Summary:
Two high schools serve grades 9–12 in St Helens School District 502 in Oregon: St Helens High School, with 823 students, and Plymouth High School, with 65 students — 888 high-school students in all. The district is ranked 106th of 141 in Oregon, in the 25th percentile with 1 star, and both schools share that district rating.
St Helens High School is the larger, comprehensive school and the district's academic anchor. Its 89.5% graduation rate is above the district (81.6%) and state (83.0%), and its 11th-grade science proficiency of 40.8% also beats the district (39.2%) and state (33.8%). Math is the clear weak point: 12.3% proficient, essentially tied with the district (12.0%) but far below the state (22.9%). Chronic absenteeism is 36.9%, better than the district (38.9%) but worse than the state (33.5%). Its latest rank is 161st of 271, in the 41st percentile with 2 stars. It spends $20,071 per student with a 21.3 student-teacher ratio.
Plymouth High School has a very different profile. Its graduation rate is 55.2% — 34.3 points below St Helens — and chronic absenteeism is 80.0%, more than double the district and state. Its latest listed rank is 267th of 268, in the 0th percentile with 0 stars (2023–2024), with no newer rank history. It spends $26,934 per student, about 34.2% more than St Helens, though high fixed costs at a 65-student school may explain that. Notably, all of Plymouth's OSAS test scores are shown as — because the state suppressed them, so its academic performance is unknown, not zero. Economic need is nearly identical at both schools (72.66% vs 73.85% free/reduced lunch), so the outcome gaps are not explained by that measure alone.
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