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SCHOOL COMMUNITY·MARTINEZ UNIFIED·NCES 062403003618

Martinez Junior High

1600 Ct. St., Martinez, CA 94553 · (925) 335-5820 · Contra Costa County
GRADES 06–08MIDDLE21-SUBURBREGULAR SCHOOL843 STUDENTS
B
allk12 Grade
Scored higher than 62% of California public middle schools
  • B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • C-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • A+Three-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 middle schools

Enrollment
843
Middle
DISTRICT 472 · STATE 659
Student : Teacher
23.3:1
36 FTE teachers
DISTRICT 20.5:1 · STATE 20.7:1
Free / Reduced Lunch
33%
276 students
DISTRICT 36% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 629535%
Grade 729735%
Grade 825130%
Student demographics
69%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 69% · STATE 62% · US 70%
White
36744%
DISTRICT 43% · STATE 20% · US 43%
Hispanic
26331%
DISTRICT 32% · STATE 56% · US 30%
Black
192%
DISTRICT 2% · STATE 5% · US 15%
Asian
658%
DISTRICT 8% · STATE 12% · US 6%
Two+
12114%
DISTRICT 14% · STATE 6% · US 5%
Native American
20%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
61%
DISTRICT 1% · STATE 0% · US 0%
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
Male
41449%
Female
42951%

School pathway

Feeds from
John Muir ElementaryKG–05John Swett ElementaryKG–05Las Juntas ElementaryKG–05Morello Park ElementaryKG–05
Based on grade levels within Martinez Unified. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
58.1%
CA avg 49.1% . +6.1pp since 2014
Math
47.5%
CA avg 37.7% . +7.5pp since 2014

What this means: On the CAASPP, California's statewide test, about 58 of every 100 students at this school read and write at grade level and about 48 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are up about 6 points since 2014, while math scores are up about 8 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts22.5%35.6%22.1%19.8%
Math22.5%25.1%23.9%28.5%
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 yearEnglish Language ArtsMath
2024-2558.1%47.5%
2023-2456.0%42.4%
2022-2349.9%34.8%
2021-2247.8%31.4%
2018-1949.4%33.5%
2017-1854.1%41.0%
2016-1750.6%39.7%
2015-1648.0%43.0%
2014-1552.0%40.0%
% 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 · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
51.0%
composite math + reading, all grades
Predicted
60.4%
based on CA schools with similar FRL share
Beats by
-9.4pp
below demographic expectation

What this means: About 51% of students here test proficient in math and reading, compared with the roughly 60% typical for California schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among California's top nor bottom 10%.

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 Martinez Junior High

Martinez Junior High's state test result (51.0% proficient) is higher than 5 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Martinez Junior High this school84332.7%51.0%
Sequoia Middle
Newbury Park
79831.0%48.5%
Rincon Valley Middle
Santa Rosa
72534.1%47.5%
Rosedale Middle
Bakersfield
81029.6%49.0%
Norris Middle
Bakersfield
99233.4%46.8%
Dolores Huerta Middle
Burbank
93130.6%41.6%
Matched among California middle 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 Martinez Junior High ranks

Among middle schools
MeasureThis schoolIn CaliforniaIn Contra Costa County
State test proficiency
ranked highest first
51.0%#339 of 1,224#16 of 39
Math proficiency
ranked highest first
47.5%#303 of 1,227
▲ 47
#16 of 42
▲ 1
Reading proficiency
ranked highest first
58.1%#355 of 1,227
▼ 2
#17 of 42
no change
3-year test score change
ranked biggest gain first
+13.2pp#25 of 1,214#2 of 42
Enrollment
ranked largest first
843#378 of 1,377#18 of 44
Students per teacher
ranked fewest first
23.3:1#1,002 of 1,279#28 of 43
Diversity index
ranked most diverse first
68.6%#175 of 1,278#18 of 43
Free and reduced lunch
ranked highest share first
32.7%#1,120 of 1,329#26 of 40
Enrollment change since 2017-18
ranked steepest decline first
-17.1%#438 of 930#12 of 35
Ranked against other public middle 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 2024-25
Enrollment
843
+11 (+1%) vs 2020
+12% since 1990-91, when it was 755
Student : Teacher
23.3:1
was 21.9:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2584336.223.3:133% (276)
2023-2480331.925.2:134% (270)
2022-237673820.2:145% (343)
2020-218323821.9:125% (212)
2017-181,01742.324.0:129% (296)
2015-161,0164423.1:134% (344)
2010-11891N/AN/A28% (249)
2000-011,0274522.8:117% (178)
1990-917554118.4:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Martinez Junior High.

