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SCHOOL COMMUNITY·MT. DIABLO UNIFIED·NCES 062637003975

Sun Terrace Elementary

2448 Floyd Ln., Concord, CA 94520 · (925) 682-4861 · Contra Costa County
GRADES KG–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL418 STUDENTS
C-
allk12 Grade
Scored higher than 17% of California public elementary 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.
  • 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
418
Elementary
DISTRICT 480 · STATE 465
Student : Teacher
25.5:1
16 FTE teachers
DISTRICT 25.3:1 · STATE 22.3:1
Free / Reduced Lunch
74%
309 students
DISTRICT 56% · STATE 65%
Community
5
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
Kindergarten8821%
Grade 16115%
Grade 26115%
Grade 35914%
Grade 47518%
Grade 57418%

This year's kindergarten class (88) is 19% larger than its 5th grade class (74).

Student demographics
60%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 71% · STATE 62% · US 70%
White
6415%
DISTRICT 27% · STATE 20% · US 43%
Hispanic
25060%
DISTRICT 42% · STATE 56% · US 30%
Black
195%
DISTRICT 3% · STATE 5% · US 15%
Asian
348%
DISTRICT 14% · STATE 12% · US 6%
Two+
379%
DISTRICT 12% · STATE 6% · US 5%
Pacific Islander
133%
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
21451%
Female
20349%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
32.7%
CA avg 49.1% . +12.7pp since 2014
Math
19.9%
CA avg 37.7% . +6.9pp since 2014

What this means: On the CAASPP, California's statewide test, about 33 of every 100 students at this school read and write at grade level and about 20 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 13 points since 2014, while math scores are up about 7 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts13.5%19.2%17.8%49.5%
Math5.8%14.1%25.7%54.4%
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
2024-2532.7%19.9%
2023-2418.2%16.4%
2022-2322.6%21.3%
2021-2216.4%7.8%
2020-2121.0%11.6%
2018-1923.4%19.1%
2017-1835.1%19.2%
2016-1727.4%16.9%
2015-1622.0%16.0%
2014-1520.0%13.0%
% 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
21.9%
composite math + reading, all grades
Predicted
36.2%
based on CA schools with similar FRL share
Beats by
-14.3pp
below demographic expectation

What this means: About 22% 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 Sun Terrace Elementary

Sun Terrace Elementary's state test result (21.9% proficient) is higher than 1 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Sun Terrace Elementary this school41873.9%21.9%
Andasol Avenue Elementary
Northridge
41175.7%50.1%
McCardle Elementary
Fresno
46376.9%34.5%
Tulsa Street Elementary
Granada Hills
40676.6%42.6%
Rancho Cordova Elementary
Rancho Cordova
40777.6%19.4%
Wright Charter
Santa Rosa
45677.9%25.4%
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 Sun Terrace Elementary ranks

Among elementary schools
MeasureThis schoolIn CaliforniaIn Contra Costa County
State test proficiency
ranked highest first
21.9%#4,392 of 5,151#109 of 149
Math proficiency
ranked highest first
19.9%#4,314 of 5,172
▲ 238
#113 of 153
▲ 10
Reading proficiency
ranked highest first
32.7%#3,709 of 5,172
▲ 1,151
#105 of 153
▲ 27
3-year test score change
ranked biggest gain first
+14.2pp#217 of 5,116#4 of 150
Enrollment
ranked largest first
418#3,456 of 5,915#113 of 164
Students per teacher
ranked fewest first
25.5:1#4,662 of 5,352#138 of 162
Diversity index
ranked most diverse first
59.9%#1,829 of 5,354#106 of 162
Free and reduced lunch
ranked highest share first
73.9%#2,698 of 5,625#43 of 158
Enrollment change since 2017-18
ranked steepest decline first
-14.0%#2,151 of 3,837#48 of 107
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
418
-23 (-5%) vs 2020
-37% since 1990-91, when it was 666
Student : Teacher
25.5:1
was 24.5:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2541816.425.5:174% (309)
2023-2440217.423.1:172% (289)
2022-2336413.527.0:153% (194)
2020-214411824.5:163% (278)
2017-1848623.520.7:175% (365)
2015-165542324.1:172% (397)
2010-11548N/AN/A69% (379)
2000-017553621.0:141% (307)
1990-916662625.6:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Sun Terrace Elementary.

