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SCHOOL COMMUNITY·TUSTIN UNIFIED·NCES 064015006639

Robert Heideman Elementary

15571 Williams St., Tustin, CA 92780 · (714) 730-7521 · Orange County
GRADES KG–05ELEMENTARY13-CITYTITLE IREGULAR SCHOOL502 STUDENTS
C+
allk12 Grade
Scored higher than 44% of California public elementary schools
  • C-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • BBeats 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 elementary schools

Enrollment
502
Elementary
DISTRICT 571 · STATE 465
Student : Teacher
26.4:1
19 FTE teachers
DISTRICT 26.0:1 · STATE 22.3:1
Free / Reduced Lunch
97%
487 students
DISTRICT 56% · STATE 65%
Community
6
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Kindergarten12024%
Grade 17014%
Grade 27715%
Grade 36713%
Grade 48918%
Grade 57916%

This year's kindergarten class (120) is 52% larger than its 5th grade class (79).

Student demographics
13%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 68% · STATE 62% · US 70%
White
92%
DISTRICT 19% · STATE 20% · US 43%
Hispanic
46993%
DISTRICT 46% · STATE 56% · US 30%
Black
10%
DISTRICT 1% · STATE 5% · US 15%
Asian
82%
DISTRICT 25% · STATE 12% · US 6%
Two+
143%
DISTRICT 7% · STATE 6% · US 5%
Native American
10%
DISTRICT 0% · STATE 0% · US 1%
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
26453%
Female
23847%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
27.9%
CA avg 49.1% . +8.9pp since 2014
Math
29.2%
CA avg 37.7% . +11.2pp since 2014

What this means: On the CAASPP, California's statewide test, about 28 of every 100 students at this school read and write at grade level and about 29 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 9 points since 2014, while math scores are up about 11 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts11.4%16.5%21.9%50.2%
Math10.4%18.8%34.6%36.3%
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
2024-2527.9%29.2%
2023-2425.9%22.1%
2022-2318.0%15.6%
2021-2218.5%12.7%
2018-1926.8%18.6%
2017-1826.8%21.5%
2016-1723.2%18.0%
2015-1623.0%20.0%
2014-1519.0%18.0%
% 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
26.4%
composite math + reading, all grades
Predicted
22.7%
based on CA schools with similar FRL share
Beats by
+3.7pp
above demographic expectation

What this means: About 26% of students here test proficient in math and reading, compared with the roughly 23% 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 Robert Heideman Elementary

Robert Heideman Elementary's state test result (26.4% proficient) is higher than 4 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Robert Heideman Elementary this school50297.0%26.4%
Oasis Elementary
Thermal
48897.1%12.9%
La Granada Elementary
Riverside
52496.0%21.1%
West Putnam Elementary
Porterville
47896.4%24.5%
Calabasas Elementary
Watsonville
51297.1%14.2%
Florence Avenue Elementary
Los Angeles
48997.3%37.7%
Matched among California elementary 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 Robert Heideman Elementary ranks

Among elementary schools
MeasureThis schoolIn CaliforniaIn Orange County
State test proficiency
ranked highest first
26.4%#3,925 of 5,151#337 of 381
Math proficiency
ranked highest first
29.2%#3,310 of 5,172
▲ 627
#305 of 382
▲ 36
Reading proficiency
ranked highest first
27.9%#4,191 of 5,172
▲ 27
#350 of 382
▲ 1
3-year test score change
ranked biggest gain first
+12.9pp#319 of 5,116#12 of 381
Enrollment
ranked largest first
502#2,415 of 5,915#183 of 404
Students per teacher
ranked fewest first
26.4:1#4,991 of 5,352#324 of 398
Diversity index
ranked most diverse first
12.6%#4,818 of 5,354#357 of 398
Free and reduced lunch
ranked highest share first
97.0%#202 of 5,625#5 of 400
Enrollment change since 2017-18
ranked steepest decline first
-23.0%#1,091 of 3,837#113 of 324
Ranked against other public elementary 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
502
-58 (-10%) vs 2020
-1% since 1990-91, when it was 509
Student : Teacher
26.4:1
was 28.0:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-255021926.4:197% (487)
2023-244901925.8:197% (473)
2022-235041828.0:193% (468)
2020-215602028.0:190% (503)
2017-186522328.4:171% (463)
2015-166412229.1:193% (593)
2010-11504N/AN/A89% (448)
2000-015702721.1:172% (409)
1990-915091631.8:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Robert Heideman Elementary.

