For the 2025 school year, there are 4 public middle schools serving 1,138 students in Marion County, MO.
The top ranked public middle schools in Marion County, MO are Mississippi Valley School, Hannibal Middle School and Marion Co. High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Marion County, MO public middle schools have an average math proficiency score of 42% (versus the Missouri public middle school average of 38%), and reading proficiency score of 36% (versus the 40% statewide average). Middle schools in Marion County have an average ranking of 6/10, which is in the top 50% of Missouri public middle schools.
Minority enrollment is 13% of the student body (majority Black), which is less than the Missouri public middle school average of 31% (majority Black).
Best Public Middle Schools in Marion County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Mississippi Valley School
Special Education School
(Math: <50% | Reading: <50%)
Rank:
Rank:
8/
Top 30%10
312 Munger Ln
Hannibal, MO 63401
(573) 248-2627
Hannibal, MO 63401
(573) 248-2627
Grades: K-12
| 26 students
Rank: #22.
Hannibal Middle School
(Math: 45% | Reading: 36%)
Rank:
Rank:
5/
Bottom 50%10
4700 Mcmasters Ave
Hannibal, MO 63401
(573) 221-5840
Hannibal, MO 63401
(573) 221-5840
Grades: 6-8
| 656 students
Rank: #33.
Marion Co. High School
(Math: 40-49% | Reading: 30-39%)
Rank:
Rank:
5/
Bottom 50%10
2905 Hwy D
Philadelphia, MO 63463
(573) 439-5913
Philadelphia, MO 63463
(573) 439-5913
Grades: 7-12
| 112 students
Rank: #44.
Palmyra Middle School
(Math: 33% | Reading: 35%)
Rank:
Rank:
4/
Bottom 50%10
600 W Line St
Palmyra, MO 63461
(573) 769-2174
Palmyra, MO 63461
(573) 769-2174
Grades: 5-8
| 344 students
Marion County Public Schools (Closed)
School
Location
Grades
Students
Mississippi Valley (Closed 2023)
Special Education School
312 Munger Lane
Hannibal, MO 63401
(573) 221-1857
Hannibal, MO 63401
(573) 221-1857
Grades: Inquire with school
| 27 students
Frequently Asked Questions
What are the top ranked public middle schools in Marion County, MO?
The top ranked public middle schools in Marion County, MO include Mississippi Valley School, Hannibal Middle School and Marion Co. High School.
How many public middle schools are located in Marion County?
4 public middle schools are located in Marion County.
What is the racial composition of students in Marion County?
Marion County public middle schools minority enrollment is 13% of the student body (majority Black), which is less than the Missouri public middle schools average of 31% (majority Black).
Recent Articles

Segregation in K-12 Education: Colonial Era
Explore the origins of educational segregation during the colonial era and the differential treatment of Native American, African American, and white students. This article delves into the historical context, policies, and societal attitudes that shaped early education in colonial America, highlighting the disparities and injustices that persisted within the schooling systems of that time.

2011 Classroom Size Update: Are Classes Still Growing Larger?
Since the recession, public school classrooms have seen major budget cuts - and many increases in class sizes. How is the situation in 2011? Read this article to find out.

Will Single Sex Classrooms Save Public Schools?
Learn about the benefits of single sex classrooms and why public schools are hoping this type of classroom will save the American school system.