C. B. Eaton Elementary, Cupertino CA

Original Research by School Decision on C. B. Eaton Elementary

C. B. Eaton Elementary is a kindergarten-through-fifth-grade school serving a suburban neighborhood in Cupertino, part of the Cupertino Union School District. The school's enrollment is small, with roughly balanced numbers across grades and a composition that is predominantly Asian, reflecting the broader demographic character of Cupertino and Silicon Valley more widely.

The school's academic performance is notably strong in mathematics. Across tested grades, math proficiency is consistently in the high range, with the uppermost grades showing solid attainment. English language arts results are somewhat softer, running roughly eight to nine percentage points lower than math across the tested grades. Science proficiency, measured at fifth grade, sits in the low-to-mid range. Overall, C. B. Eaton's proficiency profile places it in the top quartile among schools in Santa Clara County on combined tested performance.

The school population is affluent and predominantly college-educated. A small minority of families qualify for free or reduced-price lunch, well below the county median. The neighborhood reflects Cupertino's character: tree-lined residential streets climbing toward the western foothills, with a mix of single-family homes and some multifamily housing. Cupertino itself is a full-service city with a strong commercial and employment base anchored by large technology firms and Apple as the dominant employer. Schools sit on separated campuses within neighborhoods rather than at a civic center, and daily life is car-oriented, though the city has been expanding bike infrastructure and mixed-use gathering zones.

Housing values in the Cupertino zip code are very high, among the highest in the state. Rents have risen substantially year over year. The cost structure makes homeownership in the school's catchment area accessible primarily to dual-income professional and tech-sector households. Families renting in the area pay a significant share of income toward housing.

The school's small enrollment means it likely offers a close-knit environment with less departmentalization than larger elementary schools, though the data available does not detail class sizes, special education services, English learner support, or staffing depth. Data on discipline, attendance, or chronic absenteeism was not available. C. B. Eaton fits a profile of a neighborhood school in an affluent, high-cost, and highly educated community where academic performance in core subjects is a visible priority and peer groups are economically and educationally homogeneous.

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Academic performance

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

Math

Grade 388%

School 88% · District 85% · ▲ 3 pts above district

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

Grade 487%

School 87% · District 83% · ▲ 4 pts above district

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

Grade 584%

School 84% · District 82% · ▲ 2 pts above district

▲ 53 pts above state median · ▲ 36 pts above county median

English language arts

Grade 377%

School 77% · District 77%

▲ 37 pts above state median · ▲ 25 pts above county median

Grade 480%

School 80% · District 78% · ▲ 1 pts above district

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

Grade 581%

School 81% · District 81%

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

Science

Grade 572%

School 72% · District 71% · ▲ 1 pts above district

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

This schoolCupertino Union, 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-income60%Higher-income82%22 pp gap

Grade 4Lower-income69%Higher-income81%12 pp gap

Grade 5Lower-income56%Higher-income88%32 pp gap

Mathematics

Grade 3Lower-income65%Higher-income95%30 pp gap

Grade 4Lower-income100%Higher-income85%15 pp gap

Grade 5Lower-income61%Higher-income90%29 pp gap