Centennial High School

As a heavily attended senior high in Gresham, Oregon, Centennial High School enrolls 1,731 students from grades 9 through 12, operated by Centennial SD 28J. By comparison, Oregon's public schools average about 630 students each, so Centennial High School sits 175% bigger than that benchmark.

Across the 9 schools in Centennial SD 28J (5,304 students total), Centennial High School accounts for its share of the district's footprint.

On the student-mix side, Centennial High School logs that the largest single group is Hispanic at 35%, but no single group is in the majority. Beyond that, the school shows 33% White, 14% Asian, 8% Black, 6% multiracial. That is visibly more Hispanic than the county at large, where the share is closer to 14%.

On the resource side, The school lists 65 full-time-equivalent teachers, for a student-teacher ratio near 26.7:1. That figure is higher than the state norm's 19.8:1 average. Roughly 90% of students at Centennial High School qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Multnomah County (around 75%), the school's rate is meaningfully above typical.

After controlling for student poverty, Centennial High School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 27.7%, the actual is 22.1%, a residual of -5.6 points.

In the surrounding community, ACS estimates for Multnomah County put the typical household earns roughly $88,766 per year, 49% of adults hold a bachelor's degree or higher, and the poverty rate sits near 7%. Centennial High School is one of 169 public schools in Multnomah County (combined enrollment of about 81,096 students).

The closest other public school is Meadows Elementary, roughly 0.4 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Centennial High School at 2nd of 9; the average score across the group is 17.9%.

The school occupies a residential site.

Over the past 7-year window. Looking back 7 years, enrollment at Centennial High School has changed only slightly, going from 1,691 students in 2018 to 1,731 in 2025. Over the same period, the White share edged down from 43% to 33%.

On this page, the feed for Centennial High School typically covers enrollment questions, classroom assignments, and PTA news. The community welcomes input from current and former families.