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Altamont Elementary · Mountain House

Altamont Elementary: The score is strong. The trajectory is stronger.

Altamont pairs 66% proficiency with gains that hold up when the same students are tracked two years apart — the rare school that posts both.

2019–2025 trend · CDE CAASPP
This schoolCA avg
Scope6445
% Exceeded38%21%
% Met+66%43%
Growth+18.5-2.9
Absence11.2%17.9%
Suspension1.8%1.6%
Scope Score
64
🚀 Growth Engine · Solid
ranked #752 statewide · #5 of 8 in Lammersville Joint Unified

Altamont Elementary scores 64 of 100 on SchoolScope's Scope Score — the 87th 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 “66% proficient” and call it done. Altamont deserves a closer read. It sits at the 87th percentile of 5,744 California elementary schools — but the ranking is the least interesting thing on this page.

Altamont's low-income kids hit 52.8% 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.

The seven-year arc

Percentile among 5,744 elementary schools statewide

Has held the 87th-percentile line every tested year since 2019.

CA Dashboard
ELAGreen(Increased Significantly)MathYellow(Declined Significantly)

Proficiency here is back to its pre-pandemic level — 66% meet the standard, about where the school stood in 2019.

ELA — % met or exceeded, by grade
Grade20192022202320242025
Grade 370%76%76%56%52%
Grade 459%70%68%78%63%
Grade 575%72%73%63%84%
Grade 670%81%68%76%66%
Grade 755%75%83%68%79%
Grade 855%78%65%83%69%
Math — % met or exceeded, by grade
Grade20192022202320242025
Grade 376%76%79%63%62%
Grade 460%80%78%84%66%
Grade 563%69%79%58%67%
Grade 660%66%69%62%59%
Grade 749%64%75%65%65%
Grade 852%55%57%69%65%

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.

22%
30%
48%
Grade 3 · 52% proficient
38%
25%
37%
Grade 4 · 63% proficient
52%
32%
16%
Grade 5 · 84% proficient

The honest read: the share exceeding rises 30.6pp across grades; the floor rises 32.0pp. 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.

52.8%
Low-income · ELA · met standard

Altamont's most underrated number

52.8% of low-income students met the ELA standard — versus 38.2% for the same group statewide. That's the strongest kind of signal a school can post: it holds across income lines.

Altamont low-income: 52.8%State low-income: 38.2%

The 6 things our score weighs

Exceeded standard
37.5%
State 21.3%
16.2pp above state avg
Growth (G3→G5)
+18.5pp
State -2.9pp
Scores improve across grades
Met or exceeded
65.7%
State 42.7%
23.1pp above state avg
Chronic absenteeism
11.2%
State 17.9%
6.7pp below state avg
Suspension rate
1.8%
State 1.6%
0.2pp above state avg
EL proficiency (ELPAC)
28.0%
State 18.0%
10.0pp 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 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.

How every group of students does here

At Altamont Elementary in Mountain House, 52.8% of low-income students met or exceeded the ELA standard in 2025, compared to 48.1% district-wide and 38.2% statewide. Altamont Elementary outperforms its district average for low-income students by 4.7 percentage points in ELA. Other subgroups: Low-Income students (38.9% Math proficient); Asian students (82.5% ELA proficient). The largest proficiency gap is 5.1 percentage points for white students. Data source: California Department of Education, CAASPP 2024-25. 36 students tested.

