For the 2026 school year, there are 10 public schools serving 1,590 students in Custer County, MT (there are 2 private schools, serving 209 private students). 88% of all K-12 students in Custer County, MT are educated in public schools (compared to the MT state average of 93%).
The top-ranked public schools in Custer County, MT are Riverview School, Kinsey School and S Y School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Custer County, MT public schools have an average math proficiency score of 26% (versus the Montana public school average of 37%), and reading proficiency score of 39% (versus the 46% statewide average). Schools in Custer County have an average ranking of 3/10, which is in the bottom 50% of Montana public schools.
Minority enrollment is 10% of the student body (majority American Indian and Hispanic), which is less than the Montana public school average of 24% (majority American Indian).
Best Public Schools in Custer County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Riverview School
(Math: ≥50% | Reading: ≥50% )
Rank:
Rank:
9/
Top 20%10
1734 Road 506
Miles City, MT 59301
(406) 421-5503
Miles City, MT 59301
(406) 421-5503
Gr: PK-8 | 8 students Student-teacher ratio: 8:1
Rank: #22.
Kinsey School
(Math: 40-59% | Reading: 50-59%)
Rank:
Rank:
8/
Top 30%10
7 Mastin Road
Kinsey, MT 59338
(406) 232-2440
Kinsey, MT 59338
(406) 232-2440
Gr: PK-6 | 52 students Student-teacher ratio: 13:1 Minority enrollment: 2%
Rank: #33.
S Y School
(Math: <50% | Reading: <50% )
Rank:
Rank:
8/
Top 30%10
1 Road 664
Miles City, MT 59301
(406) 421-5526
Miles City, MT 59301
(406) 421-5526
Gr: PK-8 | 6 students Student-teacher ratio: 6:1
Rank: #44.
Kircher School
(Math: 50-59% | Reading: 21-39%)
Rank:
Rank:
6/
Top 50%10
331 Kircher Creek Road
Miles City, MT 59301
(406) 234-2761
Miles City, MT 59301
(406) 234-2761
Gr: PK-8 | 51 students Student-teacher ratio: 13:1 Minority enrollment: 14%
Rank: #55.
Washington Middle School 6-8
(Math: 27% | Reading: 46%)
Rank:
Rank:
3/
Bottom 50%10
210 North 9th
Miles City, MT 59301
(406) 234-2084
Miles City, MT 59301
(406) 234-2084
Gr: 6-8 | 326 students Student-teacher ratio: 14:1 Minority enrollment: 9%
Rank: #66.
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 | 487 students Student-teacher ratio: 15:1 Minority enrollment: 12%
Rank: #77.
Lincoln School
(Math: 15-19% | Reading: 37%)
Rank:
Rank:
2/
Bottom 50%10
210 South Lake Ave
Miles City, MT 59301
(406) 234-1697
Miles City, MT 59301
(406) 234-1697
Gr: 3-5 | 166 students Student-teacher ratio: 14:1 Minority enrollment: 12%
Rank: #88.
Garfield School
(Math: 20-24% | Reading: 25-29%)
Rank:
Rank:
2/
Bottom 50%10
1015 Milwaukee
Miles City, MT 59301
(406) 234-4310
Miles City, MT 59301
(406) 234-4310
Gr: K-5 | 210 students Student-teacher ratio: 12:1 Minority enrollment: 14%
Rank: n/an/a
716 South Cale
Miles City, MT 59301
(406) 234-3890
Miles City, MT 59301
(406) 234-3890
Gr: PK-2 | 126 students Student-teacher ratio: 13:1 Minority enrollment: 21%
Rank: n/an/a
106 North Strevell Ave
Miles City, MT 59301
(406) 234-2888
Miles City, MT 59301
(406) 234-2888
Gr: PK-2 | 98 students Student-teacher ratio: 11:1 Minority enrollment: 3%
Frequently Asked Questions
What are the top-ranked public schools in Custer County, MT?
The top-ranked public schools in Custer County, MT include Riverview School, Kinsey School and S Y School.
How many public schools are located in Custer County?
12 public schools are located in Custer County.
What percentage of students in Custer County go to public school?
88% of all K-12 students in Custer County are educated in public schools (compared to the MT state average of 93%).
What is the racial composition of students in Custer County?
Custer County public schools minority enrollment is 10% of the student body (majority American Indian and Hispanic), which is less than the Montana public schools average of 24% (majority American Indian).
Which public schools in Custer County are often viewed compared to one another?
Popular comparisons of public schools in Custer County include: Lincoln School vs. Garfield School, Garfield School vs. Lincoln School
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