- Enrollment
- 1,812
- Students per teacher
- 18.3:1
- Resource Index
- 31/100
High school (grades 9-12) · Oakland, CA
Castlemont High
Federal NCES profile for Castlemont High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 062805012992
👥 S:T ratio 35
🌟 Gifted program 70
🎓 Counselors 28
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Castlemont High earns 33/100 on the Resource Investment Index, with class sizes smaller than 86% of California schools.
- #16 of 22
- high schools in Oakland · Resource Index
- 33
- Resource Index · Typical
- 16.3:1
- small classes for California
- 94.1%
- free-lunch eligible
Castlemont High has class sizes smaller than 86% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Castlemont High ranks #16 of 22 high schools in Oakland, CA.
School address
District: Oakland Unified · California
NCES ID 062805012992 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+18 students YoY
Castlemont High held near 698 students from 2022-23 to 2023-24 (+18 headcount).
Teacher FTE lost 44.5 → 43.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+18 students YoY 062805012992 · Oakland, CA High · MID · TRAD
719 enr · 16.3:1 · 94.1% lunch · RII 33
Nearest enrollment peer: Oakland Technical High (1,812 students)
Castlemont High held near 698 students from 2022-23 to 2023-24 (+18 headcount). Teacher FTE lost 44.5 → 43.4 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Castlemont High in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Oakland Techni
Oakland Technical High
1,812 students
- Oakland High
Oakland High
1,579 students
- Skyline High
Skyline High
1,250 students
- Fremont High
Fremont High
1,166 students
- Coliseum Colle
Coliseum College Prep Academy
861 students
- This school 719
Castlemont High
719 students
What this shows Castlemont High reports 719 students on the CCD universe file.
How Castlemont High compares
Castlemont 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 | 16.3:1 | ▼ 24% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 94.1% | ▲ 70% | 55.5% | 51.7% |
| Enrollment | 719 | top 22% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.3:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
719
Bigger than 81% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
94.1%
free-lunch eligible
- 70% above the California average of 55.5%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
16.3:1
students per teacher
- 24% below state mean
Top 14% in California - lower ratio than 86% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
81.6%
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
$22,112
per pupil, district-wide
- above California avg of $18,665
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors2.0 FTE
Per 360 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 69 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 9.6 per 100 students. Reported via the Civil Rights Data Collection. Includes 7 expulsions.
Student demographics
Hispanic or Latino 60.6%
African American 28.6%
Two or More 3.5%
Native Hawaiian / Pacific Islander 3.2%
White 2.1%
Asian 1.5%
American Indian / Alaska Native 0.6%
Largest group: Hispanic or Latino at 60.6% of enrollment.
Student-body diversity index 54.8/100
Simpson diversity index - at 54.8, Castlemont High is more mixed than the California school average of 46.0.
Programs
AP courses offered 1
Gifted & talented Yes
District finance for Oakland Unified reports $22,112 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Castlemont High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Oakland Technical High | Larger | Lower economic need | Higher S:T ratio |
| Oakland High | Larger | Lower economic need | Higher S:T ratio |
| Skyline High | Larger | Lower economic need | Lower S:T ratio |
| Fremont High | Larger | Similar economic need | Similar S:T ratio |
| Coliseum College Prep Academy | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Castlemont High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,579
- Students per teacher
- 18.1:1
- Resource Index
- 34/100
- Enrollment
- 1,250
- Students per teacher
- 13.6:1
- Resource Index
- 33/100
- Enrollment
- 1,166
- Students per teacher
- 17.1:1
- Resource Index
- 46/100
- Enrollment
- 861
- Students per teacher
- 17.2:1
- Resource Index
- 25/100
Similar high schools in Oakland
6 comparable high schools (grades 9-12) serving the same city.
Oakland Technical High
Standard public school
1,812 students 18.3:1 students per teacher
Oakland High
Standard public school
1,579 students 18.1:1 students per teacher
Skyline High
Standard public school
1,250 students 13.6:1 students per teacher
Fremont High
Standard public school
1,166 students 17.1:1 students per teacher
Arise High
Standard public school
396 students 15.2:1 students per teacher
Latitude 37.8 High
Standard public school
389 students 20.5:1 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 (~719 students)
Frequently asked questions about Castlemont High
How many students attend Castlemont High?
Castlemont High has 719 students enrolled. It is a high school in Oakland, CA. CCD year-over-year: 680 (2022-23) → 698 (2023-24), nearly flat (+18).
What is the student-teacher ratio at Castlemont High?
The student-teacher ratio at Castlemont High is 16.3:1, which is 24% lower than the California average of 21.5:1 and 4% higher 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 Castlemont High?
94.1% of students at Castlemont High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Castlemont High?
The largest demographic group at Castlemont High is Hispanic or Latino at 60.6% of enrollment, in Oakland, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.8/100.
What is the Resource Investment Index for Castlemont High?
Castlemont High has a Resource Investment Index of 33/100 (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 Castlemont High rank among high schools in Oakland?
By Resource Investment Index, Castlemont High ranks #16 of 22 high schools in Oakland, 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 Oakland on the city page.
What other schools are in Oakland Unified?
Besides Castlemont High, Oakland Unified also operates Oakland Technical High (1,812 students), Oakland High (1,579 students), and Skyline High (1,250 students). See the Oakland Unified district page for the complete list.