Since 2017-18: students down 23% (652 to 502); teachers down 17% (23 to 19).

About Robert Heideman Elementary

Robert Heideman Elementary is a medium-sized elementary school based in Tustin, California. The school's 502 students are in kindergarten through 5.

Tustin Unified, which runs Robert Heideman Elementary, has 28 schools and 21,220 students.

At Robert Heideman Elementary, Hispanic students make up 93% of the student body. It is also 3% multiracial. Orange County's residents are about 34% Hispanic, 59 points below the school's share. The chance that two students picked at random at Robert Heideman Elementary belong to different racial or ethnic groups, known as the diversity index, is 13%.

Teachers at Robert Heideman Elementary total 19 full-time equivalents, and the ratio is 26.4:1. The 22.3:1 average for elementary schools in California is lower than this school's figure. The school counts 487 students as eligible for free or reduced-price lunch, or 97%. Compared with the 55% average for public schools in Orange County, the school's rate is higher.

allk12 grades Robert Heideman Elementary a C+. The grade compares the school only with California public elementary schools, because each state gives its own test.

The model predicts 22.7% for a school in California with Robert Heideman Elementary's free or reduced-price lunch share. Robert Heideman Elementary posts 26.4%.

Federal survey data for Orange County show that median household income is about $116,289, a bachelor's degree or higher is held by about 44% of adults, and the share of residents below the poverty line is 7%. A total of 649 public schools operate in Orange County, serving about 430,458 students.

The closest other public school is Raymond A. Villa Fundamental Intermediate, about 0.6 miles away. There are at least 8 other public schools within five miles. Ranking the closest schools with test data puts Robert Heideman Elementary at 2nd of 8.

Robert Heideman Elementary is inside a principal city with a population under 100,000, a location NCES labels City: Small.

The student count in 2024-25 was 502, 10% below the 560 of 2020-21. The number of students per teacher fell from 28.0 to 26.4 over 4 years.

If you have questions about sports schedules, lunch menus, and spirit week at Robert Heideman Elementary, you can post them here. Posting is open to anyone connected to the school.

Orange County at a glance

View full county profile
Population
3,165,820
Census ACS
Median income
$116,289
Household, ACS
Bachelor's+
44%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
649
430,458 students

Quick facts

School name
Robert Heideman Elementary
District
Tustin Unified
Address
15571 Williams St., Tustin, CA 92780
Phone
(714) 730-7521
County
Orange County
Level
Elementary
Grade range
KG–05
Total enrollment
502
Teachers (FTE)
19
Student–teacher ratio
26.4:1
Free and reduced lunch
487 (97%)
Locale
13-City: Small
NCES ID
064015006639
Charter school
No
Virtual school
No

Related schools

Other schools in Tustin Unified
Other schools in Tustin
Nearby schools

Frequently asked questions

About Robert Heideman Elementary
How large is Robert Heideman Elementary?
Robert Heideman Elementary enrolls approximately 502 students in grades KG-05.
Is Robert Heideman Elementary an elementary, middle, or high school?
Robert Heideman Elementary is an elementary school covering grades KG-05.
How many teachers does Robert Heideman Elementary have?
Robert Heideman Elementary employs 19 FTE teachers, for a student-to-teacher ratio of 26.4:1.
How diverse is Robert Heideman Elementary?
Robert Heideman Elementary reports a student body of 2% White, 93% Hispanic, 0% Black, 2% Asian, 3% Two or more.
What district is Robert Heideman Elementary in?
Robert Heideman Elementary is part of Tustin Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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