Original Research by School Decision on Mount Rainier High School
Mount Rainier High School sits in Des Moines, a mid-sized suburban waterfront city on Puget Sound midway between Seattle and Tacoma. The city is primarily residential, with housing across income levels, a small downtown shopping district near the marina, and several retirement homes. The school is part of Highline Public Schools, a district that has been actively modernizing its facilities and expanding its portfolio of choice schools, including a new Innovation Heights Academy and Maritime High School, which gives families in the area additional specialized secondary options beyond their neighborhood high school.
Mount Rainier is a regular public high school serving grades nine through twelve. Its enrollment is large for a single high school. The student body is highly diverse: the largest group is Hispanic, followed by White, Black, Asian, students of two or more races, Native Hawaiian or Pacific Islander, and a small number of American Indian or Alaska Native students. A substantial share of students qualify for free or reduced-price lunch, indicating that a significant portion of families have lower household incomes.
State testing results are available from a single school year, so there is no trend data to show whether performance is improving or declining over time. In English language arts, the share of students meeting state standards is above the midpoint of what is typical for a high school in the region. In math, the share meeting standards is lower, and in science, it falls in a mid-range. Parents may want to ask the school about specific supports in math, as that area shows room for growth. No graduation rate data was available, so a family looking for that metric should check directly with the school or the district.
The school environment and access data, including discipline rates, staffing ratios, chronic absenteeism, and course offerings, were not provided. This means a parent would need to explore those areas through school visits or conversations with current families to get a full picture of daily life at Mount Rainier.
Des Moines itself has grown at a modest pace, with a population that has risen gradually since the city’s incorporation decades ago. The major infrastructure development on the horizon is a new light rail station near Highline College, planned to open by 2026, which could make the area more connected to the broader Seattle-Tacoma region. The city is served by several highways and bus routes, and while walkable street life is concentrated near the marina and the Redondo boardwalk, most of the city is suburban residential with winding hillside streets.
The district’s ongoing school modernization program is reshaping facilities across Highline, including the relocation and rebuilding of schools like Pacific Middle School, which currently operates at an interim site. This means feeder patterns are in flux, and families moving into the area may want to confirm which middle schools feed into Mount Rainier High School for the coming years. The expansion of choice schools also gives students alternative pathways, such as a maritime-focused high school or a virtual academy, which could be a draw for families seeking a different model.
Overall, Mount Rainier High School is a large, diverse comprehensive high school located in a suburban waterfront community with evolving transportation and district infrastructure. Its academic profile shows a strength in English language arts and a softer spot in math, with only one year of test data available. The absence of graduation rate and other outcome measures means a family should proactively gather those details to fully assess the school’s track record. The district’s expansion of specialized schools provides additional options for high school education within the same public system.
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