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SCHOOL COMMUNITY·SAN DIEGO UNIFIED·NCES 063432005462

Foster Elementary

6550 51st St., San Diego, CA 92120 · (619) 510-4100 · San Diego County
GRADES KG–05ELEMENTARY11-CITYTITLE IREGULAR SCHOOL518 STUDENTS
C
allk12 Grade
Scored higher than 31% 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.
  • C-Beats 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 elementary schools

Enrollment
518
Elementary
DISTRICT 416 · STATE 465
Student : Teacher
23.8:1
22 FTE teachers
DISTRICT 23.6:1 · STATE 22.3:1
Free / Reduced Lunch
59%
307 students
DISTRICT 63% · 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
Kindergarten13125%
Grade 17514%
Grade 28817%
Grade 36813%
Grade 46412%
Grade 59218%

This year's kindergarten class (131) is 42% larger than its 5th grade class (92).

Student demographics
73%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 71% · STATE 62% · US 70%
White
14929%
DISTRICT 24% · STATE 20% · US 43%
Hispanic
20239%
DISTRICT 45% · STATE 56% · US 30%
Black
5110%
DISTRICT 7% · STATE 5% · US 15%
Asian
398%
DISTRICT 14% · STATE 12% · US 6%
Two+
7414%
DISTRICT 9% · STATE 6% · US 5%
Native American
31%
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
27152%
Female
24748%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
40.4%
CA avg 49.1% . -10.6pp since 2014
Math
33.5%
CA avg 37.7% . +4.5pp since 2014

What this means: On the CAASPP, California's statewide test, about 40 of every 100 students at this school read and write at grade level and about 34 of 100 do math at grade level. Across all California schools, those numbers are about 49 and 38. Reading and writing scores are down about 11 points since 2014, while math scores are up about 5 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts19.7%20.7%25.1%34.5%
Math14.6%18.9%29.1%37.4%
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
2024-2540.4%33.5%
2023-2431.1%31.3%
2022-2336.0%30.8%
2021-2235.9%25.8%
2018-1951.9%46.4%
2017-1855.0%48.4%
2016-1749.7%39.0%
2015-1656.0%41.0%
2014-1551.0%29.0%
% 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
34.2%
composite math + reading, all grades
Predicted
44.8%
based on CA schools with similar FRL share
Beats by
-10.6pp
below demographic expectation

What this means: About 34% of students here test proficient in math and reading, compared with the roughly 45% 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 Foster Elementary

Foster Elementary's state test result (34.2% proficient) is higher than 1 of the 4 schools below with a result.

SchoolStudentsLow-incomeProficient
Foster Elementary this school51859.3%34.2%
George C. Marshall Elementary
Seaside
51655.4%36.9%
Mira Vista Elementary
Richmond
51057.3%37.6%
North Country Elementary
Antelope
56361.1%30.0%
Maryland Avenue Elementary
La Mesa
45158.5%49.6%
Congressman Jerry Lewis Elementary
Fort Irwin
51063.1%N/A
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 Foster Elementary ranks

Among elementary schools
MeasureThis schoolIn CaliforniaIn San Diego County
State test proficiency
ranked highest first
34.2%#3,044 of 5,151#268 of 392
Math proficiency
ranked highest first
33.5%#2,875 of 5,172
▲ 69
#253 of 393
▲ 1
Reading proficiency
ranked highest first
40.4%#2,894 of 5,172
▲ 780
#263 of 393
▲ 47
3-year test score change
ranked biggest gain first
+6.1pp#1,352 of 5,116#88 of 387
Enrollment
ranked largest first
518#2,222 of 5,915#168 of 453
Students per teacher
ranked fewest first
23.8:1#3,561 of 5,352#259 of 418
Diversity index
ranked most diverse first
72.9%#303 of 5,354#23 of 418
Free and reduced lunch
ranked highest share first
59.3%#3,510 of 5,625#220 of 442
Enrollment change since 2017-18
ranked fastest growth first
+36.0%#96 of 1,139#7 of 97
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
518
+123 (+31%) vs 2020
-6% since 1990-91, when it was 554
Student : Teacher
23.8:1
was 20.8:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2551821.823.8:159% (307)
2023-245022420.9:153% (266)
2022-234822024.1:158% (281)
2020-213951920.8:142% (164)
2017-183811623.8:157% (216)
2015-163801623.8:159% (225)
2010-11430N/AN/A67% (286)
2000-015863019.5:137% (215)
1990-915541929.2:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Foster Elementary.

