Enrollment
21
High
DISTRICT 824 · STATE 838
SCHOOL COMMUNITY·MT. DIABLO UNIFIED·NCES 062637014515
Glenbrook Academy
2351 Olivera Rd., Concord, CA 94520 · (925) 682-8000 · Contra Costa County
GRADES 06–12HIGH21-SUBURBTITLE ISPECIAL EDUCATION SCHOOL21 STUDENTS
·
allk12 Grade
Not graded
Schools serving specialized populations are not graded, because state test results are not a fair comparison for them. How grades work
Student : Teacher
10.5:1
2 FTE teachers
DISTRICT 16.2:1 · STATE 18.2:1
Free / Reduced Lunch
57%
12 students
DISTRICT 56% · STATE 65%
Community
0
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 8 | 3 | 14% |
| Grade 9 | 2 | 10% |
| Grade 10 | 3 | 14% |
| Grade 11 | 5 | 24% |
| Grade 12 | 8 | 38% |
Student demographics
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
BeatsExpectations
Not computed for this schoolBeatsExpectations is not computed for specialized-population schools (schools for the deaf or blind, therapeutic and behavioral-health placements, juvenile-justice and alternative-education settings, and similar). State ELA/Math proficiency rates are not a comparable metric for these populations, so a demographically-adjusted residual against general-enrollment peers would be misleading. About the methodology →
Where Glenbrook Academy ranks
Among high schools| Measure | This school | In California | In Contra Costa County |
|---|---|---|---|
| Enrollment ranked largest first | 21 | #1,928 of 2,093 | #53 of 54 |
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
21
-2 (-9%) vs 2020
Student : Teacher
10.5:1
was 7.7:1
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 | 21 | 2 | 10.5:1 | 57% (12) |
| 2023-24 | 16 | 2 | 7.9:1 | 75% (12) |
| 2022-23 | 15 | 2.1 | 7.3:1 | 60% (9) |
| 2020-21 | 23 | 3 | 7.7:1 | 48% (11) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Glenbrook Academy.
About Glenbrook Academy
Glenbrook Academy is a high school with a street address in Concord, California. The school counted 21 students in 2024-25, covering grades 6 through 12. That is 97% below the average of about 838 students for high schools in California.
The 50 schools of Mt. Diablo Unified, including Glenbrook Academy, enroll 29,210 students.
More than half of enrollment at Glenbrook Academy is Hispanic: 52%. The remaining shares are 29% White, 10% Black, and 10% multiracial. Contra Costa County as a whole is about 28% Hispanic, so the school's share is higher.
The student-to-teacher ratio at Glenbrook Academy is 10.5:1, based on 2 full-time-equivalent teachers. Statewide, high schools in California average 18.2:1. Lunch program data show 57% of students are eligible for free or reduced-price meals. By comparison, the figure for public schools in Contra Costa County is 45%.
For Contra Costa County, Census Bureau data show median household income comes to about $127,229, the share of adults with a bachelor's degree or higher is 45%, and about 6% of people live in poverty. There are 280 public schools in the county, enrolling about 167,423, Glenbrook Academy among them.
Glenbrook Academy's nearest public school is Rocketship Futuro Academy (less than a tenth of a mile). There are at least 8 more public schools inside five miles.
Glenbrook Academy has an NCES locale of Suburb: Large.
Federal enrollment counts decreased from 23 (2020-21) to 21 (2024-25). From 2020-21 to 2024-25, the ratio increased from 7.7:1 to 10.5:1.
This community page is for conversations about open houses, carpools, and field trips. Teachers and staff are welcome to share updates too.
Contra Costa County at a glance
View full county profilePopulation
1,165,012
Census ACS
Median income
$127,229
Household, ACS
Bachelor's+
45%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
280
167,423 students
Quick facts
Related schools
Other schools in Mt. Diablo Unified
- College Park HighHigh · 1,948 students
- Northgate HighHigh · 1,546 students
- Mt. Diablo HighHigh · 1,397 students
- Concord HighHigh · 1,137 students
- Ygnacio Valley HighHigh · 1,059 students
- Foothill MiddleMiddle · 1,005 students
Other schools in Concord
- Clayton Valley Charter HighHigh · 2,373 students
- Mt. Diablo HighHigh · 1,397 students
- Concord HighHigh · 1,137 students
- Ygnacio Valley HighHigh · 1,059 students
- El Dorado MiddleMiddle · 861 students
- Meadow Homes ElementaryElementary · 732 students
Nearby schools
- Rocketship Futuro Academy0.0 mi · 669
- Sun Terrace Elementary0.5 mi · 418
- Holbrook Language Academy0.5 mi · 501
- Floyd I. Marchus0.6 mi · 50
- Mt. Diablo High0.9 mi · 1,397
- Olympic High1.1 mi · 233
Frequently asked questions
About Glenbrook AcademyHow large is Glenbrook Academy?
Glenbrook Academy enrolls approximately 21 students in grades 06-12.
What age range does Glenbrook Academy serve?
Glenbrook Academy serves students from grade 06 through grade 12.
How many teachers does Glenbrook Academy have?
Glenbrook Academy employs 2 FTE teachers, for a student-to-teacher ratio of 10.5:1.
What is the student diversity at Glenbrook Academy?
Student demographics at Glenbrook Academy are roughly 29% White, 52% Hispanic, 10% Black, 10% Two or more.
What district is Glenbrook Academy in?
Glenbrook Academy is part of Mt. Diablo Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.