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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
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
3
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Kindergarten
120
Grade 1
70
Grade 2
77
Grade 3
67
Grade 4
89
Grade 5
79
Student demographics
White
92%
DISTRICT 19% · STATE 20%
Hispanic
46993%
DISTRICT 46% · STATE 56%
Black
10%
DISTRICT 1% · STATE 5%
Asian
82%
DISTRICT 25% · STATE 12%
Two+
143%
DISTRICT 7% · STATE 6%
Native American
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. 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%

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Test scores

CAASPP 2023-24 . % met or exceeded standard
English Language Arts
25.9%
CA avg 47.1% . +6.9pp since 2014
Math
22.1%
CA avg 35.6% . +4.1pp since 2014

What this means: On the CAASPP, California's statewide test, about 26 of every 100 students at this school read and write at grade level and about 22 of 100 do math at grade level. Across all California schools, those numbers are about 47 and 36. Reading and writing scores are up about 7 points since 2014, while math scores are up about 4 points.

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
23.9%
composite math + reading, all grades
Predicted
21.7%
based on CA schools with similar FRL share
Beats by
+2.2pp
above demographic expectation

What this means: About 24% of students here test proficient in math and reading, compared with the roughly 22% 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 →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
502
-150 (-23%) vs 2017
Student : Teacher
26.4:1
was 28.4:1
% White
2%
was 1%
% Hispanic
93%
was 95%
% Black
0%
was 1%
% Asian
2%
was 2%
Source: NCES Common Core of Data

About Robert Heideman Elementary

Robert Heideman Elementary is a reasonably sized primary school in Tustin, California, run under Tustin Unified. The school enrolls 502 students in grades K through 5.

Tustin Unified comprises 28 schools with combined enrollment of 21,220 students; Robert Heideman Elementary is among them.

On demographics, Robert Heideman Elementary lists that 93% of students identify as Hispanic, making the school strongly Hispanic-majority. Beyond that, the school lists 3% multiracial. By comparison, Orange County as a whole is about 34% Hispanic, so the school skews visibly more Hispanic than its surroundings.

In terms of school funding signals, On paper, Robert Heideman Elementary has 19 full-time-equivalent teachers, translating to a class-load average of around 26.4:1. The state averages around 22.3:1, so this campus is higher than the state norm typical. Around 97% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator. That share is noticeably above Orange County's rate of about 55%.

On a residual basis (actual vs predicted given the student mix), Robert Heideman Elementary tracks the demographic baseline. The model predicts 21.7% given the school's FRL share; actual proficiency is 23.9%.

Zooming out to the county, Orange County reports that median household earnings sit near $116,289, about 44% of the adult population holds a bachelor's degree or above, and roughly 7% of residents live below the federal poverty line. Across Orange County's 649 public schools (combined enrollment of about 430,458 students), Robert Heideman Elementary is one campus in the mix.

The closest other public school is Raymond A. Villa Fundamental Intermediate, roughly 0.6 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Robert Heideman Elementary at 2nd of 8; the average score across the group is 19.6%.

The campus sits in a metropolitan setting.

Trend over the last 7 years. Robert Heideman Elementary's enrollment has declined 23% since 2018, when it stood at 652 (now 502). Class-load math has tightened: from 28.4:1 in 2018 to 26.4:1 in 2025.

On this page, recent activity here tends to focus on sports schedules, lunch menu changes, and school spirit week. 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/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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