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Foster City Elementary · Foster City

Foster City Elementary: The score is strong. The trajectory is stronger.

Foster City pairs 75% proficiency with gains that hold up when the same students are tracked two years apart — the rare school that posts both.

461 Beach Park Boulevard, 94404 (opens in new tab)·San Mateo-Foster City·Foster City·Grades TK-5·624 students·12% low-income·2024–25 CAASPP·(650) 312-7522·Website
2019–2025 trend · CDE CAASPP
This schoolCA avg
Scope7245
% Exceeded49%21%
% Met+75%43%
Growth+9.1-2.9
Absence8.1%17.9%
Suspension0.5%1.6%
Scope Score
72
🚀 Growth Engine · Strong
ranked #416 statewide · #3 of 18 in San Mateo-Foster City

Foster City Elementary scores 72 of 100 on SchoolScope's Scope Score — the 93rd percentile of 5,744 California elementary schools (CDE CAASPP 2025).

Measures test performance, attendance, and climate — not arts, community, or your kid. How we score →

🚀 Growth Engine — Ask how the school tracks each kid's growth year to year, and what happens when a kid stalls instead of gaining.

Most rating sites would stop at “75% proficient” and call it done. Foster City deserves a closer read. It sits at the 93rd percentile of 5,744 California elementary schools — but the ranking is the least interesting thing on this page.

The headline number: 49.3% of students scored in the top band on the state test. The California average is 21.3%.

The seven-year arc

Percentile among 5,744 elementary schools statewide

Has held the 93rd-percentile line every tested year since 2019.

CA Dashboard
ELAOrange(Declined Significantly)MathYellow(Declined Significantly)

This school hasn't fully recovered from the pandemic: 75% meet the standard today, versus 82% in 2019 — a gap worth asking about on a visit.

ELA — % met or exceeded, by grade
Grade20192022202320242025
Grade 381%81%75%71%65%
Grade 475%82%71%68%76%
Grade 584%81%84%83%80%
Math — % met or exceeded, by grade
Grade20192022202320242025
Grade 390%85%79%77%75%
Grade 481%85%80%80%75%
Grade 582%80%80%82%78%

The story this school is actually telling

The school, grade by grade

ELA · CAASPP 2024–25

Different students, same year — each bar is one grade's proficiency mix.

39%
26%
35%
Grade 3 · 65% proficient
49%
27%
24%
Grade 4 · 76% proficient
44%
36%
20%
Grade 5 · 80% proficient

The honest read: the share exceeding rises 5.1pp across grades; the floor rises 15.1pp. The state average rises 4.5pp over the same span. Kids here gain ground the longer they stay — the pattern you want to see. A school visit and conversation with teachers will tell you more than this number.

The 6 things our score weighs

Exceeded standard
49.3%
State 21.3%
28.0pp above state avg
Growth (G3→G5)
+9.1pp
State -2.9pp
Scores improve across grades
Met or exceeded
74.8%
State 42.7%
32.2pp above state avg
Chronic absenteeism
8.1%
State 17.9%
9.8pp below state avg
Suspension rate
0.5%
State 1.6%
1.1pp below state avg
EL proficiency (ELPAC)
32.7%
State 18.0%
14.7pp above state avg
Worth a school visit

Ask what changed — new curriculum, new principal, new program. Momentum has a cause, and a visit will find it.

  • Ask whether the tour can step into a working classroom — watch how the teacher handles a student who's stuck.
  • Ask to tour while school's in session, and notice how hallways and transitions feel — culture shows up between classes, not just in them.
  • Ask how the school communicates with families when a child starts to struggle.
  • Ask what a typical day looks like for a new student in the first few weeks.

How every group of students does here

At Foster City Elementary in Foster City, 43.8% of low-income students met or exceeded the ELA standard in 2025, compared to 26.5% district-wide and 38.2% statewide. Foster City Elementary outperforms its district average for low-income students by 17.3 percentage points in ELA. Other subgroups: Low-Income students (53.1% Math proficient); Asian students (81.7% ELA proficient). The largest proficiency gap is 26.2 percentage points for low-income students. Data source: California Department of Education, CAASPP 2024-25. 32 students tested.

