Best Schools in Portland, Maine

Portland's public school system covers 15 ranked schools across elementary and high school levels. The city-wide average sits at 5.6 out of 10 — a middle-of-the-road baseline that masks real variation between individual campuses. Only 1 school, just 7% of the ranked total, clears the 7-out-of-10 threshold. That tight concentration at the top means the gap between the city's best and the broader field is significant.

Casco Bay High School sits alone at the top with an 8.4 score — the only Portland school above 7, and a clear outlier in the local landscape. For families with high-school-age students, Casco Bay is the strongest public option in the city by a notable margin. Baxter Academy for Technology and Sciences rounds out the top five among high schools at 6.3, giving families two public high school choices at opposite ends of the top-performer range. The 2.1-point gap between them is worth noting: these are meaningfully different performance tiers, not near-equals.

At the elementary level, options cluster tightly in the mid-6s. Presumpscot School leads that group at 6.9, followed by Ocean Avenue at 6.5 and Amanda C Rowe at 6.4. All three fall within half a point of each other, so score differences alone won't drive the decision. Neighborhood access, program fit, and school culture carry more weight when scores are this close.

Portland's 5.6 city average reflects one strong outlier anchoring a field where most campuses fall well below the 7-point mark. Parents should evaluate each school's individual score against the specific grade level they need rather than relying on the city figure. High school families have a clear first choice in Casco Bay. Elementary families have three comparable upper-tier options and should weigh location and program before deciding.