Custer High School
School pathway
Test scores
EDFacts (federal) 2020-21 . % Proficient (SY 20-21)What this means: On the EDFacts (federal), Montana's statewide test, about 48 of every 100 students at this school read and write at grade level. The Montana average is about 47 of 100.
7-year change
SY 2017-18 vs SY 2024-25About Custer High School
Custer High School is an one-room-style high school in Custer, Montana, one of the schools within Custer K-12 Schools. The school enrolls 26 students in grades 9 through 12. Enrollment runs roughly 89% smaller than the state mean of about 238.
Within Custer K-12 Schools, which oversees 3 schools and 88 students, Custer High School is one campus in the system.
Demographically, Custer High School reports that the student body is overwhelmingly White (96%); the rest comes out to 4% Asian. The wider county runs roughly 86% White, putting the school's mix visibly more White than the area baseline.
On the income-and-resources front, The school reports having 5 full-time-equivalent teachers, for a student-teacher ratio near 4.9:1. That figure is tighter than the state norm's 11.3:1 average. Around 31% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator. By comparison, Yellowstone County runs at roughly 48%, so the school's eligibility rate is lower than the surrounding baseline.
Around the school, census data for Yellowstone County shows the typical household earns roughly $76,570 per year, 34% of adults hold a bachelor's degree or higher, and the poverty rate sits near 7%. Custer High School is one of 68 public schools in Yellowstone County (combined enrollment of about 23,853 students).
Nearest neighbor: Custer School, around 0.0 miles off. Counting just inside five miles, 2 other public schools cluster around Custer High School.
The school occupies a countryside site.
Trend over the last 7 years. Looking back 7 years, enrollment at Custer High School has rose 37%, going from 19 students in 2018 to 26 in 2025. White enrollment moved from 79% to 96% across the same window.
On this page, the feed for Custer High School typically covers classroom updates, athletics, and weather closures. Members of the school community can share what they know.
Yellowstone County at a glance
View full county profileQuick facts
Related schools
- Custer SchoolElementary · 49 students
- Custer 7-8Middle · 13 students
- Custer SchoolElementary · 49 students
- Custer 7-8Middle · 13 students
- Custer School0.0 mi · 49
- Custer 7-80.0 mi · 13
- Hysham High School19.3 mi · 28
- Hysham School19.3 mi · 53
- Hysham 7-819.3 mi · 11
- Hardin High School27.2 mi · 515