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SCHOOL COMMUNITY·REDWOOD CITY ELEMENTARY·NCES 063213004973

Adelante Selby Spanish Immersion

170 Selby Ln., Atherton, CA 94027 · (650) 482-2415 · San Mateo County
GRADES KG–05ELEMENTARY21-SUBURBTITLE IREGULAR SCHOOL582 STUDENTS
B
allk12 Grade
Scored higher than 55% of California public elementary schools
  • BTest 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.
  • 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
582
Elementary
DISTRICT 507 · STATE 465
Student : Teacher
25.3:1
23 FTE teachers
DISTRICT 20.8:1 · STATE 22.3:1
Free / Reduced Lunch
60%
350 students
DISTRICT 62% · 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
Kindergarten15426%
Grade 110017%
Grade 29316%
Grade 38815%
Grade 48314%
Grade 56411%

This year's kindergarten class (154) is 141% larger than its 5th grade class (64).

Student demographics
32%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 54% · STATE 62% · US 70%
White
8014%
DISTRICT 22% · STATE 20% · US 43%
Hispanic
47481%
DISTRICT 64% · STATE 56% · US 30%
Black
31%
DISTRICT 1% · STATE 5% · US 15%
Asian
41%
DISTRICT 6% · STATE 12% · US 6%
Two+
203%
DISTRICT 7% · STATE 6% · US 5%
Pacific Islander
10%
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
28649%
Female
29651%

Discussions

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Test scores

CAASPP 2024-25 . % met or exceeded standard
English Language Arts
48.7%
CA avg 49.1% . +12.7pp since 2014
Math
40.1%
CA avg 37.7% . +14.1pp since 2014

What this means: On the CAASPP, California's statewide test, about 49 of every 100 students at this school read and write at grade level and about 40 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 14 points.

Performance levels, 2024-25

SubjectStandard ExceededStandard MetStandard Nearly MetStandard Not Met
English Language Arts25.6%23.0%20.4%30.9%
Math20.7%19.4%29.3%30.6%
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
2024-2548.7%40.1%
2023-2442.8%36.2%
2022-2348.5%33.3%
2021-2236.0%26.9%
2018-1943.4%35.5%
2017-1841.3%37.1%
2016-1741.1%28.5%
2015-1644.0%34.0%
2014-1536.0%26.0%
% 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
41.9%
composite math + reading, all grades
Predicted
44.3%
based on CA schools with similar FRL share
Beats by
-2.4pp
below demographic expectation

What this means: About 42% of students here test proficient in math and reading, compared with the roughly 44% 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 Adelante Selby Spanish Immersion

Adelante Selby Spanish Immersion's state test result (41.9% proficient) is higher than 2 of the 5 schools below with a result.

SchoolStudentsLow-incomeProficient
Adelante Selby Spanish Immersion this school58260.1%41.9%
San Martin Gwinn Environmental Science Academy
San Martin
64356.9%22.8%
Rio Vista Elementary
Fillmore
55357.3%33.3%
Raymond Elementary
Fullerton
59857.2%55.6%
Oak Valley Elementary
Tulare
56265.3%43.4%
Jordan Elementary
Whittier
51662.6%49.8%
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 Adelante Selby Spanish Immersion ranks

Among elementary schools
MeasureThis schoolIn CaliforniaIn San Mateo County
State test proficiency
ranked highest first
41.9%#2,314 of 5,151#67 of 96
Math proficiency
ranked highest first
40.1%#2,286 of 5,172
▲ 207
#69 of 96
▼ 1
Reading proficiency
ranked highest first
48.7%#2,143 of 5,172
▲ 302
#62 of 96
▲ 5
3-year test score change
ranked biggest gain first
+12.9pp#317 of 5,116#4 of 96
Enrollment
ranked largest first
582#1,552 of 5,915#11 of 106
Students per teacher
ranked fewest first
25.3:1#4,581 of 5,352#87 of 99
Diversity index
ranked most diverse first
31.7%#3,873 of 5,354#87 of 99
Free and reduced lunch
ranked highest share first
60.1%#3,475 of 5,625#27 of 103
Enrollment change since 2017-18
ranked steepest decline first
-20.2%#1,407 of 3,837#28 of 79
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
582
-70 (-11%) vs 2020
+4% since 1990-91, when it was 561
Student : Teacher
25.3:1
was 24.1:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-255822325.3:160% (350)
2023-245562324.2:162% (343)
2022-235452323.7:161% (330)
2020-216522724.1:156% (362)
2017-1872933.521.8:170% (512)
2015-166793121.9:171% (483)
2010-11715N/AN/A80% (574)
2000-017934218.9:164% (511)
1990-915612423.4:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Adelante Selby Spanish Immersion.

