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What's the biggest difference between Castlemont High and what you expected?
Community prompt from u/allk12. Replies below.
Enrollment
719
High
DISTRICT 572 · STATE 838
SCHOOL COMMUNITY·OAKLAND UNIFIED·NCES 062805012992
Castlemont High
8601 MacArthur Blvd., Oakland, CA 94605 · (510) 879-2301 · Alameda County
GRADES 09–12HIGH11-CITYTITLE IREGULAR SCHOOL719 STUDENTS
Student : Teacher
14.0:1
51 FTE teachers
DISTRICT 15.0:1 · STATE 18.2:1
Free / Reduced Lunch
99%
712 students
DISTRICT 83% · STATE 65%
Community
5
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CAASPP 2024-25 . % met or exceeded standardEnglish Language Arts
6.4%
CA avg 49.1% . -9.6pp since 2014
Math
5.7%
CA avg 37.7% . +1.7pp since 2014
What this means: On the CAASPP, California's statewide test, about 6 of every 100 students at this school read and write at grade level and about 6 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 10 points since 2014, while math scores are up about 2 points.
Source: CAASPP. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
6.7%
composite math + reading, all grades
Predicted
21.5%
based on CA schools with similar FRL share
Beats by
-14.8pp
below demographic expectation
What this means: About 7% of students here test proficient in math and reading, below the roughly 22% typical for California schools with a similar share of low-income students. BeatsExpectations compares each school with others at the same poverty level, not by raw scores, so a school lands here when its results trail those comparable schools, which is not the same as having low scores. A higher-scoring school can still fall in this tier if similar schools score higher still.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
719
-139 (-16%) vs 2017
Student : Teacher
14.0:1
was 16.4:1
% White
2%
was 1%
% Hispanic
61%
was 64%
% Black
29%
was 29%
% Asian
2%
was 2%
Source: NCES Common Core of Data
About Castlemont High
Castlemont High is an average-sized high school in Oakland, California, part of Oakland Unified. The school instructs 719 students in grades 9 through 12.
Oakland Unified comprises 84 schools with combined enrollment of 33,973 students; Castlemont High is among them.
Looking at the student body, Castlemont High lists that the largest single group is Hispanic, at 61% of enrollment. The remainder consists of 29% Black, 3% multiracial, 3% Pacific Islander, 2% White. By comparison, Alameda County as a whole is about 23% Hispanic, so the school skews meaningfully more Hispanic than its surroundings.
On the income-and-resources front, Castlemont High records 51 full-time-equivalent teachers, putting the student-to-teacher ratio at about 14.0:1. That figure is tighter than the state norm's 18.2:1 average. Roughly 99% of students at Castlemont High qualify for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. That share is higher than Alameda County's rate of about 49%.
On a residual basis (actual vs predicted given the student mix), Castlemont High falls in the UNDERPERFORMING tier of the BeatsExpectations residual. Given its student profile, a typical campus would land near 21.5%; this one comes in at 6.7%, -14.8 points off the demographic line.
In the broader community, Alameda County reports that the typical household earns roughly $129,367 per year, roughly 52% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 6%. Across Alameda County's 394 public schools (combined enrollment of about 210,511 students), Castlemont High is one campus in the mix.
Nearest neighbor: LPS Oakland R & D Campus, around 0.1 miles off. Within five miles, there are 8 other public schools.
The school occupies a metropolitan site.
Five-year trend. Over the past 7-year window, the student count edged down 16%: 858 students in 2018 compared to 719 in 2025. The student-to-teacher ratio narrowed from 16.4:1 in 2018 to 14.0:1 today.
On the community side, the page collects discussion, questions, and updates around sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.
Alameda County at a glance
View full county profilePopulation
1,649,473
Census ACS
Median income
$129,367
Household, ACS
Bachelor's+
52%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
394
210,511 students
Quick facts
Related schools
Other schools in Oakland Unified
- Oakland Technical HighHigh · 1,812 students
- Oakland HighHigh · 1,579 students
- Skyline HighHigh · 1,250 students
- Fremont HighHigh · 1,166 students
- Coliseum College Prep AcademyHigh · 861 students
- Edna Brewer MiddleMiddle · 785 students
Other schools in Oakland
- Oakland Technical HighHigh · 1,812 students
- Oakland HighHigh · 1,579 students
- Skyline HighHigh · 1,250 students
- Fremont HighHigh · 1,166 students
- Yu Ming CharterElementary · 959 students
- Coliseum College Prep AcademyHigh · 861 students
Nearby schools
- LPS Oakland R & D Campus0.1 mi · 173
- Aspire College Academy0.4 mi · 206
- Francophone Charter School of Oakland0.6 mi · 324
- East Oakland Pride Elementary0.6 mi · 314
- Oakland Academy of Knowledge Elementary0.6 mi · 231
- Rudsdale Continuation High0.7 mi · 333
Frequently asked questions
About Castlemont HighHow many students attend Castlemont High?
Castlemont High enrolls approximately 719 students in grades 09-12.
Is Castlemont High an elementary, middle, or high school?
Castlemont High is a high school covering grades 09-12.
How many students per teacher at Castlemont High?
Approximately 14.0:1 students per teacher at Castlemont High.
How diverse is Castlemont High?
Castlemont High reports a student body of 2% White, 61% Hispanic, 29% Black, 2% Asian, 3% Two or more.
Who oversees Castlemont High?
Castlemont High is overseen by Oakland Unified in Alameda County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.