Enrollment
843
California · 2024-25 NCES data
Middle school (grades 6-8) · Martinez, CA
Martinez Junior High
Federal NCES profile for Martinez Junior High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 062403003618
👥 S:T ratio 9
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 50
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Martinez Junior High earns 22/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools.
- #7 of 10
- public schools in Martinez · Resource Index
- 22
- Resource Index · Lower
- 22.8:1
- students per teacher
- 32.3%
- free-lunch eligible
Martinez Junior High has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Martinez Junior High ranks #7 of 10 public schools in Martinez, CA.
School address
District: Martinez Unified · California
NCES ID 062403003618 Verify on NCES CCD record →
Teachers (FTE)
37.0
Federal CCD staff survey
Students per teacher
22.8:1
vs 21.5:1 California avg
+6% vs state
Free-lunch eligible
32.3%
vs 55.5% California avg
-42% vs state
Student-teacher ratio in context
How Martinez Junior High compares with California and U.S. medians
What stands out at Martinez Junior High
Martinez Junior High is a mid-sized middle school in Martinez, California, enrolling 843 students.
Class loads run somewhat heavier than typical: 22.8:1 puts it in the larger third of California schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 32.3% of students eligible for free meals.
Enrollment of 843 puts it in the larger third of California schools by headcount.
Its Resource Investment Index lands in the lower third of 9,998 scored California schools.
Among 1,098 similarly sized, similarly resourced-need California schools statewide, it ranks #885, in the lower tier once campus size and economic need are matched.
Its student body is led by White (44%) and Hispanic or Latino (31%), more mixed than most schools in the state (diversity index 69/100).
Counselor access is stretched at roughly 602 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance runs somewhat below the norm, with 20.2% of students chronically absent per the 2021-22 civil-rights collection.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Martinez Unified also operates Alhambra Senior High (1,028 students) and John Swett Elementary (533 students) alongside Martinez Junior High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Martinez Junior High compares
Martinez Junior High on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 22.8:1 | ▲ 6% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 32.3% | ▼ 42% | 55.5% | 51.7% |
| Enrollment | 843 | top 16% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
22.8:1
Leaner classes than 9% of US schools, heavier class loads than most.
843
Bigger than 87% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
32.3%
free-lunch eligible
- 42% 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
22.8:1
students per teacher
- 6% above state mean
Top 61% in California - lower ratio than 39% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
20.2%
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
$14,299
per pupil, district-wide
- below California avg of $16,509
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.4 FTE
Per 602 students, the combined health-and-guidance staffing load for this school.
Discipline context
20
in-school suspensions + 84 out-of-school
Suspension rate: 2.4 per 100 students. Combined in-school and out-of-school rate: 12.3 per 100 students. Reported via the Civil Rights Data Collection. Includes 1 expulsion.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 43.5%
Hispanic or Latino 31.2%
Two or More 14.4%
Asian 7.7%
African American 2.3%
Native Hawaiian / Pacific Islander 0.7%
American Indian / Alaska Native 0.2%
Largest group: White at 43.5% of enrollment.
Student-body diversity index 68.6/100
Simpson diversity index - at 68.6, Martinez Junior High is more mixed than the California school average of 46.0.
Programs
Funding & spending
District-wide per-pupil expenditure for Martinez Unified, which includes Martinez Junior High.
$14,299
Per student
-13%
vs California
Avg $16,509
-14%
vs U.S.
Avg $16,593
Revenue mix
Local 55.8%
State 37.2%
Federal 7.0%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Martinez Junior High Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Alhambra Senior High | Similar size | Similar economic need | Lower S:T ratio |
| John Swett Elementary | Smaller | Lower economic need | Lower S:T ratio |
| Morello Park Elementary | Smaller | Lower economic need | Similar S:T ratio |
| John Muir Elementary | Smaller | Similar economic need | Similar S:T ratio |
| Las Juntas Elementary | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Martinez Junior High's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,028
- Students per teacher
- 19.4:1
- Resource Index
- 32/100
- Enrollment
- 533
- Students per teacher
- 20.5:1
- Resource Index
- 30/100
- Enrollment
- 496
- Students per teacher
- 21.6:1
- Resource Index
- 25/100
- Enrollment
- 423
- Students per teacher
- 23.5:1
- Resource Index
- 14/100
- Enrollment
- 353
- Students per teacher
- 20.8:1
- Resource Index
- 26/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~843 students)
Similar student-teacher ratio (~22.8:1)
Next steps
Verify locally before acting on Martinez Junior High's federal record.
- Compare Martinez Junior High against another school. Compare schools
- Martinez Unified's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Martinez Junior High
How many students attend Martinez Junior High?
Martinez Junior High has 843 students enrolled. It is a middle school in Martinez, CA.
What is the student-teacher ratio at Martinez Junior High?
The student-teacher ratio at Martinez Junior High is 22.8:1, which is 6% higher than the California average of 21.5:1 and 45% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Martinez Junior High?
32.3% of students at Martinez Junior High are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Martinez Junior High?
The largest demographic group at Martinez Junior High is White at 43.5% of enrollment, in Martinez, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 68.6/100.
What is the Resource Investment Index for Martinez Junior High?
Martinez Junior High has a Resource Investment Index of 22/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Martinez Junior High rank among public schools in Martinez?
By Resource Investment Index, Martinez Junior High ranks #7 of 10 public schools in Martinez, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Martinez on the city page.
Is Martinez Junior High a good school?
Martinez Junior High earns 22/100 on the Resource Investment Index, with class sizes near the California median. It is also more racially and ethnically mixed than most California schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Martinez Unified?
Besides Martinez Junior High, Martinez Unified also operates Alhambra Senior High (1,028 students), John Swett Elementary (533 students), and Morello Park Elementary (496 students). See the Martinez Unified district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.