All students at this school: 75% met or exceeded
All StudentsAll Students: this school 75%, district —, state 43%75%
MaleMale: this school 76%, district 50%, state 42%76% · +1 vs school
AsianAsian: this school 85%, district 84%, state 72%85% · +11 vs school
FemaleFemale: this school 73%, district 52%, state 44%73% · −1 vs school
WhiteWhite: this school 68%, district 70%, state 56%68% · −7 vs school
Two or More RacesTwo or More Races: this school 64%, district 68%, state 56%64% · −10 vs school
Socioeconomically DisadvantagedSocioeconomically Disadvantaged: this school 48%, district 25%, state 32%48% · −26 vs school
English LearnersEnglish Learners: this school 42%, district 8%, state 11%42% · −32 vs school
Students with DisabilitiesStudents with Disabilities: this school 27%, district 15%, state 15%27% · −48 vs school
Hispanic/LatinoHispanic/Latino: this school 54%, district 21%, state 32%54% · −21 vs school
Military-ConnectedMilitary-Connected: too few students to report‹11
FilipinoFilipino: too few students to report‹11
Black/African AmericanBlack/African American: too few students to report‹11
Pacific IslanderPacific Islander: too few students to report‹11
this school district, same group California, same group
Subgroup growth by grade

Change in proficiency from the lowest tested grade — which groups gain ground the longer they stay. Groups with fewer than 10 tested students per grade are not shown.

Showing up, and staying in class

Chronic absenteeismChronic absenteeism: this school 8.1%, district 16.6%, state 17.9%8.1% · −9.8pp vs state
Suspension rateSuspension rate: this school 0.5%, district —, state 1.6%0.5% · −1.1pp vs state

TK/K students miss school at roughly three times the rate of Grades 4–6 students (13.8% vs 4.4%). Chronic absence here concentrates in the earliest grades — worth asking how the school works with new families on attendance.

Chronic absenteeism by grade band
Grades 4–64.4%
TK/K13.8%

Where the path goes

The path below follows attendance boundaries — scores shown for each next step.

K-12 Feeder Path
Elementary
Foster City Elementary
72/100
This school
High School
No feeder data available for this level

Estimated path based on proximity within the same district. Contact your school district for official feeder information.

The people teaching here

Context — never part of the Scope Score
Student : teacherStudent to teacher ratio: this school 22:1, district 21:122:1
Teaching staff32 teachers
Avg. experience18.3 years
Fully credentialed95%
First-year teachers3%
Salary Schedule
Teacher salary schedule$65,604 – $128,965
Principal salary$189,953 – $0
Superintendent salary$376,500

Pay is set by the district, not the school.

What gets spent here

Per-pupil spendingPer-pupil spending: $22,430, CA average $14,815$22,430 · spent at this school
Federal share$1,001 per student

$1,001 per student arrives as federal Title funding — a measure of concentrated need, not school quality.

District current expense · FY 2024–25$22,745 per student

The district's current expense of education per student, from CDE's annual SACS filing — the freshest district spending figure the state publishes.

Where the district's dollars go · FY 2024–25 · CDE SACS
Instruction63%
Instruction support11%
Student services9%
Administration8%
Buildings & maintenance8%

District-level, from the district's own SACS general-ledger filing — school-by-school breakdowns aren't published by the state.

district detail, 2016–2020 — the newest published
2020$15,293 per pupil
2019$13,645 per pupil
2018$12,968 per pupil
2017$12,491 per pupil
2016$11,067 per pupil

Source: NCES F-33 · Full district breakdown →

The neighborhood it serves

Asian57.2%
District 24.9% · CA 10.2%
White17.1%
District 16.3% · CA 19.9%
Other15.5%
District 16.6% · CA 9.0%
Hispanic9.6%
District 41.4% · CA 56.1%
Black0.5%
District 0.7% · CA 4.8%
Low IncomeFree/reduced lunch eligible 12.0% (52pp below CA avg)
Neighborhood — American Community Survey
Median income$192K · CA $85K
Median home value$1.71M · CA $659K
Bachelor's degree+74% · CA 35%
ZIP population35,881
Median age40 years

Source: U.S. Census Bureau, American Community Survey 5-year estimates (2024) · ZIP-level

Worth Knowing

Transitional kindergarten is offered here — confirmed by actual Census Day enrollment, not just the listed grade span.