All students at this school: 67% met or exceeded
All StudentsAll Students: this school 67%, district —, state 43%67%
MaleMale: this school 68%, district 73%, state 42%68% · +0 vs school
FemaleFemale: this school 67%, district 74%, state 44%67% · −0 vs school
AsianAsian: this school 82%, district 86%, state 72%82% · +14 vs school
Hispanic/LatinoHispanic/Latino: this school 48%, district 46%, state 32%48% · −19 vs school
WhiteWhite: this school 67%, district 64%, state 56%67% · −1 vs school
Socioeconomically DisadvantagedSocioeconomically Disadvantaged: this school 46%, district 45%, state 32%46% · −22 vs school
Two or More RacesTwo or More Races: this school 54%, district 59%, state 56%54% · −13 vs school
English LearnersEnglish Learners: this school 50%, district 27%, state 11%50% · −17 vs school
Students with DisabilitiesStudents with Disabilities: this school 41%, district 20%, state 15%41% · −26 vs school

5 of 15 student groups here are too small to report — a privacy protection, not a gap.

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 11.2%, district 8.5%, state 17.9%11.2% · −6.7pp vs state
Suspension rateSuspension rate: this school 1.8%, district —, state 1.6%1.8% · +0.2pp vs state

TK/K students miss school at roughly twice the rate of Grades 4–6 students (17.2% vs 7.1%). 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 4–67.1%
Grades 7–811.0%
TK/K17.2%

Where the path goes

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

K-12 Feeder Path
Elementary
Altamont Elementary
64/100
This school

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 24:1, district 24:124:1
Teaching staff34 teachers
Avg. experience8.5 years
Fully credentialed77%
First-year teachers15%
Intern / emergency permit5.8%
Salary Schedule
Teacher salary schedule$64,999 – $133,351
Principal salary$152,460 – $181,500
Superintendent salary$288,480

Pay is set by the district, not the school.

What gets spent here

Per-pupil spendingPer-pupil spending: $13,034, CA average $14,815$13,034 · spent at this school
Federal share$22 per student

$22 per student arrives as federal Title funding — a measure of concentrated need, not school quality.

District current expense · FY 2024–25$13,448 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
Instruction58%
Instruction support14%
Student services8%
Administration5%
Buildings & maintenance12%
Other4%

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

district detail, 2020–2020 — the newest published
2020$9,816 per pupil

Source: NCES F-33 · Full district breakdown →

The neighborhood it serves

Asian45.3%
District 57.9% · CA 10.2%
Hispanic18.0%
District 12.9% · CA 56.1%
Other16.1%
District 14.0% · CA 9.0%
White13.6%
District 11.0% · CA 19.9%
Black7.0%
District 4.2% · CA 4.8%
Low IncomeFree/reduced lunch eligible 12.7% (51pp below CA avg)
Neighborhood — American Community Survey
Median income$177K · CA $85K
Median home value$947K · CA $659K
Bachelor's degree+54% · CA 35%
ZIP population25,574
Median age35 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), 64% met or exceeded the standard — science is tested in grades 5 and 8 but never enters the Scope Score.

Frequently asked questions

Is Altamont Elementary a good elementary school?

Altamont Elementary has a Scope Score of 64 out of 100, placing it in the 87th percentile of California elementary schools and ranked #752 statewide. 37.5% of students exceeded the state standard on the 2025 CAASPP assessment, which is 16.2 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 Altamont Elementary's CAASPP test scores?

On the 2025 CAASPP Smarter Balanced Assessment, 65.7% of students at Altamont Elementary met or exceeded the state standard in ELA and Math combined, and 37.5% exceeded it. The gap between those numbers matters: 28.2% of students are at the proficiency floor, while 37.5% 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. 347 student-subject combinations were assessed.

How does Altamont Elementary rank in California?

Altamont Elementary ranks #752 among California elementary schools by Scope Score, placing it in the 87th 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 Altamont Elementary getting better or worse?

Based on 2025 CAASPP data, proficiency at Altamont Elementary increases by 18.5 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 Altamont Elementary?

11.2% of students at Altamont 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 1.8%, 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 Altamont Elementary compare to other schools in Mountain House?

Altamont Elementary scores 64/100 (87th 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 616 students. Use the schools in Mountain House page or the map view to compare all elementary schools nearby.

How does Altamont Elementary serve low-income and underrepresented students?

