Post Elementary, Westminster CA - Test Scores & Data

Original Research by School Decision on Post Elementary

Post Elementary is a regular public school in Westminster serving kindergarten through sixth grade, operated by Garden Grove Unified. The school enrolls a small student body with a membership that is predominantly Asian, and a substantial majority qualify for free or reduced-price lunch, reflecting the economic composition of the Westminster area and the school's catchment.

On the California Assessment of Student Performance and Progress (CAASPP), Post Elementary's proficiency in English language arts stands in the mid-range. Across grades three through six, students show a mixed picture: third and fourth graders perform around the lower half of the reported range, while fifth graders match that level, but sixth graders perform higher. Mathematics proficiency is somewhat stronger overall. Performance is relatively even across the middle grades, with fifth grade showing the weakest results of any grade level in either subject. Science proficiency, measured in fifth grade only through the California Science Test, is notably lower, with fewer than half of fifth graders meeting proficiency. The school's overall proficiency index places it above the midpoint among the county's elementary schools with comparable test data, but a parent may want to look into science instruction and support further with the school.

The school's student population is small, distributed fairly evenly across the seven grade levels served. Nearly all students enrolled are either Asian or Hispanic. Special-population enrollment data—counts and rates for students with individualized education plans or identified as English learners—is not available in the records reviewed. The school does not appear to have a website listed in the data provided, so families seeking more details about curriculum, programs, or daily operations should contact the school directly or reach out to Garden Grove Unified.

Westminster itself is a largely built-out suburban city with a defining cultural anchor in Little Saigon, the Vietnamese commercial and community district centered on Bolsa Avenue. The city's housing market reflects broader Orange County patterns: home values and rental costs are high relative to national benchmarks and moderately above the state average. A substantial share of families rent rather than own. The mall that once anchored the city's retail landscape ceased operations in late 2025 and is being redeveloped as a mixed-use district with new housing, offices, and open space; demolition is scheduled for early 2026. This change may affect the school's broader community context over the coming years as the area undergoes transformation.

District-level changes that might affect Post Elementary's operations or programs were not publicly documented in available sources during the recent period reviewed. The district continues to operate under voter-approved bonds from several years prior. Families interested in the district's strategic direction, special programs beyond the elementary level, or how students transition to middle and high school should connect with Garden Grove Unified directly, as that information was not available in the materials reviewed.

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Academic performance

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

Math

Grade 367%

School 67% · District 58% · ▲ 10 pts above district

▲ 25 pts above state median · ▲ 11 pts above county median

Grade 469%

School 69% · District 54% · ▲ 16 pts above district

▲ 32 pts above state median · ▲ 16 pts above county median

Grade 559%

School 59% · District 46% · ▲ 14 pts above district

▲ 29 pts above state median · ▲ 13 pts above county median

Grade 670%

School 70% · District 56% · ▲ 15 pts above district

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

English language arts

Grade 357%

School 57% · District 52% · ▲ 5 pts above district

▲ 16 pts above state median · ▲ 6 pts above county median

Grade 457%

School 57% · District 55% · ▲ 2 pts above district

▲ 15 pts above state median · ▲ 3 pts above county median

Grade 559%

School 59% · District 59%

▲ 14 pts above state median · ▲ 1 pts above county median

Grade 673%

School 73% · District 63% · ▲ 10 pts above district

▲ 30 pts above state median · ▲ 13 pts above county median

Science

Grade 536%

School 36% · District 39% · ▼ 3 pts below district

▲ 8 pts above state median · ▼ 4 pts below county median

This schoolGarden Grove 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 6Lower-income71%Higher-income83%12 pp gap

Mathematics

Grade 6Lower-income65%Higher-income92%26 pp gap