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SCHOOL COMMUNITY·POMONA UNIFIED·NCES 063132004851

Lorbeer Middle

501 Diamond Bar Blvd., Diamond Bar, CA 91765 · (909) 397-4527 · Los Angeles County
GRADES 07–08MIDDLE21-SUBURBTITLE IREGULAR SCHOOL688 STUDENTS
B-
allk12 Grade
Scored higher than 53% 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.
  • B+Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • C-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
688
Middle
DISTRICT 545 · STATE 659
Student : Teacher
24.1:1
29 FTE teachers
DISTRICT 20.8:1 · STATE 20.7:1
Free / Reduced Lunch
74%
511 students
DISTRICT 87% · 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 735251%
Grade 833649%
Student demographics
44%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 28% · STATE 62% · US 70%
White
325%
DISTRICT 3% · STATE 20% · US 43%
Hispanic
50573%
DISTRICT 84% · STATE 56% · US 30%
Black
254%
DISTRICT 4% · STATE 5% · US 15%
Asian
9013%
DISTRICT 6% · STATE 12% · US 6%
Two+
335%
DISTRICT 2% · STATE 6% · US 5%
Native American
20%
DISTRICT 0% · STATE 0% · US 1%
Pacific Islander
10%
DISTRICT 0% · 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
34250%
Female
34650%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
47.4%
CA avg 49.1% . +0.4pp since 2014
Math
30.6%
CA avg 37.7% . -1.4pp since 2014

What this means: On the CAASPP, California's statewide test, about 47 of every 100 students at this school read and write at grade level and about 31 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 are down about 1 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts19.1%28.3%24.2%28.4%
Math18.3%12.3%23.9%45.5%
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
2024-2547.4%30.6%
2023-2444.2%27.9%
2022-2347.8%25.8%
2021-2251.8%29.1%
2018-1954.0%35.6%
2017-1853.0%35.1%
2016-1752.9%29.8%
2015-1656.0%34.0%
2014-1547.0%32.0%
% 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
37.5%
composite math + reading, all grades
Predicted
36.0%
based on CA schools with similar FRL share
Beats by
+1.5pp
above demographic expectation

What this means: About 37% of students here test proficient in math and reading, compared with the roughly 36% 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 Lorbeer Middle

Lorbeer Middle's state test result (37.5% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Lorbeer Middle this school68874.3%37.5%
Bohannon Middle
San Lorenzo
60673.6%26.7%
Sierra Vista Middle
Covina
77868.3%40.6%
Traweek Middle
West Covina
61479.3%37.7%
Granger Junior High
National City
72476.4%34.9%
Corona Fundamental Intermediate
Corona
75480.1%50.4%
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 Lorbeer Middle ranks

Among middle schools
MeasureThis schoolIn CaliforniaIn Los Angeles County
State test proficiency
ranked highest first
37.5%#573 of 1,224#128 of 248
Math proficiency
ranked highest first
30.6%#589 of 1,227
▲ 10
#130 of 248
▼ 1
Reading proficiency
ranked highest first
47.4%#543 of 1,227
▲ 17
#118 of 248
▲ 3
3-year test score change
ranked biggest drop first
-1.5pp#241 of 1,214#31 of 247
Enrollment
ranked largest first
688#618 of 1,377#138 of 317
Students per teacher
ranked fewest first
24.1:1#1,086 of 1,279#235 of 301
Diversity index
ranked most diverse first
43.8%#768 of 1,278#129 of 301
Free and reduced lunch
ranked highest share first
74.3%#660 of 1,329#216 of 312
Enrollment change since 2017-18
ranked steepest decline first
-1.3%#908 of 930#210 of 213
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
688
+28 (+4%) vs 2020
+16% since 1990-91, when it was 594
Student : Teacher
24.1:1
was 22.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2568828.624.1:174% (511)
2023-2467629.622.9:176% (516)
2022-2362329.221.4:179% (491)
2020-216602922.8:175% (497)
2017-186973122.5:160% (418)
2015-167303123.6:156% (406)
2010-11728N/AN/A36% (264)
2000-019443924.2:117% (158)
1990-915942227.0:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Lorbeer Middle.

Since 2017-18: students down 1% (697 to 688); teachers down 8% (31 to 28.6).

About Lorbeer Middle

Lorbeer Middle is a medium-sized middle school located in Diamond Bar, California. A federal count lists 688 students at the school, in grades 7 through 8.

The 37 schools in Pomona Unified enroll 20,422 students altogether, Lorbeer Middle among them.

Hispanic students make up a majority at Lorbeer Middle, at 73%. Next come 13% Asian, 5% multiracial, 5% White, and 4% Black. That compares with about 48% Hispanic among all Los Angeles County residents. Lorbeer Middle's diversity index is 44%, against a US figure of 70%.

Teacher staffing is 28.6 full-time equivalents, or about 24.1 students per teacher. This ratio sits 3.4 above the 20.7:1 average for middle schools in California. Eligibility for subsidized school meals is 74%.

Measured against California public middle schools, Lorbeer Middle receives a B-. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.

Lorbeer Middle's actual average proficiency rate on state tests (37.5%) and its predicted rate (36.0%) put it outside the top and bottom 10% of California schools.

Across Los Angeles County, the median household income is $90,112, roughly 36% of adults have a four-year degree or more, and about 10% of residents live below the federal poverty line. Los Angeles County is home to 2,244 public schools and about 1,265,907 public school students.

The nearest public school is Armstrong Elementary, at about 0.6 miles. Inside a five-mile radius, there are at least 8 other public schools. The nearest schools with test data average 63.7%, higher than Lorbeer Middle's 37.5%.

NCES lists the school's locale as Suburb: Large. That means it sits in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

The school enrolled 688 students in 2024-25, 28 more than the 660 it had in 2020-21. The student-to-teacher ratio went up from 22.8:1 to 24.1:1.

The discussion area below is open to posts about sports tryouts, band and choir, and theater. Questions from prospective families are welcome too.

Los Angeles County at a glance

View full county profile
Population
9,808,667
Census ACS
Median income
$90,112
Household, ACS
Bachelor's+
36%
Adults 25+
Poverty rate
10%
Below federal line
Schools in county
2,244
1,265,907 students

Quick facts

School name
Lorbeer Middle
District
Pomona Unified
Address
501 Diamond Bar Blvd., Diamond Bar, CA 91765
Phone
(909) 397-4527
County
Los Angeles County
Level
Middle
Grade range
07–08
Total enrollment
688
Teachers (FTE)
29
Student–teacher ratio
24.1:1
Free and reduced lunch
511 (74%)
Locale
21-Suburb: Large
NCES ID
063132004851
Charter school
No
Virtual school
No

Related schools

Other schools in Pomona Unified
Other schools in Diamond Bar
Nearby schools

Frequently asked questions

About Lorbeer Middle
How large is Lorbeer Middle?
Lorbeer Middle enrolls approximately 688 students in grades 07-08.
What age range does Lorbeer Middle serve?
Lorbeer Middle serves students from grade 07 through grade 08.
How many students per teacher at Lorbeer Middle?
Approximately 24.1:1 students per teacher at Lorbeer Middle.
What is the racial breakdown of students at Lorbeer Middle?
At Lorbeer Middle, the student body is approximately 5% White, 73% Hispanic, 4% Black, 13% Asian, 5% Two or more.
What district is Lorbeer Middle in?
Lorbeer Middle is part of Pomona Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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