Since 2017-18: students up 36% (381 to 518); teachers up 36% (16 to 21.8).

About Foster Elementary

In San Diego, California, Foster Elementary is a mid-sized elementary school. It is open to students in kindergarten through 5 and enrolls 518 students.

Foster Elementary is part of San Diego Unified, where 174 schools serve 94,828 students.

The biggest share of students at Foster Elementary, 39%, is Hispanic. Next come 29% White, 14% multiracial, 10% Black, and 8% Asian. The diversity index for Foster Elementary is 73%. For US public schools as a whole it is 70%.

The school had 21.8 full-time-equivalent teachers in 2024-25. Its student-to-teacher ratio is 23.8:1. By comparison, the average for elementary schools in California is 22.3:1. The school reported 59% of students eligible for free or reduced-price lunch in 2024-25.

On the allk12 Grade, Foster Elementary lands at C, ahead of 31% of California public elementary schools.

Foster Elementary's average proficiency rate across its state test results of 34.2% is 10.6 points below the 44.8% the model predicts from its lunch-eligibility share.

The school's county is San Diego County. According to Census Bureau estimates, median household income comes to about $106,268, the share of adults with a bachelor's degree or higher is 43%, and roughly 7% of residents are in poverty. There are 766 public schools in the county, enrolling about 467,437, Foster Elementary among them.

Foster Elementary is about 0.2 miles from Magnolia Science Academy San Diego, its nearest public school. Around the school, at least 8 other public schools are within five miles. Its average proficiency rate of 34.2% is below the 65.0% average for nearby schools.

Foster Elementary is coded as City: Large in federal locale data.

The school's enrollment rose 31% from 2020-21 to 2024-25. In 2020-21, the student-to-teacher ratio was 20.8:1; by 2024-25 it was 23.8:1.

The allk12 page for Foster Elementary lets the school community talk about pickup and drop-off, after-school programs, and teacher feedback. You can also rate the school on this page.

San Diego County at a glance

View full county profile
Population
3,288,774
Census ACS
Median income
$106,268
Household, ACS
Bachelor's+
43%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
766
467,437 students

Quick facts

School name
Foster Elementary
District
San Diego Unified
Address
6550 51st St., San Diego, CA 92120
Phone
(619) 510-4100
County
San Diego County
Level
Elementary
Grade range
KG–05
Total enrollment
518
Teachers (FTE)
22
Student–teacher ratio
23.8:1
Free and reduced lunch
307 (59%)
Locale
11-City: Large
NCES ID
063432005462
Charter school
No
Virtual school
No

Related schools

Other schools in San Diego Unified
Other schools in San Diego
Other Foster Elementary schools

10 other US public schools in 5 states are named Foster Elementary. Foster Elementary is the 2nd largest of the 11.

Nearby schools

Frequently asked questions

About Foster Elementary
How many students attend Foster Elementary?
Foster Elementary enrolls approximately 518 students in grades KG-05.
What age range does Foster Elementary serve?
Foster Elementary serves students from grade KG through grade 05.
How many students per teacher at Foster Elementary?
Approximately 23.8:1 students per teacher at Foster Elementary.
How diverse is Foster Elementary?
Foster Elementary reports a student body of 29% White, 39% Hispanic, 10% Black, 8% Asian, 14% Two or more.
What district is Foster Elementary in?
Foster Elementary is part of San Diego Unified.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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