St. Marys Junior Senior High

Set in St Marys, Kansas, St. Marys Junior Senior High is a compact secondary school, operated by Kaw Valley. It caters to 246 students across grades 7 through 12. By comparison, Kansas's public schools average about 410 students each, so St. Marys Junior Senior High sits 40% smaller than that benchmark.

Kaw Valley comprises 4 schools with combined enrollment of 1,100 students; St. Marys Junior Senior High is among them.

In terms of who attends, St. Marys Junior Senior High logs that 82% of students identify as White, making the school strongly White-majority. Beyond that, the school lists 9% Hispanic, 4% multiracial, 2% Black, 2% Native American.

On the income-and-resources front, St. Marys Junior Senior High logs 26 full-time-equivalent teachers, putting the student-to-teacher ratio at about 9.5:1. That figure is tighter than the state norm's 11.9:1 average. An estimated 43% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. By comparison, Pottawatomie County runs at roughly 31%, so the school's eligibility rate is somewhat above the surrounding baseline.

Adjusting for the school's free-and-reduced-lunch share, St. Marys Junior Senior High performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 41.6%, the actual is 28.6%, a residual of -13.0 points.

Across the wider county, community-level numbers for Pottawatomie County indicate the typical household earns roughly $92,325 per year, roughly 38% of adults have completed at least a four-year degree, and the poverty rate sits near 4%. Across Pottawatomie County's 16 public schools (combined enrollment of about 4,283 students), St. Marys Junior Senior High is one campus in the mix.

Nearest neighbor: St Marys Elem, around 0.2 miles off. 4 of the 8 nearest public schools sit inside a ten-mile radius, suggesting a relatively low-density school footprint. Among the 8 schools in that immediate cluster with test data (this one included), St. Marys Junior Senior High ranks 7th on composite proficiency, beneath the local average of 46.5%.

The school occupies a small-town site.

Over the past 7-year window. Over the past 7-year window, the student count shrank 13%: 282 students in 2018 compared to 246 in 2025.

On allk12, posts here usually surface around science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.