- Enrollment
- 2,650
- Students per teacher
- 23.2:1
- Resource Index
- 43/100
High school (grades 9-12) · Elk Grove, CA
Cosumnes Oaks High
Federal NCES profile for Cosumnes Oaks High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 38/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 061233012274
👥 S:T ratio 13
🌟 Gifted program 70
🎓 Counselors 25
📋 Attendance 42
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Cosumnes Oaks High earns 38/100 on the Resource Investment Index, with class sizes near the California median. It is also one of the largest schools in California.
- #4 of 6
- high schools in Elk Grove · Resource Index
- 38
- Resource Index · Typical
- 21.7:1
- students per teacher
- 26.6%
- free-lunch eligible
Cosumnes Oaks High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Cosumnes Oaks High ranks #4 of 6 high schools in Elk Grove, CA.
School address
District: Elk Grove Unified · California
NCES ID 061233012274 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-61 students YoY
Cosumnes Oaks High held near 2,151 students from 2022-23 to 2023-24 (-61 headcount).
Teacher FTE held 97.2 → 97.2 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-61 students YoY 061233012274 · Elk Grove, CA High · LARGE · TRAD
2,109 enr · 21.7:1 · 26.6% lunch · RII 38
Nearest enrollment peer: Franklin High (2,650 students)
Cosumnes Oaks High held near 2,151 students from 2022-23 to 2023-24 (-61 headcount). Teacher FTE held 97.2 → 97.2 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Cosumnes Oaks High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Franklin High
Franklin High
2,650 students
- Pleasant Grove
Pleasant Grove High
2,536 students
- Sheldon High
Sheldon High
2,368 students
- Monterey Trail
Monterey Trail High
2,263 students
- Laguna Creek H
Laguna Creek High
2,142 students
- This school
Cosumnes Oaks High
2,109 students
What this shows Cosumnes Oaks High reports 2,109 students on the CCD universe file.
How Cosumnes Oaks High compares
Cosumnes Oaks High held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.7:1 | ▲ 1% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 26.6% | ▼ 52% | 55.5% | 51.7% |
| Enrollment | 2,109 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.7:1
Leaner classes than 11% of US schools, heavier class loads than most.
2,109
Bigger than 98% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
26.6%
free-lunch eligible
- 52% below the California average of 55.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
21.7:1
students per teacher
- 1% above state mean
Top 50% in California - lower ratio than 50% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
23.1%
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
$15,921
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors5.7 FTE
Per 373 students, the combined health-and-guidance staffing load for this school.
Discipline context
11
in-school suspensions + 85 out-of-school
Suspension rate: 0.5 per 100 students. Combined in-school and out-of-school rate: 4.6 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Asian 43.1%
Hispanic or Latino 19.9%
White 13.7%
African American 11.7%
Two or More 10.6%
Native Hawaiian / Pacific Islander 0.7%
American Indian / Alaska Native 0.3%
Largest group: Asian at 43.1% of enrollment.
Student-body diversity index 73.1/100
Simpson diversity index - at 73.1, Cosumnes Oaks High is more mixed than the California school average of 46.0.
Programs
AP courses offered 20
Gifted & talented Yes
District finance for Elk Grove Unified reports $15,921 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Cosumnes Oaks High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Franklin High | Larger | Similar economic need | Higher S:T ratio |
| Pleasant Grove High | Similar size | Similar economic need | Similar S:T ratio |
| Sheldon High | Similar size | Higher economic need | Similar S:T ratio |
| Monterey Trail High | Similar size | Higher economic need | Similar S:T ratio |
| Laguna Creek High | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Cosumnes Oaks High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,536
- Students per teacher
- 22.6:1
- Resource Index
- 40/100
- Enrollment
- 2,368
- Students per teacher
- 21.7:1
- Resource Index
- 39/100
- Enrollment
- 2,263
- Students per teacher
- 21.1:1
- Resource Index
- 39/100
- Enrollment
- 2,142
- Students per teacher
- 21:1
- Resource Index
- 32/100
Similar high schools in Elk Grove
5 comparable high schools (grades 9-12) serving the same city.
Franklin High
Standard public school
2,650 students 23.2:1 students per teacher
Pleasant Grove High
Standard public school
2,536 students 22.6:1 students per teacher
Monterey Trail High
Standard public school
2,263 students 21.1:1 students per teacher
Laguna Creek High
Standard public school
2,142 students 21:1 students per teacher
Elk Grove High
Standard public school
1,684 students 19.1:1 students per teacher
Nationwide high 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 (~2,109 students)
Frequently asked questions about Cosumnes Oaks High
How many students attend Cosumnes Oaks High?
Cosumnes Oaks High has 2,109 students enrolled. It is a high school in Elk Grove, CA. CCD year-over-year: 2,212 (2022-23) → 2,151 (2023-24), nearly flat (-61).
What is the student-teacher ratio at Cosumnes Oaks High?
The student-teacher ratio at Cosumnes Oaks High is 21.7:1, which is 1% higher than the California average of 21.5:1 and 38% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Cosumnes Oaks High?
26.6% of students at Cosumnes Oaks High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Cosumnes Oaks High?
The largest demographic group at Cosumnes Oaks High is Asian at 43.1% of enrollment, in Elk Grove, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 73.1/100.
What is the Resource Investment Index for Cosumnes Oaks High?
Cosumnes Oaks High has a Resource Investment Index of 38/100 (typical 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 Cosumnes Oaks High rank among high schools in Elk Grove?
By Resource Investment Index, Cosumnes Oaks High ranks #4 of 6 high schools in Elk Grove, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Elk Grove on the city page.
What other schools are in Elk Grove Unified?
Besides Cosumnes Oaks High, Elk Grove Unified also operates Franklin High (2,650 students), Pleasant Grove High (2,536 students), and Sheldon High (2,368 students). See the Elk Grove Unified district page for the complete list.