For the 2025-26 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 (2025-26)
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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