Mabel Mattos Elementary, Milpitas CA

Original Research by School Decision on Mabel Mattos Elementary

Mabel Mattos Elementary serves kindergarten through sixth grade in Milpitas, a tech-centered Silicon Valley city where residential neighborhoods coexist with extensive industrial and commercial zones. The school sits within a rapidly growing community where new transit-oriented housing is reshaping the south end near the BART and VTA light rail stations, while existing neighborhoods maintain a family-oriented suburban character.

The school's student body is predominantly Asian, reflecting the broader demographics of Milpitas and the wider region. The enrollment leans toward the younger grades, with substantial kindergarten and first-grade cohorts and a notably smaller sixth-grade class, which may reflect either district transitions at that grade level or year-to-year variation. A small portion of students qualify for free or reduced-price lunch, suggesting overall economic stability among families served, though this does not capture the full range of economic diversity in the area.

State testing data from the most recent year show solid proficiency across both mathematics and English language arts. In mathematics, students in grades three through six cluster in the range of roughly three-quarters to more than four-fifths meeting or exceeding state standards, with grade four performing strongest. English language arts results are somewhat more mixed by grade, with third grade at the lower end of the range and fifth grade strongest. Grade five science proficiency is also reported. The school's overall proficiency index places it in the top quartile among schools in Santa Clara County, a position that reflects consistent performance across tested subjects and grades.

The testing data available spans only a single year, so trajectory cannot be assessed. No prior-year results are present in the data, leaving open the question of whether this year's results represent stable performance, improvement, or decline.

District-level strategic priorities or major initiatives were not found in the research conducted, so information about district-wide direction, curriculum adoption, staffing plans, or capital projects is not available here. Mabel Mattos is part of Milpitas Unified School District, which serves the city and surrounding areas.

No data on special education rates, English learner populations, chronic absenteeism, discipline, or staff composition were available. Similarly, information about the school's specific programs, classroom structure, technology integration, or enrichment offerings was not present in the materials reviewed. Parents interested in these areas may want to reach out to the school directly to understand how it supports students with different learning needs and what curricular and extracurricular opportunities it provides.

The Milpitas housing market reflects Bay Area costs, with residential values well above state and national medians and monthly rents substantial. New family-oriented mixed-use and multifamily development near the transit stations is expanding options in the south part of the city, though entry into the overall market remains a significant financial commitment for most households. The city's economy is driven by large technology and manufacturing employers, with Cisco, KLA, and Western Digital among the largest, creating a workforce-rich community and shaping the broader context in which families live and work.

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Academic performance

How students perform on state tests, by grade, set against the district.

Math

Grade 381%

School 81% · District 72% · ▲ 9 pts above district

▲ 38 pts above state median · ▲ 24 pts above county median

Grade 483%

School 83% · District 67% · ▲ 17 pts above district

▲ 46 pts above state median · ▲ 29 pts above county median

Grade 578%

School 78% · District 62% · ▲ 16 pts above district

▲ 47 pts above state median · ▲ 30 pts above county median

Grade 679%

School 79% · District 64% · ▲ 15 pts above district

▲ 49 pts above state median · ▲ 33 pts above county median

English language arts

Grade 371%

School 71% · District 65% · ▲ 7 pts above district

▲ 31 pts above state median · ▲ 19 pts above county median

Grade 476%

School 76% · District 67% · ▲ 9 pts above district

▲ 34 pts above state median · ▲ 21 pts above county median

Grade 582%

School 82% · District 70% · ▲ 12 pts above district

▲ 37 pts above state median · ▲ 24 pts above county median

Grade 677%

School 77% · District 73% · ▲ 4 pts above district

▲ 33 pts above state median · ▲ 18 pts above county median

Science

Grade 572%

School 72% · District 55% · ▲ 17 pts above district

▲ 44 pts above state median · ▲ 29 pts above county median

This schoolMilpitas Unified, same grade

Graduation rate (ACGR) reflects the federally published Adjusted Cohort Graduation Rate for the most recent year available. We refresh this data annually at the close of each academic year in June. The federal source publishes a banded rate (for example, "90-94%") instead of an exact number for cohorts small enough to risk identifying individual students. The state distribution chart, where shown, plots every school in the state with a published rate or band; schools whose rate is federally suppressed are excluded. Where the federal source publishes a band rather than an exact rate, the school is placed within its band using a stable, ID-derived offset, so its position is consistent across visits.

Proficiency by household income

English language arts

Grade 3Lower-income28%Higher-income81%53 pp gap

Grade 4Lower-income44%Higher-income83%39 pp gap

Grade 5Lower-income40%Higher-income90%50 pp gap

Grade 6Lower-income53%Higher-income84%31 pp gap

Mathematics

Grade 3Lower-income50%Higher-income87%37 pp gap

Grade 4Lower-income56%Higher-income90%34 pp gap

Grade 5Lower-income40%Higher-income85%45 pp gap

Grade 6Lower-income58%Higher-income86%28 pp gap