Enrollment
822
California · 2024-25 NCES data
Elementary school (grades K-5) · Mountain House, CA
Sebastian Questa Elementary
Federal NCES profile for Sebastian Questa Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060141012551
👥 S:T ratio 16
🌟 Gifted program 70
📋 Attendance 71
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sebastian Questa Elementary earns 52/100 on the Resource Investment Index, with class sizes near the California median.
- #1 of 6
- elementary schools in Mountain House · Resource Index
- 52
- Resource Index · Higher
- 21.1:1
- students per teacher
- 9.5%
- free-lunch eligible
Sebastian Questa Elementary has class sizes near the California median. Computed live against every California school reporting to NCES.
By Resource Investment Index, Sebastian Questa Elementary ranks #1 of 6 elementary schools in Mountain House, CA.
School address
District: Lammersville Joint Unified · California
NCES ID 060141012551 Verify on NCES CCD record →
Teachers (FTE)
39.0
Federal CCD staff survey
Students per teacher
21.1:1
vs 21.5:1 California avg
-2% vs state
Free-lunch eligible
9.5%
vs 55.5% California avg
-83% vs state
Student-teacher ratio in context
How Sebastian Questa Elementary compares with California and U.S. medians
What stands out at Sebastian Questa Elementary
Sebastian Questa Elementary is a lower-poverty, mid-sized elementary school in Mountain House, California, enrolling 822 students.
At 21.1:1, its student-teacher ratio sits close to the California median, within a few percentage points of the 21.5:1 state norm, neither notably crowded nor notably small.
Comparatively few students face economic hardship here, 9.5% free-meal eligibility runs 83% below the California average.
Enrollment of 822 puts it in the larger third of California schools by headcount.
Its Resource Investment Index outscores 94% of the 9,998 California schools with a score on record, a top-tier result on this measure.
Among 683 similarly sized, similarly resourced-need California schools statewide, it ranks #18, a top-tier result once campus size and economic need are matched.
Its student body is led by Asian (65%) and Hispanic or Latino (13%) (diversity index 55/100).
11.8% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Lammersville Joint Unified spends $10,700 per pupil, 35% below the California average, a leaner-resourced district than most.
The federal civil-rights collection also records 2 expulsions at this campus for 2021-22.
Among Mountain House's elementary schools, it stands alongside Hansen Elementary (930 students): Sebastian Questa Elementary is smaller than that campus by headcount and runs leaner classes (21.1:1 vs 25.1:1).
Lammersville Joint Unified also operates Mountain House High (2,428 students) and Hansen Elementary (930 students) alongside Sebastian Questa Elementary.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Sebastian Questa Elementary compares
Sebastian Questa Elementary on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.1:1 | ▼ 2% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 9.5% | ▼ 83% | 55.5% | 51.7% |
| Enrollment | 822 | top 17% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.1:1
Leaner classes than 13% of US schools, heavier class loads than most.
822
Bigger than 86% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
9.5%
free-lunch eligible
- 83% below the California average of 55.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
21.1:1
students per teacher
- 2% below state mean
Top 44% in California - lower ratio than 56% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
11.8%
chronically absent (missed 10%+ of school days)
In the 10-15% range, above the pre-pandemic national baseline but within the broader post-pandemic picture.
Funding equity
$10,700
per pupil, district-wide
- below California avg of $16,509
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 12 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 1.5 per 100 students. Reported via the Civil Rights Data Collection. Includes 2 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Asian 64.8%
Hispanic or Latino 12.7%
White 9.9%
Two or More 8.2%
African American 3.9%
American Indian / Alaska Native 0.6%
Largest group: Asian at 64.8% of enrollment.
Student-body diversity index 54.6/100
Simpson diversity index - at 54.6, Sebastian Questa Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Lammersville Joint Unified, which includes Sebastian Questa Elementary.
$10,700
Per student
-35%
vs California
Avg $16,509
-36%
vs U.S.
Avg $16,593
Revenue mix
Local 55.7%
State 39.9%
Federal 4.4%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Sebastian Questa Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Mountain House High | Larger | Similar economic need | Higher S:T ratio |
| Hansen Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Julius Cordes Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Bethany Elementary | Similar size | Similar economic need | Higher S:T ratio |
| Wicklund Elementary | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Sebastian Questa Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 2,428
- Students per teacher
- 27:1
- Resource Index
- 31/100
- Enrollment
- 930
- Students per teacher
- 25.1:1
- Resource Index
- 50/100
- Enrollment
- 877
- Students per teacher
- 25.8:1
- Resource Index
- 49/100
- Enrollment
- 768
- Students per teacher
- 22.6:1
- Resource Index
- 49/100
- Enrollment
- 689
- Students per teacher
- 19.7:1
- Resource Index
- 41/100
Similar elementary schools in Mountain House
5 comparable elementary schools (grades K-5) serving the same city.
Hansen Elementary
Standard public school
930 students 25.1:1 students per teacher
Julius Cordes Elementary
Standard public school
877 students 25.8:1 students per teacher
Bethany Elementary
Standard public school
768 students 22.6:1 students per teacher
Wicklund Elementary
Standard public school
689 students 19.7:1 students per teacher
Altamont Elementary
Standard public school
616 students 21.2:1 students per teacher
Similar elementary schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~822 students)
Similar student-teacher ratio (~21.1:1)
Next steps
Verify locally before acting on Sebastian Questa Elementary's federal record.
- Compare Sebastian Questa Elementary against another school. Compare schools
- Lammersville Joint Unified's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Sebastian Questa Elementary
How many students attend Sebastian Questa Elementary?
Sebastian Questa Elementary has 822 students enrolled. It is an elementary school in Mountain House, CA.
What is the student-teacher ratio at Sebastian Questa Elementary?
The student-teacher ratio at Sebastian Questa Elementary is 21.1:1, which is 2% lower than the California average of 21.5:1 and 34% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Sebastian Questa Elementary?
9.5% of students at Sebastian Questa Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Sebastian Questa Elementary?
The largest demographic group at Sebastian Questa Elementary is Asian at 64.8% of enrollment, in Mountain House, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.6/100.
What is the Resource Investment Index for Sebastian Questa Elementary?
Sebastian Questa Elementary has a Resource Investment Index of 52/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sebastian Questa Elementary rank among elementary schools in Mountain House?
By Resource Investment Index, Sebastian Questa Elementary ranks #1 of 6 elementary schools in Mountain House, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Mountain House on the city page.
Is Sebastian Questa Elementary a good school?
Sebastian Questa Elementary earns 52/100 on the Resource Investment Index, with class sizes near the California median. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Lammersville Joint Unified?
Besides Sebastian Questa Elementary, Lammersville Joint Unified also operates Mountain House High (2,428 students), Hansen Elementary (930 students), and Julius Cordes Elementary (877 students). See the Lammersville Joint Unified district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.