1
If you could change one rule at Castlemont High, what would it be?
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
F
allk12 Grade
Scored higher than 2% of California public high schools
- FTest scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- DBeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- CThree-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded California public high schools
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
6
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 175 | 24% |
| Grade 10 | 201 | 28% |
| Grade 11 | 152 | 21% |
| Grade 12 | 191 | 27% |
Student demographics
55%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 70% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). 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.
Performance levels, 2024-25
| Subject | Standard Exceeded | Standard Met | Standard Nearly Met | Standard Not Met |
|---|---|---|---|---|
| English Language Arts | 0.0% | 6.4% | 21.3% | 72.3% |
| Math | 2.3% | 3.4% | 9.1% | 85.2% |
Share of tested students at each CAASPP level. Each student counts in one level, so a row adds to about 100%.
CAASPP results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 6.4% | 5.7% |
| 2023-24 | 8.2% | 6.4% |
| 2022-23 | 3.2% | 1.1% |
| 2021-22 | 11.8% | 1.6% |
| 2018-19 | 9.4% | 0.0% |
| 2017-18 | 2.4% | 0.0% |
| 2016-17 | 1.3% | 1.1% |
| 2015-16 | 6.0% | 0.0% |
| 2014-15 | 16.0% | 4.0% |
% met or exceeded standard, all students and all tested grades.
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 →
Schools most like Castlemont High
Castlemont High's state test result (6.7% proficient) is higher than 0 of the 4 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Castlemont High this school | 719 | 99.0% | 6.7% |
| George Washington Preparatory High Los Angeles | 738 | 97.2% | 16.3% |
| Gardena Senior High Gardena | 1,343 | 93.5% | 31.1% |
| TEACH Tech Charter High Los Angeles | 363 | 91.2% | N/A |
| Morningside High Inglewood | 407 | 93.9% | 17.5% |
| Rancho Dominguez Preparatory Long Beach | 701 | 90.6% | 30.5% |
Matched among California high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Castlemont High ranks
Among high schools| Measure | This school | In California | In Alameda County |
|---|---|---|---|
| State test proficiency ranked highest first | 6.7% | #1,047 of 1,052 | #34 of 35 |
| Math proficiency ranked highest first | 5.7% | #1,033 of 1,056 ▼ 25 | #32 of 35 no change |
| Reading proficiency ranked highest first | 6.4% | #1,055 of 1,056 ▼ 1 | #35 of 35 no change |
| 3-year test score change ranked biggest drop first | -0.7pp | #341 of 1,044 | #15 of 34 |
| Enrollment ranked largest first | 719 | #883 of 2,093 | #32 of 85 |
| Students per teacher ranked fewest first | 14.0:1 | #67 of 1,352 | #4 of 55 |
| Diversity index ranked most diverse first | 54.9% | #551 of 1,351 | #31 of 55 |
| Free and reduced lunch ranked highest share first | 99.0% | #11 of 1,575 | #4 of 68 |
| Enrollment change since 2017-18 ranked steepest decline first | -16.2% | #262 of 802 | #10 of 27 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
719
-30 (-4%) vs 2020
Student : Teacher
14.0:1
was 14.4:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 719 | 51.2 | 14.0:1 | 99% (712) |
| 2023-24 | 698 | 43.4 | 16.1:1 | 99% (693) |
| 2022-23 | 680 | 44.5 | 15.3:1 | 98% (668) |
| 2020-21 | 749 | 52 | 14.4:1 | 89% (670) |
| 2017-18 | 858 | 52.3 | 16.4:1 | 92% (789) |
| 2015-16 | 564 | 31 | 18.2:1 | 81% (455) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Castlemont High.
Since 2017-18: students down 16% (858 to 719); teachers down 2% (52.3 to 51.2).
About Castlemont High
Castlemont High is a medium-sized high school in Oakland Unified, located in Oakland, California. It serves 719 students in grades 9 through 12.
Oakland Unified counts 84 schools and 33,973 students, including Castlemont High.
Castlemont High is 61% Hispanic by enrollment. Other reported shares: 29% Black, 3% multiracial, 3% Pacific Islander, and 2% White. That compares with about 23% Hispanic among all Alameda County residents. Pick two students at random and there is a 55% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
The school reported 51.2 full-time-equivalent teachers in 2024-25 and a ratio of 14.0:1. The school has fewer students per teacher than the 18.2:1 average for high schools in California. Eligible students account for 99% of enrollment in the free or reduced-price lunch program. Compared with the 49% average for public schools in Alameda County, the school's rate is higher.
Castlemont High is graded F by allk12, scoring above 2% of California public high schools once test results, poverty-adjusted performance, and the recent trend are combined.
Schools in California with a similar free or reduced-price lunch share are predicted to post an average proficiency rate on state tests near 21.5%. Castlemont High posts 6.7%, 14.8 points below that, which places it in the bottom 10% statewide on BeatsExpectations.
According to the American Community Survey, in Alameda County, the median household income is $129,367, a bachelor's degree or higher is held by about 52% of adults, and the poverty rate is about 6%. There are 394 public schools in Alameda County, enrolling about 210,511 students in all.
Nearest public school: LPS Oakland R & D Campus, less than a tenth of a mile away. A five-mile radius around the school includes at least 8 other public schools.
Its location is classified as City: Large by the National Center for Education Statistics.
The school enrolled 719 students in 2024-25, 30 fewer than the 749 it had in 2020-21.
Threads on this page can be about sports schedules, lunch menus, and spirit week. Alumni can share how the school prepared them.
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.