For the 2026 school year, there are 15 public schools serving 4,792 students in Marion County, MO (there are 2 private schools, serving 328 private students). 94% of all K-12 students in Marion County, MO are educated in public schools (compared to the MO state average of 88%).
The top-ranked public schools in Marion County, MO are Oakwood Elementary School, Marion Co. Elementary School and Hannibal Sr. High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Marion County, MO public schools have an average math proficiency score of 47% (versus the Missouri public school average of 41%), and reading proficiency score of 43% (versus the 43% statewide average). Schools in Marion County have an average ranking of 8/10, which is in the top 30% of Missouri public schools.
Minority enrollment is 14% of the student body (majority Black), which is less than the Missouri public school average of 33% (majority Black).
Best Public Schools in Marion County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Oakwood Elementary School
(Math: 75-79% | Reading: 65-69%)
Rank:
Rank:
10/
Top 5%10
3716 Market St
Hannibal, MO 63401
(573) 221-2747
Hannibal, MO 63401
(573) 221-2747
Gr: K-5 | 272 students Student-teacher ratio: 14:1 Minority enrollment: 10%
Rank: #22.
Marion Co. Elementary School
(Math: 60-69% | Reading: 60-69%)
Rank:
Rank:
10/
Top 5%10
2905 Hwy D
Philadelphia, MO 63463
(573) 439-5913
Philadelphia, MO 63463
(573) 439-5913
Gr: PK-6 | 109 students Student-teacher ratio: 10:1 Minority enrollment: 2%
Rank: #33.
Hannibal Sr. High School
(Math: 55% | Reading: 52%)
Rank:
Rank:
9/
Top 20%10
4500 Mcmasters Ave
Hannibal, MO 63401
(573) 221-2733
Hannibal, MO 63401
(573) 221-2733
Gr: 9-12 | 1,048 students Student-teacher ratio: 16:1 Minority enrollment: 18%
Rank: #4 - 54. - 5.
Mark Twain Elementary School
(Math: 55-59% | Reading: 45-49%)
Rank:
Rank:
8/
Top 30%10
2800 Bird St
Hannibal, MO 63401
(573) 221-0768
Hannibal, MO 63401
(573) 221-0768
Gr: K-5 | 376 students Student-teacher ratio: 13:1 Minority enrollment: 18%
Rank: #4 - 54. - 5.
Palmyra Elementary School
(Math: 55-59% | Reading: 45-49%)
Rank:
Rank:
8/
Top 30%10
600 S Ashland Ave
Palmyra, MO 63461
(573) 769-3736
Palmyra, MO 63461
(573) 769-3736
Gr: PK-4 | 452 students Student-teacher ratio: 13:1 Minority enrollment: 6%
Rank: #66.
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
Gr: K-12 | 25 students Student-teacher ratio: 5:1 Minority enrollment: 16%
Rank: #77.
Palmyra High School
(Math: 25-29% | Reading: 60-64%)
Rank:
Rank:
6/
Top 50%10
1703 S Main St
Palmyra, MO 63461
(573) 769-2067
Palmyra, MO 63461
(573) 769-2067
Gr: 9-12 | 331 students Student-teacher ratio: 12:1 Minority enrollment: 10%
Rank: #88.
Hannibal Middle School
(Math: 49% | Reading: 36%)
Rank:
Rank:
6/
Top 50%10
4700 Mcmasters Ave
Hannibal, MO 63401
(573) 221-5840
Hannibal, MO 63401
(573) 221-5840
Gr: 6-8 | 674 students Student-teacher ratio: 11:1 Minority enrollment: 18%
Rank: #99.
Veterans Elementary School
(Math: 38% | Reading: 40-44%)
Rank:
Rank:
5/
Bottom 50%10
790 N Veterans Rd
Hannibal, MO 63401
(573) 221-0649
Hannibal, MO 63401
(573) 221-0649
Gr: K-5 | 403 students Student-teacher ratio: 12:1 Minority enrollment: 25%
Rank: #1010.
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
Gr: 7-12 | 98 students Student-teacher ratio: 9:1 Minority enrollment: 4%
Rank: #1111.
Palmyra Middle School
(Math: 39% | Reading: 35%)
Rank:
Rank:
4/
Bottom 50%10
600 W Line St
Palmyra, MO 63461
(573) 769-2174
Palmyra, MO 63461
(573) 769-2174
Gr: 5-8 | 343 students Student-teacher ratio: 12:1 Minority enrollment: 8%
Rank: #1212.
A. D. Stowell Elementary School
(Math: 30-34% | Reading: 35-39%)
Rank:
Rank:
4/
Bottom 50%10
500 Union
Hannibal, MO 63401
(573) 221-0980
Hannibal, MO 63401
(573) 221-0980
Gr: K-5 | 221 students Student-teacher ratio: 11:1 Minority enrollment: 12%
Rank: #1313.
Eugene Field Elementary School
(Math: 10-14% | Reading: 15-19%)
Rank:
Rank:
1/
Bottom 50%10
1405 Pearl St
Hannibal, MO 63401
(573) 221-1050
Hannibal, MO 63401
(573) 221-1050
Gr: PK-5 | 190 students Student-teacher ratio: 10:1 Minority enrollment: 36%
Rank: n/an/a
544 N Veterans Rd
Hannibal, MO 63401
(573) 221-3054
Hannibal, MO 63401
(573) 221-3054
Gr: PK | 182 students Student-teacher ratio: 15:1 Minority enrollment: 26%
Rank: n/an/a
Hannibal Career Tech. Center
Vocational School
4550 Mcmasters Ave
Hannibal, MO 63401
(573) 221-4430
Hannibal, MO 63401
(573) 221-4430
Gr: 9-12
Frequently Asked Questions
What are the top-ranked public schools in Marion County, MO?
The top-ranked public schools in Marion County, MO include Oakwood Elementary School, Marion Co. Elementary School and Hannibal Sr. High School.
How many public schools are located in Marion County?
15 public schools are located in Marion County.
What percentage of students in Marion County go to public school?
94% of all K-12 students in Marion County are educated in public schools (compared to the MO state average of 88%).
What is the racial composition of students in Marion County?
Marion County public schools minority enrollment is 14% of the student body (majority Black), which is less than the Missouri public schools average of 33% (majority Black).
Which public schools in Marion County are often viewed compared to one another?
Popular comparisons of public schools in Marion County include: Hannibal Sr. High School vs. Palmyra High School, Palmyra Middle School vs. Palmyra Elementary School, Palmyra High School vs. Hannibal Sr. High School
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