Astor Elementary School vs Sauvie Island School

Astor Elementary School holds a slight edge in overall rating over Sauvie Island School — 9.2 versus 8.9 out of 10 — but the gap at the top of the list is tighter than it appears. Astor Elementary School ranks #34 of 1,226 Oregon schools, while Sauvie Island School sits at #78, placing both institutions comfortably in the top 10 percent statewide. Seven miles separate the two campuses in Portland, and families choosing between them are navigating a genuine trade-off rather than a clear winner.

The academic profiles cut in opposite directions depending on which measure matters most. Sauvie Island School outpaces Astor Elementary School on the academic proficiency score — 9.6 versus 8.9 — meaning students at Sauvie Island are testing at higher absolute levels. Astor Elementary School reverses that gap on growth, scoring 9.6 to Sauvie Island School's 8.4, indicating that Astor students make measurably stronger year-over-year gains regardless of where they start. A family with a student entering below grade level may find Astor's growth trajectory more actionable; a family prioritizing demonstrated proficiency benchmarks will see Sauvie Island's academic score as the differentiator.

The demographic and structural differences are significant. Astor Elementary School enrolls 375 students compared to Sauvie Island School's 214, and 64 percent of Astor students qualify for free or reduced lunch against 32 percent at Sauvie Island. The student-teacher ratios are nearly identical — 15.6:1 at Astor versus 15.3:1 at Sauvie Island — so class size is not a meaningful differentiator. The FRL gap does reflect meaningfully different community compositions, and Astor's high growth score in the context of serving a higher-need population speaks to the instructional environment there.

Structurally, both schools serve grades KG through 08, making them full K–8 programs with no required transition to middle school. Sauvie Island School operates as a charter, giving it more curricular autonomy than Astor Elementary School, a regular public school within Portland Public Schools. Families weighing enrollment should verify Sauvie Island's lottery or application process, since charter access is not guaranteed by address.