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Public elementary school

Isleton Elementary

Isleton, CA · Grades TK-6 · 188 students · River Delta Joint Unified

Most kids here clear the bar, year after year. The question is what happens after that.

63% of tested students are Proficient or Advanced in English and 65% in math. Explore the evidence alongside the opportunities your child would use.

SchoolScope archetype

Strong All-Around

What this means for your family

Ask about what we don't score — class size, electives, the feel of a classroom — strong numbers everywhere on paper don't mean every classroom feels the same.

How archetypes are assigned →

Contact

Math

65%

Grades 3 & 5 · Proficient or Advanced

English

63%

Grades 3 & 5 · Proficient or Advanced

Students

188

Total enrollment

Chronic absence

14%

Students absent 10% or more of school days

What are you trying to decide?

The overall score is a starting point.

Look at subject results, trends and student groups, then consider the opportunities your child would use.

View school performance →

Academic performance

What do the results tell us?

2025 results · Grades 3 & 5 · weighted by students tested within each subject.

Proficient or Advanced combines Levels 3 and 4, formerly Standard Met and Standard Exceeded. California changed the names for 2025–26; the cut scores did not. About the labels →

Share at Proficient or Advanced

0%25%50%75%100%2019: 66%2022: 42%2023: 52%2024: 48%2025: 65%2019: 56%2022: 46%2023: 60%2024: 55%2025: 63%201920222023202420250%25%50%75%100%2019: 66%2022: 42%2023: 52%2024: 48%2025: 65%2019: 56%2022: 46%2023: 60%2024: 55%2025: 63%20192022202320242025
● Math┄ English

Gaps in the lines mark years without annual results.

Exact annual results
YearMathEnglish
201966%56%
202242%46%
202352%60%
202448%55%
202565%63%

Each year describes that year’s tested students. Changes between years do not follow the same children over time. Cohort-growth evidence, when available, is labeled separately below.

Annual results and the full academic record
Is it getting better · CAASPP 2019 to 2025

Climbed from the 61st to the 86th percentile since 2019 — past roughly 1300 elementary schools.

Most rating sites would stop at “63% proficient” and call it done. Isleton deserves a closer read. Three in four of its students qualify for free or reduced lunch (California: 64%) — and reading the numbers without that context misreads the school.

Isleton's low-income kids hit 57.3% proficiency in ELA — a number the same group reaches at 38.2% statewide. If you're trying to read past zip-code-driven test scores, that's the signal worth weighing.

95 tested · 3 of 3 grades published · no cohort tracked

Isleton Elementary scores 59 of 100 on SchoolScope's Scope Score — the 86th percentile of 5,721 California elementary schools (CDE CAASPP 2025).

The pandemic drop is behind this school: 63% of students meet the standard today, above the 60% who did in 2019.

Percentile among 5,721 elementary schools statewide
Year detailsYear2019 · 61st percentile · Scope Score 42 of 1002022 · 69th percentile · Scope Score 43 of 1002023 · 55th percentile · Scope Score 36 of 1002024 · 75th percentile · Scope Score 49 of 1002025 · 86th percentile · Scope Score 59 of 100
ELAGreen(Maintained)MathYellow(Maintained)
ShowHide the by-grade tables, year by year
ELA — % met or exceeded, by grade
Grade20192022202320242025
Grade 350%22%55%50%61%
Grade 459%55%26%55%68%
Grade 561%71%65%59%65%
Grade 680%43%64%65%53%
Math — % met or exceeded, by grade
Grade20192022202320242025
Grade 365%17%45%59%61%
Grade 459%35%15%36%55%
Grade 567%67%58%40%70%
Grade 657%30%50%50%23%
Where students land · CAASPP 2024–25

Three in five of students here meet the standard. One in three clear it by a lot.

