William Mason High School

As a high-enrollment secondary school in Mason, Ohio, William Mason High School hosts 3,435 students from grades 9 through 12, operated by Mason City. Compared to the state average of about 565 students per school, that is 508% larger than typical.

Across the 4 schools in Mason City (10,155 students total), William Mason High School accounts for its share of the district's footprint.

Looking at the student body, William Mason High School shows that the most-represented group is White (50%), with the rest of the student body spread across multiple groups; the rest breaks down as 32% Asian, 6% Hispanic, 6% Black, 6% multiracial. By comparison, Warren County as a whole is about 83% White, so the school skews considerably less White than its surroundings.

Looking at school resources, On paper, William Mason High School has 140 full-time-equivalent teachers, translating to a class-load average of around 24.5:1. The state averages around 17.7:1, so this campus is higher than the state norm typical. Around 17% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator.

On a residual basis (actual vs predicted given the student mix), William Mason High School tracks the demographic baseline. The model predicts 82.3% given the school's FRL share; actual proficiency is 84.8%.

Across the wider county, the surrounding county (Warren County) reports that the typical household earns roughly $110,132 per year, about 46% of the adult population holds a bachelor's degree or above, and roughly 4% of residents live below the federal poverty line. In all, Warren County runs 45 public schools (combined enrollment of about 39,898 students), of which William Mason High School is one.

Nearest neighbor: Mason Middle School, around 0.4 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts William Mason High School at 3rd of 7; the average score across the group is 82.4%.

The school occupies a bedroom-community site.

Looking at the recent track record. William Mason High School's enrollment has decreased 3% since 2018, when it stood at 3,544 (now 3,435). Over the same period, the White share fell from 68% to 50%. Class-load math has loosened: from 23.0:1 in 2018 to 24.5:1 in 2025.

On allk12, members of the William Mason High School community share and discuss sports schedules, lunch menu changes, and school spirit week. Posting is open to anyone connected to the school.