On the state's science test (CAST), 56% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.

Frequently asked questions

Is Foster City Elementary a good elementary school?

Foster City Elementary has a Scope Score of 72 out of 100, placing it in the 93rd percentile of California elementary schools and ranked #416 statewide. 49.3% of students exceeded the state standard on the 2025 CAASPP assessment, which is 28.0 percentage points above the California average of 21.3%. The Scope Score weights 6 dimensions for elementary schools: exceeded standard (38%), grade 3-to-5 growth (27%), met or exceeded (proficient) (20%), chronic absenteeism (5%), suspension rate (5%), and ELPAC English Learner proficiency (5%). Data source: California Department of Education CAASPP 2025, analyzed by SchoolScope.

What are Foster City Elementary's CAASPP test scores?

On the 2025 CAASPP Smarter Balanced Assessment, 74.8% of students at Foster City Elementary met or exceeded the state standard in ELA and Math combined, and 49.3% exceeded it. The gap between those numbers matters: 25.6% of students are at the proficiency floor, while 49.3% pushed past it. Most rating sites report only the combined "proficient" number. SchoolScope surfaces the exceeded-vs-met split because it reveals whether a school's curriculum challenges students beyond minimum proficiency or paces toward it. 658 student-subject combinations were assessed.

How does Foster City Elementary rank in California?

Foster City Elementary ranks #416 among California elementary schools by Scope Score, placing it in the 93rd percentile. This ranking is based on a weighted composite of 2025 CAASPP test performance (exceeded and met rates), grade-level growth (Grade 3 to grade 5 growth), chronic absenteeism, and suspension rate. Unlike single-number ratings, the Scope Score shows what drives the ranking so parents can decide what matters most to their family. See full methodology.

Is Foster City Elementary getting better or worse?

Based on 2025 CAASPP data, proficiency at Foster City Elementary increases by 9.1 percentage points from Grade 3 to grade 5 growth. This upward trajectory suggests the school is adding measurable value — students leave with higher proficiency rates than they entered with. Growth trajectory is weighted at 15% in the elementary Scope Score because it measures what the school does, not just who walks in the door.

What is the attendance and school culture like at Foster City Elementary?

8.1% of students at Foster City Elementary are chronically absent (missing 10% or more of school days), which is better than the California average of 17.9%. The suspension rate is 0.5%, indicating a low-discipline-incident environment. SchoolScope includes these culture metrics in the Scope Score because they reflect day-to-day school experience in ways test scores alone cannot.

How does Foster City Elementary compare to other schools in Foster City?

Foster City Elementary scores 72/100 (93rd percentile) among California elementary schools. To compare with nearby schools, SchoolScope shows the same metrics side by side: exceeded rate, proficiency, growth trajectory, and school culture indicators. The school serves 624 students. Use the schools in Foster City page or the map view to compare all elementary schools nearby.

How does Foster City Elementary serve low-income and underrepresented students?

At Foster City Elementary in Foster City, 43.8% of low-income students met or exceeded the ELA standard in 2025, compared to 26.5% district-wide and 38.2% statewide. Foster City Elementary outperforms its district average for low-income students by 17.3 percentage points in ELA. Other subgroups: Low-Income students (53.1% Math proficient); Asian students (81.7% ELA proficient). The largest proficiency gap is 26.2 percentage points for low-income students. Data source: California Department of Education, CAASPP 2024-25. 32 students tested. SchoolScope shows disaggregated test scores by demographic subgroup so you can see how a school performs for your child's specific group — not just the school-wide average. Subgroup data is context, not part of the Scope Score: we don't penalize schools for who they serve. See our equity approach.