ELA61% met or exceeded
Exceeded 33%Met 28%Nearly Met 28%Not Met 11%
Math50% met or exceeded
Exceeded 28%Met 22%Nearly Met 31%Not Met 19%
Exceeded Met Nearly Met Not Met
California elementary schools · average21% exceeded · 43% met or exceeded
This school against the California average
2019–2025 trend · CDE CAASPP
Scope% Exceeded% Met+GrowthAbsenceSuspension
This school5938%63%13.6%1.4%
CA average · Elementary School3921%43%17.9%1.6%
This schoolCA avg
Scope5939
% Exceeded38%21%
% Met+63%43%
Growth
Absence13.6%17.9%
Suspension1.4%1.6%
California’s growth results and student groups
State growth model · CDE growth model 2024–25

California's own growth model places it near the 91st percentile of elementary schools.

Context — never part of the Scope Score

California runs its own growth model — it follows individual children in grades 4 through 8 and compares each one against a prediction from their own prior scores. On that measure this school sits well above the middle of California elementary schools in reading and math together. We show it; we don't score it.

pts vs expected is scale-score points above or below what California's model predicted for these same children from their own prior-year scores. It is not a percentage and not a percent of anything. A typical California elementary school lands at +2 in reading, and the middle half of them fall between −5 and +9 — the spread is wide, so read the rank, not the sign. CDE blends two consecutive years into each published figure, so adjacent years share input data and no year-over-year trend can honestly be drawn from them. It covers grades 4-8 only, and it is not part of the Scope Score — we assessed it and left it out: it tracks school demographics roughly three times as strongly as our own growth measure does, and one published year is not enough to test how stable it is.

California's growth model, ranked against the schools it scores
State model · readingmatched students, grades 4-8California growth model, reading: +23 scale-score points versus the state's expectation, 97th percentile of 7,519 reported schools.97th pctile · +23 pts
State model · mathmatched students, grades 4-8California growth model, math: +14 scale-score points versus the state's expectation, 84th percentile of 7,518 reported schools.84th pctile · +14 pts
this school| the tick is the middle of the California field

Students & opportunity

Who shares in the school’s results?

Who it works for · CAASPP 2024–25

Low-income students here meet the ELA standard ahead of the same group statewide.

57.3% of low-income students met or exceeded the ELA standard — versus 38.2% for the same group statewide. This comparison does not tell us what caused the difference.

Met or exceeded · reading and math combined
All students at this school: 55% met or exceeded
All StudentsAll Students: this school 55%, district —, state 43%55%
Socioeconomically DisadvantagedSocioeconomically Disadvantaged: this school 50%, district 26%, state 32%50% · −5 vs school
Hispanic/LatinoHispanic/Latino: this school 48%, district 24%, state 32%48% · −7 vs school
MaleMale: this school 57%, district 28%, state 42%57% · +1 vs school
FemaleFemale: this school 49%, district 28%, state 44%49% · −7 vs school
WhiteWhite: this school 64%, district 35%, state 56%64% · +9 vs school

7 of 13 student groups here are too small to report — a privacy protection, not a gap.

this school district, same group California, same group
ShowHide Student-group results by grade
Student-group results by grade

Results compare different grade groups in the same year, relative to the lowest tested grade. They do not track the same children over time. Groups with fewer than 10 tested students per grade are not shown.

Low-income student ELA proficiency rises by 8.2pp from grade 3 to grade 5 at this school. District average: -2.8pp.

ShowHide California's growth model by student group
The state's growth model, by student group

California follows these children individually and predicts each one's score from their own prior year. Each row is read against the same group at a typical California elementary school — not against zero, and not against this school's all-students figure, because the state's expectation already differs by group.

Reading
Low-income students55 studentsLow-income students, reading: +27 scale-score points versus expectation, against 0 for the same group at a typical California elementary school, 55 students.+27 pts · +27 vs typical
Hispanic or Latino students48 studentsHispanic or Latino students, reading: +23 scale-score points versus expectation, against +1 for the same group at a typical California elementary school, 48 students.+23 pts · +22 vs typical
English Only39 studentsEnglish Only, reading: +23 scale-score points versus expectation, against +3 for the same group at a typical California elementary school, 39 students.+23 pts · +20 vs typical
Math
Low-income students55 studentsLow-income students, math: +15 scale-score points versus expectation, against −1 for the same group at a typical California elementary school, 55 students.+15 pts · +16 vs typical
Hispanic or Latino students48 studentsHispanic or Latino students, math: +11 scale-score points versus expectation, against −1 for the same group at a typical California elementary school, 48 students.+11 pts · +12 vs typical
English Only39 studentsEnglish Only, math: +16 scale-score points versus expectation, against +1 for the same group at a typical California elementary school, 39 students.+16 pts · +15 vs typical
this school typical California elementary school, same group| the centre tick is 0 = as predicted

