Marshfield Senior High School

Marshfield Senior High School is one of the average-sized high schools in Coos Bay, Oregon, operated by Coos Bay SD 9, with 798 students on its rolls from grades 9 through 12. Compared to the state average of about 630 students per school, that is 27% larger than typical.

Coos Bay SD 9 comprises 9 schools with combined enrollment of 2,907 students; Marshfield Senior High School is among them.

In terms of who attends, Marshfield Senior High School records that 69% of the student body identifies as White; the rest looks like 17% Hispanic, 9% multiracial, 3% Native American. That is visibly less White than the county at large, where the share is closer to 84%.

On the income-and-resources front, Marshfield Senior High School reports 39 full-time-equivalent teachers, putting the student-to-teacher ratio at about 20.5:1. That tracks the state average closely. Around 29% of the student body qualifies for free or reduced-price meals, which schools and policymakers use as a rough income-mix signal. That share is below Coos County's rate of about 72%.

Adjusting for the school's free-and-reduced-lunch share, Marshfield Senior High School falls in the UNDERPERFORMING tier of the BeatsExpectations residual. Given its student profile, a typical campus would land near 51.4%; this one comes in at 29.6%, -21.7 points off the demographic line.

Zooming out to the county, Coos County reports that the typical household earns roughly $62,143 per year, 23% of adults hold a bachelor's degree or higher, and the poverty rate sits near 12%. Across Coos County's 28 public schools (combined enrollment of about 8,218 students), Marshfield Senior High School is one campus in the mix.

Marshfield Junior High is the nearest neighboring public school, about 0.1 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. On composite proficiency, Marshfield Senior High School comes 4th of 6 in the immediate cluster, beneath the nearby-schools average of 32.6%.

The campus sits in a small-town setting.

Looking at the recent track record. Looking back 7 years, enrollment at Marshfield Senior High School has declined 19%, going from 981 students in 2018 to 798 in 2025. Class-load math has narrowed: from 22.7:1 in 2018 to 20.5:1 in 2025.

On this page, the feed for Marshfield Senior High School typically covers sports schedules, lunch menu changes, and school spirit week. Contributors range from current parents to recent graduates and teachers.