Best Public Schools in Zip Code 98057

ZIP code 98057 has one public school: Sartori Elementary School, serving kindergarten through fifth grade in the Renton School District. The school enrolls about 510 students, so families looking in this area are primarily choosing among elementary options rather than comparing multiple schools within the ZIP code. Sartori stands out for consistently strong academic results and is the only school listed for this community in the available data.

Sartori Elementary School performed well above both district and Washington averages in 2025–2026. Proficiency rates were 67.07% in English language arts, 73.98% in math, and 74.70% in science, compared with approximately 47%, 43%, and 46% in the Renton School District. Math was the school’s clearest strength, especially in fourth grade, where 82.93% of students were proficient. Fourth grade was also strong in English language arts, at 76.83%. Fifth-grade science performance was another highlight, with 74.70% proficiency compared with 49.70% in the district and 54.85% statewide.

For parents, the overall picture is of a relatively high-performing elementary school. Sartori Elementary School ranked in the 84th to 89th statewide percentiles over the last three reported years and maintained a four-star rating. Its main area to watch is third-grade English language arts, which was the school’s lowest reported result at 53.66%, although that still exceeded both district and state levels. From the prior year, science improved by 5.56 percentage points, math remained nearly steady, and English language arts declined modestly. The school reported a 17.3-to-1 student-teacher ratio, 28.43% of students qualifying for free or reduced-price lunch, and $19,836 in per-student spending; these figures provide context but do not by themselves explain school performance.