SA
Elementary SchoolsGrades K-8

Sebastian Questa Elementary

Lammersville Joint Unified · San Joaquin County · 685 North Montebello Street, Mountain House, CA 95391-1241

(209) 836-7230 · lammersvilleschooldistrict.net

Compare this school →
10/10
#409
Rank 409 out of 5,722
Top 7%
English Language Arts10/10 · #441 · 92nd percentile
Mathematics10/10 · #384 · 93rd percentile
Science10/10 · #415 · 93rd percentile

English Language Arts

Math Trend

Science Trend

School Overview

Mountain House is one of the Bay Area's most ambitious planned communities, and Sebastian Questa Elementary fits right into that vision — a K-8 school that consistently ranks among the top in California and draws families who moved here specifically for the schools. The community has a tight-knit, newer-suburb feel with well-kept neighborhoods and a real sense of intentional planning, making it a popular landing spot for families priced out of the South Bay but unwilling to compromise on education. If you're looking for strong academics across the board and a school that grows with your kids all the way through 8th grade, Questa is a big part of why people choose Mountain House in the first place.

Student Demographics

556 students tested · 2024-25 school year

Ethnicity

Asian
311 (56%)
Hispanic
64 (12%)
White
62 (11%)
Filipino
53 (10%)
Multiple Races
34 (6%)
African American
20 (4%)
Other
12 (2%)

Key Indicators

English Learners137 (25%)
Socioeconomically Disadvantaged57 (10%)
Students with Disabilities56 (10%)

Staff & Teachers(2024-25)

822
Enrollment
36.9
Teachers (FTE)
22.3:1
Student-Staff Ratio
2
Administrators (FTE)
21.4
Avg Class Size*(2023-24)

Community Enrichment Programs

This supplementary score measures the availability of enrichment programs — such as tutoring, music, dance, sports, and arts — within 3 miles of the school. Schools in communities with more diverse and accessible programs score higher.

Nearby Programs3/10 · #4802 · 21st percentile

21 programs within 3 miles. Ranked among Elementary Schools in California.

Nearby Libraries

No programs found