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SCHOOL COMMUNITY·MT. DIABLO UNIFIED·NCES 062637003944

El Dorado Middle

1750 West St., Concord, CA 94521 · (925) 682-5700 · Contra Costa County
GRADES 06–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL861 STUDENTS
D
allk12 Grade
Scored higher than 12% of California public middle schools
  • DTest 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.
  • B+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
861
Middle
DISTRICT 747 · STATE 659
Student : Teacher
23.5:1
37 FTE teachers
DISTRICT 23.2:1 · STATE 20.7:1
Free / Reduced Lunch
75%
649 students
DISTRICT 56% · 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 630836%
Grade 726130%
Grade 829234%
Student demographics
63%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 71% · STATE 62% · US 70%
White
13916%
DISTRICT 27% · STATE 20% · US 43%
Hispanic
48957%
DISTRICT 42% · STATE 56% · US 30%
Black
243%
DISTRICT 3% · STATE 5% · US 15%
Asian
9611%
DISTRICT 14% · STATE 12% · US 6%
Two+
9111%
DISTRICT 12% · STATE 6% · US 5%
Native American
10%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
212%
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
43450%
Female
42750%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
26.6%
CA avg 49.1% . +0.6pp since 2014
Math
16.5%
CA avg 37.7% . -0.5pp since 2014

What this means: On the CAASPP, California's statewide test, about 27 of every 100 students at this school read and write at grade level and about 17 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores have held steady since 2014, while math scores have held steady.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts6.3%20.3%27.4%46.0%
Math6.4%10.1%22.3%61.2%
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 yearEnglish Language ArtsMath
2024-2526.6%16.5%
2023-2423.0%10.3%
2022-2318.6%9.2%
2021-2224.4%10.4%
2020-2125.3%11.3%
2018-1923.6%12.2%
2017-1825.1%13.4%
2016-1729.4%16.5%
2015-1630.0%19.0%
2014-1526.0%17.0%
% 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
UNDERPERFORMING
Bottom 10% of CA schools after controlling for student poverty
Actual proficiency
19.1%
composite math + reading, all grades
Predicted
35.4%
based on CA schools with similar FRL share
Beats by
-16.3pp
below demographic expectation

What this means: About 19% of students here test proficient in math and reading, below the roughly 35% 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 El Dorado Middle

El Dorado Middle's state test result (19.1% proficient) is higher than 0 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
El Dorado Middle this school86175.4%19.1%
Yuba Gardens Intermediate
Olivehurst
76177.5%21.3%
Prescott Junior High
Modesto
74674.3%31.2%
Roosevelt Junior High
Modesto
81874.7%33.0%
Lodi Middle
Lodi
89378.9%30.7%
Oliver Wendell Holmes Middle
Northridge
87075.1%60.0%
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 El Dorado Middle ranks

Among middle schools
MeasureThis schoolIn CaliforniaIn Contra Costa County
State test proficiency
ranked highest first
19.1%#1,076 of 1,224#31 of 39
Math proficiency
ranked highest first
16.5%#980 of 1,227
▲ 125
#28 of 42
▲ 8
Reading proficiency
ranked highest first
26.6%#1,067 of 1,227
▲ 30
#34 of 42
no change
3-year test score change
ranked biggest gain first
+4.2pp#384 of 1,214#19 of 42
Enrollment
ranked largest first
861#353 of 1,377#15 of 44
Students per teacher
ranked fewest first
23.5:1#1,020 of 1,279#31 of 43
Diversity index
ranked most diverse first
62.6%#358 of 1,278#26 of 43
Free and reduced lunch
ranked highest share first
75.4%#639 of 1,329#15 of 40
Enrollment change since 2017-18
ranked steepest decline first
-2.5%#878 of 930#33 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
861
-5 (-1%) vs 2020
+24% since 1990-91, when it was 692
Student : Teacher
23.5:1
was 22.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2586136.623.5:175% (649)
2023-2481134.923.3:177% (624)
2022-2383233.225.1:171% (594)
2020-218663822.8:156% (489)
2017-188834221.0:163% (559)
2015-169834422.3:163% (622)
2010-11871N/AN/A51% (444)
2000-011,0044522.3:124% (245)
1990-916923519.8:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for El Dorado Middle.

Since 2017-18: students down 2% (883 to 861); teachers down 13% (42 to 36.6).

About El Dorado Middle

El Dorado Middle is a middle school in Concord, California, reachable at (925) 682-5700. It reports enrollment of 861 students in grades 6 through 8. The school is 31% bigger than the average for middle schools in California.

El Dorado Middle is one school in Mt. Diablo Unified, a system of 50 schools with 29,210 students.

At El Dorado Middle, 57% of students are Hispanic. After that, the student body is 16% White, 11% Asian, 11% multiracial, and 3% Black. Census figures show Contra Costa County is about 28% Hispanic. Measured by the diversity index, the student body scores 63%.

El Dorado Middle reports a ratio of 23.5 students per teacher, from 36.6 full-time-equivalent teachers. Across middle schools in California, the average ratio is 20.7:1. Lunch program data show 75% of students are eligible for free or reduced-price meals. That is 30 points above the 45% average for public schools in Contra Costa County.

On the allk12 Grade, El Dorado Middle lands at D, ahead of 12% of California public middle schools.

BeatsExpectations compares each school's average proficiency rate across its state test results with a prediction based on free or reduced-price lunch eligibility. El Dorado Middle posts 19.1% against a 35.4% prediction, a bottom-10% result in California.

Looking at the county, Contra Costa County, median household income comes to about $127,229, a bachelor's degree or higher is held by about 45% of adults, and the share of residents below the poverty line is 6%. The county's public schools total 280, with about 167,423 students.

Westwood Elementary is less than a tenth of a mile away, making it the nearest public school. El Dorado Middle is one of several public schools in the area, with at least 8 others within five miles. El Dorado Middle ranks 7th of 8 among nearby schools on average proficiency, with 19.1% against a local average of 35.6%.

The school's federal locale classification is Suburb: Large.

Federal data show 866 students in 2020-21 and 861 in 2024-25, a difference of under 3%.

El Dorado Middle has a community page on allk12 for topics such as pickup and drop-off, after-school programs, and teacher feedback. 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
El Dorado Middle
District
Mt. Diablo Unified
Address
1750 West St., Concord, CA 94521
Phone
(925) 682-5700
County
Contra Costa County
Level
Middle
Grade range
06–08
Total enrollment
861
Teachers (FTE)
37
Student–teacher ratio
23.5:1
Free and reduced lunch
649 (75%)
Locale
21-Suburb: Large
NCES ID
062637003944
Charter school
No
Virtual school
No

Related schools

Other schools in Mt. Diablo Unified
Other schools in Concord
Other El Dorado Middle schools

One other US public school is named El Dorado Middle. El Dorado Middle is the largest of the 2.

Nearby schools

Frequently asked questions

About El Dorado Middle
How many students attend El Dorado Middle?
El Dorado Middle enrolls approximately 861 students in grades 06-08.
What grades does El Dorado Middle serve?
El Dorado Middle serves grades 06-08.
How many students per teacher at El Dorado Middle?
Approximately 23.5:1 students per teacher at El Dorado Middle.
How diverse is El Dorado Middle?
El Dorado Middle reports a student body of 16% White, 57% Hispanic, 3% Black, 11% Asian, 11% Two or more.
Who oversees El Dorado Middle?
El Dorado Middle is overseen by Mt. Diablo Unified in Contra Costa County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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