At Altamont Elementary in Mountain House, 52.8% of low-income students met or exceeded the ELA standard in 2025, compared to 48.1% district-wide and 38.2% statewide. Altamont Elementary outperforms its district average for low-income students by 4.7 percentage points in ELA. Other subgroups: Low-Income students (38.9% Math proficient); Asian students (82.5% ELA proficient). The largest proficiency gap is 5.1 percentage points for white students. Data source: California Department of Education, CAASPP 2024-25. 36 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%
37.5%
↑ vs CA 21.3% · 66th pctile
Growth (G3→G5) · 27%
+18.5pp
↑ vs CA -2.9pp · 63th pctile
Met or exceeded · 20%
65.7%
↑ vs CA 42.7% · 68th pctile
Chronic absenteeism · 5%
11.2%
↑ vs CA 17.9% · 61th pctile
Suspension rate · 5%
1.8%
↓ vs CA 1.6% · 49th pctile
EL proficiency (ELPAC) · 5%
28.0%
↑ vs CA 18.0% · 64th pctile
02By grade & subgroupCAASPP 2024–25 · % of tested students
ELATestedEXCMETNEARNOTMET++/CA
Grade 34622%30%30%17%52%+9
Grade 46338%25%29%8%63%+19
Grade 56352%32%11%5%84%+36
Grade 66430%36%27%8%66%+19
Grade 79546%33%8%13%79%+31
Grade 89540%29%23%7%69%+23
MathTestedEXCMETNEARNOTMET++/CA
Grade 34726%36%21%17%62%+16
Grade 46542%25%32%2%66%+25
Grade 56346%21%25%8%67%+31
Grade 66430%30%23%17%59%+24
Grade 79545%20%14%21%65%+31
Grade 89546%19%15%20%65%+33
Science (CAST)TestedEXCMETNEARNOT
Grade 5/8/1115824%40%34%3%

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 Disadvantaged3652.8%+5+15
Asian19482.5%−3+8
Hispanic/Latino5160.8%+8+22
03Peer comparison · nearest elementary schoolssorted by Scope Score
SchoolDistScopeEXCMET+GrowthSusp
Altamont Elementary ←6437.5%65.7%+18.51.8%
Julius Cordes Elementary1.4 mi8866.0%85.1%+12.10.5%
Hansen Elementary0.9 mi8457.1%78.7%+4.70.9%
Evelyn Costa Elementary1.9 mi7951.5%77.6%+9.91.4%
California average4521.3%42.7%−2.91.6%
04More measurescontext · not all part of the Scope Score
YearScopePctileRankExcMet+AbsentSuspGrowth
20196181#103239.0%67.1%8.5%1.9%-3.8pp
20226289#63343.6%74.0%12.2%1.2%-5.7pp
20237093#41746.2%75.5%13.0%1.6%-1.8pp
20245778#123439.3%67.1%10.9%1.4%+1.2pp
20256487#75237.5%65.7%11.2%1.8%+18.5pp
NO STATEWIDE TESTING 2020–21 (COVID) · SCORE AND PERCENTILE ARE RELATIVE TO EACH YEAR'S FIELD
What we can't show
  • — Scored here as an elementary school — other grade spans appear in the data appendix.
05Climate by student groupchronic absenteeism · 2019 vs 2025 — the two years CDE publishes at subgroup level
Group20192025Δ
Female7.8%10.5%+2.7pp
Male9.0%10.7%+1.7pp
Asian4.7%10.6%+5.9pp
Black/African American15.8%0.0%-15.8pp
Filipino0.0%7.1%+7.1pp
White2.4%9.1%+6.7pp
Hispanic/Latino8.9%16.4%+7.5pp
Two or More Races8.1%13.0%+4.9pp
Students with Disabilities12.3%15.4%+3.1pp
English Learners7.0%14.4%+7.4pp
Homeless7.7%
Socioeconomically Disadvantaged12.9%13.3%+0.4pp
All Students8.5%10.6%+2.1pp
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