per teacher
- 39.4%
- free-lunch eligible
Oakland Mills High has class sizes near the Maryland median. Computed live against every Maryland school reporting to NCES.
By Resource Investment Index, Oakland Mills High ranks #5 of 5 high schools in Columbia, MD.
School address
District: Howard County Public Schools · Maryland
NCES ID 240042000745 Verify on NCES CCD record →
Teachers (FTE)
102.0
Federal CCD staff survey
Students per teacher
13.9:1
vs 14.5:1 Maryland avg
-4% vs state
Free-lunch eligible
39.4%
vs 49.0% Maryland avg
-20% vs state
Student-teacher ratio in context
How Oakland Mills High compares with Maryland and U.S. medians
What stands out at Oakland Mills High
Oakland Mills High is a large high school in Columbia, Maryland, enrolling 1,413 students.
At 13.9:1, its student-teacher ratio sits close to the Maryland median, within a few percentage points of the 14.5:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat below the state's typical profile, with 39.4% of students eligible for free meals.
By headcount it is one of the larger campuses in Maryland, bigger than 94% of state schools at 1,413 students.
Its Resource Investment Index lands in the lower third of 1,382 scored Maryland schools.
Against 97 statewide peers matched on enrollment and economic need, it ranks mid-pack at #57.
Its student body is led by African American (45%) and Hispanic or Latino (22%) (diversity index 71/100).
On the academic-pipeline side it reports 29 Advanced Placement courses.
Counselor coverage runs a bit thin, about 283 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 40.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Among Columbia's high schools, it stands alongside Atholton High (1,540 students): Oakland Mills High is smaller than that campus by headcount and runs leaner classes (13.9:1 vs 16.4:1).
Howard County Public Schools also operates Marriotts Ridge High (1,741 students) and Reservoir High (1,597 students) alongside Oakland Mills High.
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 Oakland Mills High compares
Oakland Mills High on the metrics families compare, against Maryland and U.S. means.
| Metric | This school | vs Maryland | Maryland avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.9:1 | ▼ 4% | 14.5:1 | 15.7:1 |
| Free-lunch eligible | 39.4% | ▼ 20% | 49.0% | 51.7% |
| Enrollment | 1,413 | top 6% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.9:1
Leaner classes than 58% of US schools, a middle-of-the-pack class size.
1,413
Bigger than 96% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
39.4%
free-lunch eligible
- 20% below the Maryland average of 49.0%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
13.9:1
students per teacher
- 4% below state mean
Top 42% in Maryland - lower ratio than 58% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
40.2%
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
$17,971
per pupil, district-wide
- below Maryland avg of $20,446
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors5.0 FTE
Per 283 students, the combined health-and-guidance staffing load for this school.
Discipline context
1
in-school suspensions + 40 out-of-school
Suspension rate: 0.1 per 100 students. Combined in-school and out-of-school rate: 2.9 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 44.7%
Hispanic or Latino 22.3%
White 16.1%
Asian 8.5%
Two or More 8.0%
American Indian / Alaska Native 0.3%
Native Hawaiian / Pacific Islander 0.1%
Largest group: African American at 44.7% of enrollment.
Student-body diversity index 71.1/100
Simpson diversity index - at 71.1, Oakland Mills High is more mixed than the Maryland school average of 52.3.
Programs
AP courses offered 29
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Howard County Public Schools, which includes Oakland Mills High.
$17,971
Per student
-12%
vs Maryland
Avg $20,446
+8%
vs U.S.
Avg $16,593
Revenue mix
Local 62.7%
State 29.5%
Federal 7.7%
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 Oakland Mills High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Marriotts Ridge High | Similar size | Lower economic need | Higher S:T ratio |
| Reservoir High | Similar size | Lower economic need | Similar S:T ratio |
| Atholton High | Similar size | Lower economic need | Higher S:T ratio |
| Howard High | Similar size | Lower economic need | Similar S:T ratio |
| Mount Hebron High | Similar size | Lower economic need | Similar S:T ratio |
Comparisons are relative to Oakland Mills High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,741
- Students per teacher
- 17.2:1
- Resource Index
- 52/100
- Enrollment
- 1,597
- Students per teacher
- 13.2:1
- Resource Index
- 49/100
- Enrollment
- 1,540
- Students per teacher
- 16.4:1
- Resource Index
- 46/100
- Enrollment
- 1,493
- Students per teacher
- 13.5:1
- Resource Index
- 52/100
- Enrollment
- 1,455
- Students per teacher
- 13.7:1
- Resource Index
- 50/100
Similar high schools in Columbia
4 comparable high schools (grades 9-12) serving the same city.
Atholton High
Standard public school
1,540 students 16.4:1 students per teacher
Long Reach High
Standard public school
1,334 students 10.7:1 students per teacher
Wilde Lake High
Standard public school
1,197 students 12.2:1 students per teacher
Hammond High
Standard public school
1,159 students 12.5:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Maryland, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,413 students)
Similar student-teacher ratio (~13.9:1)
Next steps
Verify locally before acting on Oakland Mills High's federal record.
- Compare Oakland Mills High against another school. Compare schools
- Howard County Public Schools'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 Oakland Mills High
How many students attend Oakland Mills High?
Oakland Mills High has 1,413 students enrolled. It is a high school in Columbia, MD.
What is the student-teacher ratio at Oakland Mills High?
The student-teacher ratio at Oakland Mills High is 13.9:1, which is 4% lower than the Maryland average of 14.5:1 and 11% 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 Oakland Mills High?
39.4% of students at Oakland Mills High are eligible for free lunch, compared to the Maryland average of 49.0%.
What is the racial and ethnic makeup of Oakland Mills High?
The largest demographic group at Oakland Mills High is African American at 44.7% of enrollment, in Columbia, MD. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 71.1/100.
What is the Resource Investment Index for Oakland Mills High?
Oakland Mills High has a Resource Investment Index of 52/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Oakland Mills High rank among high schools in Columbia?
By Resource Investment Index, Oakland Mills High ranks #5 of 5 high schools in Columbia, MD. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Columbia on the city page.
Is Oakland Mills High a good school?
Oakland Mills High earns 52/100 on the Resource Investment Index, with class sizes near the Maryland 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 Howard County Public Schools?
Besides Oakland Mills High, Howard County Public Schools also operates Marriotts Ridge High (1,741 students), Reservoir High (1,597 students), and Atholton High (1,540 students). See the Howard County Public Schools 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.