Since 2017-18: students down 20% (729 to 582); teachers down 31% (33.5 to 23).

About Adelante Selby Spanish Immersion

Adelante Selby Spanish Immersion is a medium-sized elementary school for students in Atherton, California. It educates 582 students in kindergarten through 5. The school's enrollment is 25% bigger than the 465 average for elementary schools in California.

Adelante Selby Spanish Immersion is part of Redwood City Elementary, where 12 schools serve 6,378 students.

Federal enrollment data show Adelante Selby Spanish Immersion is 81% Hispanic. Other groups include 14% White and 3% multiracial. The county population is about 25% Hispanic. Pick two students at random and there is a 32% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.

Adelante Selby Spanish Immersion counts 23 full-time-equivalent teachers, about 25.3 students for each one. On average, elementary schools in California have 22.3:1, compared with 25.3:1 here. About 60% of enrolled students meet the income rules for free or reduced-price lunch. Across public schools in San Mateo County, the average is 34%.

Measured against California public elementary schools, Adelante Selby Spanish Immersion 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.

When test results are adjusted for free or reduced-price lunch eligibility, Adelante Selby Spanish Immersion is 2.4 points below its prediction. Actual: 41.9%. Predicted: 44.3%.

San Mateo County has about 742,340 residents, and the median household income is $158,855, a bachelor's degree or higher is held by about 54% of adults, and the share of residents below the poverty line is 4%. In all, San Mateo County has 176 public schools and roughly 82,403 students.

Henry Ford Elementary is the closest public school, about 0.7 miles away in a straight line. Other public schools within five miles number at least 8. The school's 41.9% average proficiency ranks 4th among 7 nearby schools.

By NCES locale, the school is Suburb: Large, or in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Adelante Selby Spanish Immersion's enrollment dropped from 652 in 2020-21 to 582 in 2024-25. There were more students per teacher in 2024-25 (25.3:1) than in 2020-21 (24.1:1).

Threads on this page can be about sports schedules, lunch menus, and spirit week. Alumni can share how the school prepared them.

San Mateo County at a glance

View full county profile
Population
742,340
Census ACS
Median income
$158,855
Household, ACS
Bachelor's+
54%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
176
82,403 students

Quick facts

School name
Adelante Selby Spanish Immersion
District
Redwood City Elementary
Address
170 Selby Ln., Atherton, CA 94027
Phone
(650) 482-2415
County
San Mateo County
Level
Elementary
Grade range
KG–05
Total enrollment
582
Teachers (FTE)
23
Student–teacher ratio
25.3:1
Free and reduced lunch
350 (60%)
Locale
21-Suburb: Large
NCES ID
063213004973
Charter school
No
Virtual school
No

Related schools

Other schools in Redwood City Elementary
Other schools in Atherton
Nearby schools

Frequently asked questions

About Adelante Selby Spanish Immersion
How large is Adelante Selby Spanish Immersion?
Adelante Selby Spanish Immersion enrolls approximately 582 students in grades KG-05.
What age range does Adelante Selby Spanish Immersion serve?
Adelante Selby Spanish Immersion serves students from grade KG through grade 05.
What is the student-teacher ratio at Adelante Selby Spanish Immersion?
The student-to-teacher ratio at Adelante Selby Spanish Immersion is approximately 25.3:1 (23 FTE teachers).
What is the student diversity at Adelante Selby Spanish Immersion?
Student demographics at Adelante Selby Spanish Immersion are roughly 14% White, 81% Hispanic, 1% Black, 1% Asian, 3% Two or more.
Who oversees Adelante Selby Spanish Immersion?
Adelante Selby Spanish Immersion is overseen by Redwood City Elementary in San Mateo County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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