For the 2025-26 school year, there are 4 public high schools serving 840 students in Oregon County, MO.
The top ranked public high schools in Oregon County, MO are Thayer Sr. High School, Couch High School and Alton High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Oregon County, MO public high schools have an average math proficiency score of 35% (versus the Missouri public high school average of 36%), and reading proficiency score of 43% (versus the 51% statewide average). High schools in Oregon County have an average ranking of 4/10, which is in the bottom 50% of Missouri public high schools.
Oregon County, MO public high school have a Graduation Rate of 87%, which is less than the Missouri average of 89%.
The school with highest graduation rate is Alton High School, with ≥90% graduation rate. Read more about public school graduation rate statistics in Missouri or national school graduation rate statistics.
Minority enrollment is 6% 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 Oregon County (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Thayer Sr. High School
(Math: 50-54% | Reading: 55-59%)
Rank:
Rank:
9/
Top 20%10
401 E Walnut St
Thayer, MO 65791
(417) 264-4600
Thayer, MO 65791
(417) 264-4600
Gr: 7-12 | 345 students Student-teacher ratio: 12:1 Minority enrollment: 6%
Rank: #22.
Couch High School
(Math: 20-29% | Reading: 40-49%)
Rank:
Rank:
4/
Bottom 50%10
22206 Mo 142
Myrtle, MO 65778
(417) 938-4212
Myrtle, MO 65778
(417) 938-4212
Gr: 7-12 | 95 students Student-teacher ratio: 9:1 Minority enrollment: 4%
Rank: #33.
Alton High School
(Math: 20-24% | Reading: 30-34%)
Rank:
Rank:
2/
Bottom 50%10
505 School Street
Alton, MO 65606
(417) 778-7215
Alton, MO 65606
(417) 778-7215
Gr: 6-12 | 313 students Student-teacher ratio: 9:1 Minority enrollment: 4%
Rank: #44.
Koshkonong High School
(Math: ≤20% | Reading: 21-39%)
Rank:
Rank:
2/
Bottom 50%10
School St
Koshkonong, MO 65692
(417) 867-5601
Koshkonong, MO 65692
(417) 867-5601
Gr: 9-12 | 87 students Student-teacher ratio: 9:1 Minority enrollment: 13%
Frequently Asked Questions
What are the top ranked public high schools in Oregon County, MO?
The top ranked public high schools in Oregon County, MO include Thayer Sr. High School, Couch High School and Alton High School.
How many public high schools are located in Oregon County?
4 public high schools are located in Oregon County.
What is the racial composition of students in Oregon County?
Oregon County public high schools minority enrollment is 6% of the student body (majority Hispanic), which is less than the Missouri public high schools average of 30% (majority Black).
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