Gladstone High School

Gladstone High School is a senior high of reasonably sized scale in Gladstone, Oregon, overseen by Gladstone SD 115, educateing 559 students in grades 9 through 12.

Across the 4 schools in Gladstone SD 115 (1,600 students total), Gladstone High School accounts for its share of the district's footprint.

Demographically, Gladstone High School reports that the largest single group is White, at 70% of enrollment; the rest is composed of 19% Hispanic, 7% multiracial. The wider county runs roughly 79% White, putting the school's mix noticeably less White than the area baseline.

In terms of school funding signals, On paper, Gladstone High School has 27 full-time-equivalent teachers, translating to a class-load average of around 20.6:1. The state averages around 19.8:1, so this campus is higher than the state norm typical. About 63% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. That share is higher than Clackamas County's rate of about 50%.

After controlling for student poverty, Gladstone High School tracks the demographic baseline. The model predicts 38.2% given the school's FRL share; actual proficiency is 27.1%.

Across the wider county, community-level numbers for Clackamas County indicate median household earnings sit near $103,517, about 41% of the adult population holds a bachelor's degree or above, and roughly 5% of residents live below the federal poverty line. Across Clackamas County's 118 public schools (combined enrollment of about 57,601 students), Gladstone High School is one campus in the mix.

The closest other public school is Gladstone Center for Children and Families, roughly 0.2 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Gladstone High School at 5th of 7; the average score across the group is 34.7%.

The campus sits in an outer-ring setting.

Five-year trend. Gladstone High School's enrollment has declined 15% since 2018, when it stood at 659 (now 559). Class-load math has tightened: from 23.3:1 in 2018 to 20.6:1 in 2025.

On this page, members of the Gladstone High School community share and discuss school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.