The top reported proficiency rate is 26% in English language arts. The lowest is 13% in Science.
Original Research by School Decision on Estudillo Elementary
Estudillo Elementary serves kindergarten through fifth grade in San Jacinto, a mid-sized Riverside County city at the base of the San Jacinto Mountains. The school sits in a growing, car-oriented community known for relative affordability, with a mix of residential neighborhoods and open farmland. The city itself is experiencing development pressure, with new single-family subdivisions and a recent gated 55+ community, alongside a small historic downtown anchored by a revitalized Main Street and heritage parks.
The school enrolls a student body that is primarily Hispanic, with a substantial share of students qualifying for free or reduced-price lunch. A meaningful portion of the enrollment consists of American Indian and Alaska Native students, reflecting the presence of the Soboba Band of Luiseño Indians reservation at the city's edge. The enrollment is stable across the grade span, with balanced cohorts from kindergarten through fifth grade.
Academic proficiency at Estudillo is low across all tested subjects and grades. In English language arts, proficiency rates are modest in third grade and somewhat higher in fourth and fifth grades, though still well below state targets. In mathematics, proficiency is particularly weak, with the lowest results appearing in fifth grade and only slightly better outcomes in third and fourth grades. Science proficiency, measured only in fifth grade, falls notably low. Overall, the school's proficiency index places it in the bottom quartile when compared with other elementary schools across Riverside County districts. State testing data represents a single year, so trend information is not available to show whether performance is moving or stable.
The broader San Jacinto Unified School District has recently taken concrete steps that shape the school environment. Voters approved Measure C, a general obligation bond, in November 2024 to modernize aging facilities, build new classrooms to relieve overcrowding, replace outdated portable classrooms, and upgrade safety and STEAM spaces. The district also opened Rose Salgado Elementary, its newest and largest elementary campus, in August 2025, adding significant capacity for growing enrollment in the district. At the secondary level, San Jacinto Leadership Academy completed its build-out as an International Baccalaureate World School serving grades 6 through 12, graduating its first class in 2025.
Estudillo is part of a school district in an area experiencing real growth and investment. Housing values in the 92583 ZIP code are moderate relative to California and the nation, with homeownership remaining more accessible than in many neighboring Southern California markets. Median home prices have held relatively stable year-over-year. Rental costs are also moderate, though they consume a meaningful share of household income. The local economy centers on retail trade, health care, and manufacturing, with growing employment in education and hospitality driven by the Mt. San Jacinto Community College District and government jobs. Public transit is provided by the Riverside Transit Agency, with bus routes serving school sites and discounted student passes available.
Parents considering Estudillo should recognize that academic proficiency is substantially below state benchmarks and falls in the lower range among county schools. The weak results span reading, writing, and mathematics, with mathematics performance particularly limited. A parent may want to look into this further with the school to understand what supports exist, what instructional approaches are in use, and what measurable progress or intervention strategies are underway. The broader district is making material investments in facilities and student capacity through the bond passage, and new school options including the IB pathway at the secondary level are expanding choice within the district.
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