For the 2026 school year, there are 2 public high schools serving 1,027 students in Union, MO.
The top-ranked public high schools in Union, MO are Union High School and Autumn Hill School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Union, MO public high schools have an average math proficiency score of 41% (versus the Missouri public high school average of 36%), and reading proficiency score of 60% (versus the 51% statewide average). High schools in Union have an average ranking of 8/10, which is in the top 30% of Missouri public high schools.
Union, MO public high school have a Graduation Rate of 82%, which is less than the Missouri average of 89%.
The school with highest graduation rate is Union High School, with 82% graduation rate. Read more about public school graduation rate statistics in Missouri or national school graduation rate statistics.
Minority enrollment is 9% of the student body (majority Hispanic), which is less than the Missouri public high school average of 30% (majority Black).
Best Public High Schools in Union, MO (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Union High School
(Math: 43% | Reading: 64%)
Rank:
Rank:
8/
Top 30%10
1217 West Main
Union, MO 63084
(636) 583-2513
Union, MO 63084
(636) 583-2513
Gr: 9-12 | 993 students Student-teacher ratio: 16:1 Minority enrollment: 9%
Rank: #22.
Autumn Hill School
Special Education School
(Math: ≤20% | Reading: ≤20%)
Rank:
Rank:
1/
Bottom 50%10
300 Autumn Hill Dr
Union, MO 63084
(636) 583-5959
Union, MO 63084
(636) 583-5959
Gr: K-12 | 34 students Student-teacher ratio: 5:1 Minority enrollment: 6%
Union, Missouri Public Schools (Closed)
School
Location
Quick Facts
Autumn Hill (Closed 2023)
Special Education School
300 Independence Drive
Union, MO 63084
(636) 583-5959
Union, MO 63084
(636) 583-5959
Gr: Inquire with school | 28 students Student-teacher ratio: 6:1
Frequently Asked Questions
What are the top-ranked public high schools in Union, MO?
The top-ranked public high schools in Union, MO include Union High School and Autumn Hill School.
How many public high schools are located in Union?
2 public high schools are located in Union.
What is the racial composition of students in Union?
Union public high schools minority enrollment is 9% of the student body (majority Hispanic), which is less than the Missouri public high schools average of 30% (majority Black).
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