The top reported proficiency rate is 31% in English language arts. The lowest is 19% in Science.
Original Research by School Decision on Tres Rios Elementary School
Tres Rios Elementary School serves students from kindergarten through eighth grade as a regular public school within the Littleton Elementary District, located in the city of Tolleson. The school operates in a community that is, by its own description, a compact industrial and distribution employment center in the Phoenix West Valley, with a small-town civic identity that is surrounded by warehouses, food processing plants, and major transportation corridors. The city’s employment base, anchored by Fortune-level companies and distribution centers, gives it an unusually high jobs-to-residents ratio, but the residential side of Tolleson remains modest in population. The school sits within a web of school districts serving the city, and the district briefs indicate no major recent changes such as bond measures, overrides, or curriculum shifts that would alter the school’s near-term trajectory.
Tres Rios is a large school for its grade band. Its student body is predominantly Hispanic, and the remaining enrollment is composed of Black, white, and smaller shares of students from other racial and ethnic backgrounds. Data on the share of students who qualify for free or reduced-price meals was not available, nor were counts for students with individualized education programs or English learner status. This absence means a reader cannot assess the level of economic or linguistic need at the school from this data alone, something a parent may want to ask the school about directly.
On state assessments, proficiency rates at Tres Rios are lower than the midpoint among schools in Maricopa County. In math, the share of students meeting or exceeding expectations was in the range of roughly one in six to roughly two in five across tested grades, with the lowest rates in the upper elementary and middle school grades. In English language arts, proficiency was somewhat higher but still described a pattern where roughly a third or fewer students met the bar in most grades, with a gradual decline as students moved into the older grades. Science results, available for one grade level, showed a similar pattern. The school’s own aggregated proficiency data across all grades in the most recent year shows no clear trend of improvement, as the figures appear in a narrow range similar to the prior year.
Because Tres Rios does not serve high school grades, there is no graduation rate to report. A parent looking at this school will want to consider how its academic results compare with their own expectations and what kind of academic foundation their child would be building before transitioning to a high school elsewhere in the district or in one of the other Tolleson-area districts that serve high school students. The data does not show whether the school offers any specialized programs, such as dual-language tracks, gifted services, or career and technical education pathways. That information is simply absent from the available record and would need to be gathered from the school directly.
The housing market in the area around the school reflects a home value near the middle of the national range, with rents also around the national midpoint. The price-to-income ratio suggests that buying a home requires a substantial income relative to the national median, which is common across many Sun Belt metro areas. The unemployment rate and broader economic indicators show a stable economic environment, consistent with a metro area that has seen steady growth.
This is a school where a parent should expect to ask detailed questions about academic support, intervention strategies, and program offerings that are not captured in the available data. The size of the school, combined with its grade span, means a student could spend many years in the same building, making the quality of instruction and the school’s approach to student development the central factors in deciding whether it is the right fit. The test results point to a student body where the majority are not currently reaching grade-level benchmarks in reading and math, which may be a concern for some families and a context that others will want to understand more fully through a conversation with the school administration.
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