Your other options

Private alternatives nearby

Private schools within ~10 miles. These schools do not participate in state testing and cannot be scored or ranked.


For the data nerds

Every number on this page

Score factors, grade-level breakdowns, subgroup proficiency, and peer comparisons.

01Score factorsWeighted composite · 2024–25
Exceeded standard · 38%
49.3%
↑ vs CA 21.3% · 77th pctile
Growth (G3→G5) · 27%
+9.1pp
↑ vs CA -2.9pp · 58th pctile
Met or exceeded · 20%
74.8%
↑ vs CA 42.7% · 75th pctile
Chronic absenteeism · 5%
8.1%
↑ vs CA 17.9% · 66th pctile
Suspension rate · 5%
0.5%
↑ vs CA 1.6% · 59th pctile
EL proficiency (ELPAC) · 5%
32.7%
↑ vs CA 18.0% · 71th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
ELATestedEXCMETNEARNOTMET++/CA
Grade 311139%26%14%21%65%+21
Grade 411249%27%12%13%76%+31
Grade 510544%36%11%9%80%+32
MathTestedEXCMETNEARNOTMET++/CA
Grade 311251%24%13%12%75%+29
Grade 411352%23%19%6%75%+34
Grade 510561%17%14%8%78%+43
Science (CAST)TestedEXCMETNEARNOT
Grade 5/8/1110530%26%37%7%

CAST is tested in grades 5, 8, and once in high school — not annually. Not part of the Scope Score.

Subgroup · ELATestedMET+vs districtvs CA
Socioeconomically Disadvantaged3243.8%+17+6
Asian16481.7%−1+7
White7768.8%−3+7
03Peer comparison · nearest elementary schoolssorted by Scope Score
SchoolDistScopeEXCMET+GrowthSusp
Foster City Elementary ←7249.3%74.8%+9.10.5%
College Park Elementary1.5 mi9161.2%82.7%+2.60.1%
Central Elementary1.6 mi8774.3%89.7%−6.60.9%
Cipriani Elementary2.7 mi7353.3%77.0%+4.40.3%
California average4521.3%42.7%−2.91.6%
04More measurescontext · not all part of the Scope Score
YearScopePctileRankExcMet+AbsentSuspGrowth
20197896#23360.6%82.0%1.6%0.3%-2.4pp
20227597#19860.5%82.4%18.7%0.1%-2.3pp
20238097#15158.1%78.1%10.9%0.0%+5.3pp
20247192#43853.5%76.9%9.4%0.4%+8.7pp
20257293#41649.3%74.8%8.1%0.5%+9.1pp
NO STATEWIDE TESTING 2020–21 (COVID) · SCORE AND PERCENTILE ARE RELATIVE TO EACH YEAR'S FIELD
05Climate by student groupchronic absenteeism · 2019 vs 2025 — the two years CDE publishes at subgroup level
Group20192025Δ
Female1.0%8.1%+7.1pp
Male2.0%7.5%+5.5pp
Asian1.4%5.3%+3.9pp
White0.0%5.9%+5.9pp
Hispanic/Latino2.8%14.1%+11.3pp
Two or More Races2.3%5.3%+3.0pp
Students with Disabilities6.2%14.3%+8.1pp
English Learners2.6%18.3%+15.7pp
Socioeconomically Disadvantaged7.1%23.8%+16.7pp
All Students1.5%7.7%+6.2pp
Filipino7.1%
EXC = exceeded standard · MET+ = met or exceeded ("proficient") · Source: CA Dept. of Education · CAASPP 2024–25 · n=5,744 elementary schools · Vintages: climate subgroups 2019+2025 · district finance per its label · ACS 2022 · Data updated 2026-07-03methodology · data updates · CSV · report issue

SchoolScope scores and verdicts are our interpretation of public California Department of Education data — independent analysis, not an official rating. How we analyze · Request a correction