— 3 more groups are reported here with between 11 and 29 students. We hold those back on purpose: at that size the figure swings about 17 points on its own, and a quarter of such groups land past the state's top or bottom cut point by chance alone. They are listed with their student counts in the data appendix. — A group not listed at all had fewer than 11 students with a growth score, so California published nothing for it here. That is a privacy protection, not a judgment about those students. — Context only. None of this enters the Scope Score.

The daily experience

What is it like to be a student here?

Students per teacher

Student–teacher ratio is a schoolwide staffing measure, not an average class size.

The people teaching · CDE staffing 2024–25

About 24 students for every teacher here.

Context — never part of the Scope Score

Students per teacher24 · district 19
Teaching staff12 teachers
Avg. experience14.0 years
Fully credentialed89%
First-year teachers17%
PrincipalStacey Wallace
ShowHide what the district pays
Teacher salary schedule$62,399 – $111,138
Principal salary$132,740 – $150,897
Superintendent salary$276,743

Pay is set by the district, not the school.

Attendance & discipline · 2024–25

Kids here show up more, and get suspended less, than the state average.

TK/K students miss school at roughly twice the rate of Grades 4–6 students (22.2% vs 12.2%). Chronic absence here concentrates in the earliest grades — worth asking how the school works with new families on attendance.

Chronic absenteeismChronic absenteeism: this school 13.6%, district 22.3%, state 17.9%13.6% · −4.3pp vs state
Suspension rateSuspension rate: this school 1.4%, district —, state 1.6%1.4% · −0.2pp vs state
This schoolDistrictCalifornia
ShowHide attendance by student group and by grade
Chronic absenteeism by grade band
Grades 4–612.2%
TK/K22.2%

Resources & neighborhood

What sits behind the school experience?

Explore school spending and the district budget
What gets spent · FY 2024–25

It spends $17,054 per student, more than the California average.

Context — never part of the Scope Score

These measure different things: this figure is spending attributed to this campus, while district-wide figures also include central administration, districtwide programs, and the state's pension contributions made on the district's behalf — costs that never get assigned to a single school. The district number runs higher at nearly every school, not just this one.

$1,525 per student arrives as federal Title funding — a measure of concentrated need, not school quality.

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

Per-pupil spendingPer-pupil spending: $17,054, CA average $14,491$17,054 · spent at this school
Federal share$1,525 per student
District current expense · FY 2024–25$22,334 per student
This schoolDistrictCalifornia
Where the district's dollars go · FY 2024–25 · CDE SACS
Instruction 55%Instruction support 10%Student services 13%Administration 8%Buildings & maintenance 14%Other 1%

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

ShowHide the district's spending year by year
district detail, 2016–2020 — the newest published
2020$13,283 per pupil
2019$12,651 per pupil
2018$13,088 per pupil
2017$10,048 per pupil
2016$9,519 per pupil

Source: NCES F-33 · Full district breakdown →

The neighborhood · ACS 2024

Three in four of students here qualify for free or reduced lunch, versus three in five statewide.

Context — never part of the Scope Score

Worth knowing

At 188 students, this school is much smaller than the typical California elementary school (≈480).

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

On the state's science test (CAST), 57% met or exceeded the standard — science is tested in grades 5 and 8 and once in high school, and it never enters the Scope Score.

Hispanic or Latino64.4% · district 57.5% · CA 56.1%
White29.8% · district 29.7% · CA 19.9%
Black0.5% · district 2.4% · CA 4.8%
Other5.3% · district 9.8% · CA 9.0%
Free or reduced lunch79.3% · CA 64%
Median income$75K · CA $85K
Median home value$247K · CA $659K
Bachelor's degree+20% · CA 35%
ZIP population2,214
Median age52 years

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

Culture & philosophy

What is the school’s approach?

