Skyline Elementary School vs Riverdale Grade School

Skyline Elementary School edges out Riverdale Grade School by 0.3 points overall — 9.4 versus 9.1 out of 10 — and holds a higher state rank at #24 of 1,226 Oregon schools compared to Riverdale's #51. Both scores sit well inside the top 5% statewide, so the gap is narrow in absolute terms, but Skyline's ranking advantage is real and consistent across the composite.

The academic subscores flip the overall order: Riverdale Grade School leads on raw academics with a 9.9 versus Skyline Elementary School's 9.6, a meaningful three-tenths advantage for families who weigh tested proficiency most heavily. Where Skyline recovers its edge — and then some — is growth: a 9.2 growth score against Riverdale's 8.6, a 0.6-point gap suggesting Skyline does more to accelerate students year-over-year relative to their starting points, regardless of where they enter.

The two schools also differ structurally in size and staffing. Skyline Elementary School serves 218 students, while Riverdale Grade School enrolls 400 — nearly double. That scale difference shows up in the classroom: Riverdale's student-teacher ratio is 16.0:1 versus Skyline's 18.2:1, meaning Riverdale students average roughly two fewer classmates per teacher. Families who prioritize smaller class sizes will find that Riverdale's numbers are more favorable despite its larger total enrollment.

Both schools serve grades KG through 08, making them direct comparisons for the full elementary-to-middle stretch. Situated 15.1 miles apart in Portland, geography will be the deciding factor for many families, but those with flexibility will find two genuinely strong options where the real trade-off is Riverdale's higher academic ceiling versus Skyline's stronger growth engine and lower overall cost of admission to Portland's top 25.