Since 2017-18: students down 17% (1,017 to 843); teachers down 14% (42.3 to 36.2).

About Martinez Junior High

Martinez Junior High is a middle-grades school in Martinez, California, reachable at (925) 335-5820. Total enrollment is 843 students, and the grades served are 6 through 8. By comparison, middle schools in California enroll about 659 students on average.

Within Martinez Unified, Martinez Junior High is one of 8 schools. The district enrolls 3,774 students.

No group is above 50% at Martinez Junior High; the largest is White, at 44%. Beyond that, enrollment is 31% Hispanic, 14% multiracial, 8% Asian, and 2% Black. Among Contra Costa County residents, the White share is about 41%. The diversity index for Martinez Junior High is 69%. For US public schools as a whole it is 70%.

The school's 36.2 full-time-equivalent teachers translate to a student-to-teacher ratio of 23.3:1. Statewide, middle schools in California average 20.7:1. Income data for the school show 33% of students eligible for free or reduced-price lunch. It compares with 45% for public schools in Contra Costa County.

Martinez Junior High earns a B on the allk12 Grade, which blends test scores, results against poverty-based expectations, and the three-year trend. It scored higher than 62% of California public middle schools.

On BeatsExpectations, Martinez Junior High is 9.4 points below its prediction, a result in the middle 80% of California schools.

In the wider Contra Costa County area, median household income comes to about $127,229, roughly 45% of adults have a four-year degree or more, and about 6% of residents live below the federal poverty line. Contra Costa County's 280 public schools enroll about 167,423 students and include Martinez Junior High.

A public school about 0.2 miles away, Briones (Alternative), is the closest to Martinez Junior High. Inside a five-mile radius, there are at least 8 other public schools. The school's 51.0% average proficiency ranks 3rd among 6 nearby schools.

The school is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more, according to its NCES locale (Suburb: Large).

From 2020-21 to 2024-25, enrollment held near 843, starting from 832. The number of students per teacher increased from 21.9 to 23.3 over 4 years.

People who know Martinez Junior High can post here about homework, tutoring, and testing dates. Teachers and staff are welcome to share updates too.

Contra Costa County at a glance

View full county profile
Population
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

School name
Martinez Junior High
District
Martinez Unified
Address
1600 Ct. St., Martinez, CA 94553
Phone
(925) 335-5820
County
Contra Costa County
Level
Middle
Grade range
06–08
Total enrollment
843
Teachers (FTE)
36
Student–teacher ratio
23.3:1
Free and reduced lunch
276 (33%)
Locale
21-Suburb: Large
NCES ID
062403003618
Charter school
No
Virtual school
No

Related schools

Other schools in Martinez Unified
Other schools in Martinez
Nearby schools

Frequently asked questions

About Martinez Junior High
How many students attend Martinez Junior High?
Martinez Junior High enrolls approximately 843 students in grades 06-08.
Is Martinez Junior High an elementary, middle, or high school?
Martinez Junior High is a middle school covering grades 06-08.
How many teachers does Martinez Junior High have?
Martinez Junior High employs 36 FTE teachers, for a student-to-teacher ratio of 23.3:1.
What is the student diversity at Martinez Junior High?
Student demographics at Martinez Junior High are roughly 44% White, 31% Hispanic, 2% Black, 8% Asian, 14% Two or more.
What district is Martinez Junior High in?
Martinez Junior High is part of Martinez Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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