SERENITY HIGH

SERENITY HIGH is one of the very small four-year high schools in MCKINNEY, Texas, overseen by MCKINNEY ISD, with 3 students on its rolls from grades 11 through 12. Enrollment runs roughly 100% leaner than the state mean of about 796.

SERENITY HIGH is one of 33 schools operated by MCKINNEY ISD, a district that teaches 23,296 students overall.

Demographically, SERENITY HIGH shows that 67% of the student body identifies as White. The remainder comes out to 33% multiracial. The wider county runs roughly 54% White, putting the school's mix visibly more White than the area baseline.

On the income-and-resources front, SERENITY HIGH reports 1 full-time-equivalent teachers, putting the student-to-teacher ratio at about 3.0:1. The state averages around 15.1:1, so this campus is tighter than the state norm typical.

Zooming out to the county, census data for Collin County shows median household earnings sit near $121,600, 56% of adults hold a bachelor's degree or higher, and roughly 5% of residents live below the federal poverty line. In all, Collin County runs 338 public schools (combined enrollment of about 227,575 students), of which SERENITY HIGH is one.

Nearest neighbor: MCKINNEY NORTH H S, around 0.0 miles off. Within five miles, there are 8 other public schools.

The school occupies a residential site.

Trend over the last 7 years. Looking back 7 years, enrollment at SERENITY HIGH has shrank 70%, going from 10 students in 2018 to 3 in 2025. The Hispanic share of enrollment declined from 30% to 0% over that span. Class-load math has tightened: from 5.0:1 in 2018 to 3.0:1 in 2025.

In the discussion threads here, members of the SERENITY HIGH community share and discuss classroom updates, athletics, and weather closures. Members of the school community can share what they know.