Since 2017-18: students down 14% (486 to 418); teachers down 30% (23.5 to 16.4).

About Sun Terrace Elementary

Sun Terrace Elementary is a mid-sized elementary school in Concord, California, one of the schools in Mt. Diablo Unified. Federal data show 418 students enrolled in kindergarten through 5 in 2024-25.

Sun Terrace Elementary is among 50 schools run by Mt. Diablo Unified, which serves 29,210 students.

Hispanic students are 60% of those enrolled at Sun Terrace Elementary. Other reported shares: 15% White, 9% multiracial, 8% Asian, and 5% Black. That compares with about 28% Hispanic among all Contra Costa County residents. A diversity index of 60% means there is a 60% chance two randomly chosen students at Sun Terrace Elementary are from different groups.

There are 16.4 full-time-equivalent teachers at the school, a ratio of 25.5:1. The average for elementary schools in California, 22.3:1, is lower. Of all students at Sun Terrace Elementary, 74% are eligible for free or reduced-price lunch. Compared with the 45% average for public schools in Contra Costa County, the school's rate is higher.

On the allk12 Grade, Sun Terrace Elementary lands at C-, ahead of 17% of California public elementary schools.

A school with Sun Terrace Elementary's lunch-eligibility share in California is predicted to score 36.2%. Sun Terrace Elementary scores 21.9%, 14.3 points below that line.

The school's county is Contra Costa County. According to Census Bureau estimates, the median household earns about $127,229 a year, a bachelor's degree or higher is held by about 45% of adults, and the poverty rate is about 6%. Sun Terrace Elementary shares Contra Costa County with 279 other public schools.

The closest school to Sun Terrace Elementary is Glenbrook Academy, located about 0.5 miles away. There are at least 8 more public schools inside five miles. Nearby schools average 25.1% on proficiency, and Sun Terrace Elementary is below that at 21.9%.

Its location is classified as Suburb: Large by the National Center for Education Statistics.

In 2024-25, the school enrolled 418, down from 441 in 2020-21. The school's ratio increased from 24.5:1 to 25.5:1 between 2020-21 and 2024-25.

The discussion board for Sun Terrace Elementary is open to topics like 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
Sun Terrace Elementary
District
Mt. Diablo Unified
Address
2448 Floyd Ln., Concord, CA 94520
Phone
(925) 682-4861
County
Contra Costa County
Level
Elementary
Grade range
KG–05
Total enrollment
418
Teachers (FTE)
16
Student–teacher ratio
25.5:1
Free and reduced lunch
309 (74%)
Locale
21-Suburb: Large
NCES ID
062637003975
Charter school
No
Virtual school
No

Related schools

Other schools in Mt. Diablo Unified
Other schools in Concord
Nearby schools

Frequently asked questions

About Sun Terrace Elementary
How many students attend Sun Terrace Elementary?
Sun Terrace Elementary enrolls approximately 418 students in grades KG-05.
What age range does Sun Terrace Elementary serve?
Sun Terrace Elementary serves students from grade KG through grade 05.
How many teachers does Sun Terrace Elementary have?
Sun Terrace Elementary employs 16 FTE teachers, for a student-to-teacher ratio of 25.5:1.
What is the racial breakdown of students at Sun Terrace Elementary?
At Sun Terrace Elementary, the student body is approximately 15% White, 60% Hispanic, 5% Black, 8% Asian, 9% Two or more.
Who oversees Sun Terrace Elementary?
Sun Terrace Elementary 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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