School-stated approach · questions for your visit

Look beyond the brochure

A source-reviewed culture summary is not available for this profile yet. Ask how teaching, student support and family communication work day to day.

Read the school’s own website ↗

Family voices

What would you want another family to know about the daily experience here?

Ask a current family: “When your child needs help, how does the school respond?”

Educator voices

What should families understand about teaching, support and the school community?

Ask an educator: “How do you adapt a typical day for children with different needs?”

Bring these questions on a visit →

Compare nearby schools

What are the alternatives?

Compare schools serving the same grade stage. Private schools have no comparable state-test score.

2025 · elementary schools · combined reading and math measures. Percentiles compare schools within their enrollment group.

SchoolTypePerformance bandAdvancedProficient or AdvancedDistanceSelect
Isleton ElementaryPublicStrong38%63%School being viewed
Open the comparison tool →
More nearby public and private options
Your other options

Your other options

Private school options within 10 miles.

All schools in Isleton →

What should I check before applying?
District public
Confirm the attendance boundary and any permit options.
Charter
Check applications, priorities and deadlines with each school.
Private
Confirm admission requirements, tuition and financial aid.

Moving & enrollment

Which schools could serve my child?

Check your address with the district

School location and nearby schools do not establish attendance eligibility. Confirm boundaries and permit requirements with River Delta Joint Unified.

District information →School website →

Schools across the K–12 journey

Rio Vista HighScope 51direct feeder

The road from this school ends at Rio Vista High, which teaches 8 AP subjects. That number describes past cohorts — a child starting here today would reach Rio Vista High around 2035, and 10 years is a long time for a school to hold still, and by the state's 2023 count 57% of Rio Vista High's graduates enrolled in college somewhere, UC or not.

8 AP subjects taught full record on Rio Vista High's page
Source: College Board

Source: sabs_2016. Schools are grouped by grade stage. Nearby schools are not confirmed feeder links or address assignments. Verify the current path and eligibility with the district.

Plan your next step

What should I do next?

Worth a school visit

Ask how the school challenges kids who clear the standard early. The gap between meeting and exceeding is where pacing shows.

  • Ask whether extra support — tutoring, counseling, small groups — reaches kids across income lines, not just the students already ahead.
  • 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.
Questions

Frequently asked questions

Is Isleton Elementary a good elementary school?
Isleton Elementary has a Scope Score of 59 out of 100, placing it in the 86th percentile of California elementary schools and ranked #786 statewide. 37.8% of students exceeded the state standard on the 2025 CAASPP assessment, which is 16.5 percentage points above the California average of 21.4%. The Scope Score weights 6 dimensions for elementary schools: exceeded standard (42%), met or exceeded (proficient) (23%), grade 3-to-5 growth (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 Isleton Elementary's CAASPP test scores?
On the 2025 CAASPP Smarter Balanced Assessment, 63.3% of students at Isleton Elementary met or exceeded the state standard in ELA and Math combined, and 37.8% exceeded it. The gap between those numbers matters: 25.5% of students are at the proficiency floor, while 37.8% went beyond it. Most rating sites report only the combined "proficient" number. SchoolScope surfaces the exceeded-vs-met split because it shows how many students go beyond the standard rather than only meeting it. 131 student-subject combinations were assessed.
How does Isleton Elementary rank in California?
Isleton Elementary ranks #786 among California elementary schools by Scope Score, placing it in the 86th 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.
What is the attendance and school culture like at Isleton Elementary?
13.6% of students at Isleton 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 1.4%, 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 Isleton Elementary compare to other schools in Isleton?
Isleton Elementary scores 59/100 (86th 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 188 students. Use the schools in Isleton page or the map view to compare all elementary schools nearby.
How does Isleton Elementary serve low-income and underrepresented students?
At Isleton Elementary in Isleton, 57.3% of low-income students met or exceeded the ELA standard in 2025, compared to 30.7% district-wide and 38.2% statewide. Isleton Elementary outperforms its district average for low-income students by 26.6 percentage points in ELA. Other subgroups: Low-Income students (43.4% Math proficient); Hispanic students (59.2% ELA proficient). The largest proficiency gap is 7.1 percentage points for low-income students. Data source: California Department of Education, CAASPP 2024-25. 75 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.
What middle school does Isleton Elementary feed into?
By attendance boundary, Isleton Elementary is zoned to Riverview Middle. Boundaries come from the U.S. Department of Education's School Attendance Boundary Survey, a 2015-16 collection and the most recent national one — they are approximate and may since have changed. A boundary is also not a placement guarantee: magnet, charter, open-enrollment and inter-district transfer options mean students from one school often continue to several different ones. Confirm your address with the district before making an enrollment or housing decision. Data source: NCES School Attendance Boundary Survey, analyzed by SchoolScope.

