Flagstaff High School

Flagstaff High School is one of the big 9-12 campuss in FLAGSTAFF, Arizona, operated by Flagstaff Unified District (4192), with 1,631 students on its rolls from grades 9 through 12. That puts it 158% bigger than the typical public school in Arizona, which averages around 631 students.

Within Flagstaff Unified District (4192), which oversees 16 schools and 8,595 students, Flagstaff High School is one campus in the system.

Demographically, Flagstaff High School logs that the largest single group is White at 46%, but no single group is in the majority. The remainder is composed of 27% Native American, 22% Hispanic, 3% multiracial. That is noticeably less White than the county at large, where the share is closer to 56%.

Looking at school resources, On paper, Flagstaff High School has 84 full-time-equivalent teachers, translating to a class-load average of around 19.3:1. The state averages around 20.2:1, so this campus is tighter than the state norm typical.

Across the wider county, census data for Coconino County shows median household income runs about $72,966, about 40% of the adult population holds a bachelor's degree or above, and roughly 10% of residents live below the federal poverty line. Across Coconino County's 80 public schools (combined enrollment of about 18,262 students), Flagstaff High School is one campus in the mix.

Nearest neighbor: Eva Marshall Elementary School, around 0.2 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius.

Geographically, the school is in an urban area.

Five-year trend. Flagstaff High School's enrollment has grew 9% since 2018, when it stood at 1,496 (now 1,631). Over the same period, the White share contracted from 51% to 46%. Class-load math has fell: from 22.9:1 in 2018 to 19.3:1 in 2025.

On the community side, members of the Flagstaff High School community share and discuss classroom updates, athletics, and weather closures. Parents, students, alumni, and staff are welcome to weigh in.