For the 2026 school year, there is 1 public high school serving 492 students in Custer County, MT.
The top-ranked public high school in Custer County, MT is Custer Co District High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Custer County, MT public high school have an average math proficiency score of 22% (versus the Montana public high school average of 32%), and reading proficiency score of 37% (versus the 43% statewide average). High schools in Custer County have an average ranking of 3/10, which is in the bottom 50% of Montana public high schools.
Custer County, MT public high school have a Graduation Rate of 82%, which is less than the Montana average of 83%.
The school with highest graduation rate is Custer Co District High School, with 80-84% graduation rate. Read more about public school graduation rate statistics in Montana or national school graduation rate statistics.
Minority enrollment is 10% of the student body (majority Hispanic and American Indian), which is less than the Montana public high school average of 23% (majority American Indian).
Best Public High Schools in Custer County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Custer Co District High School
(Math: 20-24% | Reading: 35-39%)
Rank:
Rank:
2/
Bottom 50%10
20 South Center Ave
Miles City, MT 59301
(406) 234-4920
Miles City, MT 59301
(406) 234-4920
Gr: 9-12 | 492 students Student-teacher ratio: 16:1 Minority enrollment: 10%
Custer County Public Schools (Closed)
School
Location
Quick Facts
1533 Road 403
Ismay, MT 59336
(406) 772-5888
Ismay, MT 59336
(406) 772-5888
Gr: PK-8 | 4 students Student-teacher ratio: 4:1
Frequently Asked Questions
What are the top-ranked public high schools in Custer County, MT?
The top-ranked public high schools in Custer County, MT include Custer Co District High School.
How many public high schools are located in Custer County?
1 public high schools are located in Custer County.
What is the racial composition of students in Custer County?
Custer County public high schools minority enrollment is 10% of the student body (majority Hispanic and American Indian), which is less than the Montana public high schools average of 23% (majority American Indian).
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