Use the published evidence to prepare questions, then verify fit and access with the school.

Behind the evidence

Inspect the full record

Public sources, visible methods and the underlying school record. Source years and limitations stay attached to the evidence.

How the Scope Score is calculated

On a narrow screen, scroll the table sideways to see the state comparison and weights.

What the score weighs · CAASPP 2024–25

The 6 things our score weighs

What the score weighs
What we weighHereStateWeight
Exceeded standard37.8%21.4%42%
Met or exceeded63.3%42.7%23%
Chronic absenteeism13.6%17.9%5%
Suspension rate1.4%1.6%5%
EL proficiency (ELPAC)21.9%18.0%5%
Grade gap (G3→G5, different students)+6.5pp-2.9pp

Source CAASPP 2025 · California Department of Education. Measures test performance, attendance, and climate — not arts, community, or your kid. How the score is built

A closer look at the evidence

Isleton Elementary: reading the evidence

Isleton posts 63% meeting the standard, and 37.8% going well past it. Most kids here keep up. Fewer get pushed further. Ask the school what it does for a child who already finds the work easy.

Subject proficiency describes tested students, while graduation describes a graduating cohort. These figures are not successive stages followed by the same students.

Ask about what we don't score — class size, electives, the feel of a classroom — strong numbers everywhere on paper don't mean every classroom feels the same.

Explore the underlying data →
Every number: score factors, grades, student groups and downloads
Every number · For the data nerds

Every number on this page

Score factors, grade-level breakdowns, subgroup proficiency, and nearest schools.

Isleton Elementary is ranked #786 statewide · #1 of 5 in River Delta Joint Unified.

01Score factorsWeighted composite · 2024–25
Score factors
FactorSchoolStateWeight
Exceeded standard37.8%21.4%42%
Met or exceeded63.3%42.7%23%
Chronic absenteeism13.6%17.9%5%
Suspension rate1.4%1.6%5%
EL proficiency (ELPAC)21.9%18.0%5%
Grade gap (G3→G5, different students)+6.5pp-2.9ppnot scored
Exceeded standard
↑ vs CA 21.4% · index 66 · 50 = CA elementary-school midpoint
Met or exceeded
↑ vs CA 42.7% · index 65 · 50 = CA elementary-school midpoint
Chronic absenteeism
↑ vs CA 17.9% · index 57 · 50 = CA elementary-school midpoint · ▲ 0.7pp higher vs 2024
Suspension rate
↑ vs CA 1.6% · index 51 · 50 = CA elementary-school midpoint · ▼ 1.3pp lower vs 2024
EL proficiency (ELPAC)
↑ vs CA 18.0% · index 55 · 50 = CA elementary-school midpoint
Grade gap (G3→G5, different students)
↑ vs CA -2.9pp
02By grade & subgroupCAASPP 2024–25 · % of tested students
ShowHide table 02 — By grade & subgroup
ELATestedEXCMETNEARNOTMET++/CA
Grade 32335%26%22%17%61%+18
Grade 41937%32%26%5%68%+24
Grade 52352%13%30%4%65%+18
Grade 63013%40%33%13%53%+7
MathTestedEXCMETNEARNOTMET++/CA
Grade 32326%35%26%13%61%+15
Grade 42025%30%35%10%55%+14
Grade 52352%17%26%4%70%+35
Grade 63013%10%37%40%23%−11

We show the grade rows CDE publishes for this school. A missing grade or dash can mean the school does not serve that grade, that we hold no valid result for it, or that the tested group was too small to report. It does not mean zero.

Science (CAST)TestedEXCMETNEARNOT
Schoolwide2326%30%43%0%

CAST is tested in grades 5 and 8, then once in grade 10, 11, or 12. This row is the school's all-student aggregate. Not part of the Scope Score.

Subgroup · ELATestedMET+vs districtvs CA
Socioeconomically Disadvantaged7557.3%+27+19
Hispanic/Latino4959.2%+30+20
03Nearest elementary schoolssorted by Scope Score · Grade gap = grade 3 vs grade 5, this year, different students; Cohort growth = one school's returning cohort tracked across grades (mostly, not exactly, the same kids), in scale-score points — that's the measurement the Scope Score weights
SchoolDistScopeEXCMET+Grade gapCohort growthSusp
Isleton Elementary ←5937.8%63.3%+6.5pp1.4%
California average3921.4%42.7%−2.9pp1.6%
04More measurescontext · not all part of the Scope Score
ShowHide table 04 — More measures
YearScopePctileRankExcMet+AbsentSuspGrade gap
20194261#211519.1%60.2%13.9%0.8%+6.4pp
20224369#178925.8%44.3%32.4%1.2%+49.2pp
20233655#253717.5%44.0%24.7%3.7%+11.5pp
20244975#143723.9%49.8%12.9%2.8%-5.2pp
20255986#78637.8%63.3%13.6%1.4%+6.5pp
Grade gap = this year's grade 3 vs grade 5 result, two different sets of students, not a trend for any one child — it is not the measurement the Scope Score's growth dimension uses. See §01 above and /methodology#verdicts for the school's actual scored (cohort) growth.
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
ShowHide table 05 — Climate by student group
Group20192025Δ
Female12.5%11.8%-0.7pp
Male16.5%13.4%-3.1pp
Hispanic/Latino9.9%15.1%+5.2pp
White18.6%8.3%-10.3pp
Students with Disabilities29.4%11.1%-18.3pp
English Learners7.5%7.5%+0.0pp
Homeless42.1%35.3%-6.8pp
Military-Connected0.0%7.1%+7.1pp
Socioeconomically Disadvantaged13.4%14.6%+1.2pp
All Students14.6%12.6%-2.0pp
06California growth model, by student group2025 · scale-score points vs the state's prediction · shown, never scored
ShowHide table 06 — California growth model, by student group
GroupReadingnCDE bandMathnCDE band
All Students+2368Exceptional+1468Accelerated
Socioeconomically Disadvantaged+2755Exceptional+1555Accelerated
Hispanic or Latino+2348Exceptional+1148Accelerated
English Only+2339not categorised+1639not categorised
English Learner+2625Exceptional+1625Accelerated
White+2718Exceptional+2018Exceptional
English Learners Only+1615not categorised+3215not categorised

Whole scale-score points above or below what CDE's model predicted for these same children from their own prior-year scores — not a percentage, not a percentile. Statewide a typical school lands near +1 with a spread of about 13 points either side, so read a figure against its group's own typical value, not against zero. Muted rows have fewer than 30 students with a growth score — published by CDE, held back from the narrative sections above because at that size the figure swings about 17 points on its own. “Not categorised” is CDE assigning no band — English Only, Recently Reclassified, and English Learners Only receive a value and no band, for every school in the state. It is not a missing number. Most figures blend two consecutive years, so adjacent published years share input data and no trend line can honestly be drawn across them. A group absent from this table had fewer than 11 students with a growth score and was never published. Grades 4-8 only. None of this enters the Scope Score — it is more strongly correlated with school demographics than our own growth measure, and one published year is not enough to test its reliability.

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EXC = exceeded standard · MET+ = met or exceeded ("proficient") · Source: CA Dept. of Education · CAASPP 2024–25 · n=5,721 elementary schools · Vintages: climate subgroups 2019+2025 · district finance per its label · ACS 2022 · Data updated 2026-09-18

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

Isleton Elementary

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