Deprecated: Return type of Phpfastcache\Util\ArrayObject::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 106 Deprecated: Return type of Phpfastcache\Util\ArrayObject::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 115 Deprecated: Return type of Phpfastcache\Util\ArrayObject::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 130 Deprecated: Return type of Phpfastcache\Util\ArrayObject::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 48 Deprecated: Return type of Phpfastcache\Util\ArrayObject::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 56 Deprecated: Return type of Phpfastcache\Util\ArrayObject::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Util/ArrayObject.php on line 80 Deprecated: Return type of Phpfastcache\Drivers\Memcached\Item::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /home/devzheng/workspace/psr/vendor/phpfastcache/phpfastcache/lib/Phpfastcache/Core/Item/ItemExtendedTrait.php on line 438 Best Public High Schools in Marion County (2026)
Public School Review - Established 2003

Best Marion County Public High Schools (2026)

For the 2026 school year, there are 5 public high schools serving 1,548 students in Marion County, MO.
The top-ranked public high schools in Marion County, MO are Hannibal Sr. High School, Mississippi Valley School and Palmyra High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Marion County, MO public high schools have an average math proficiency score of 47% (versus the Missouri public high school average of 36%), and reading proficiency score of 53% (versus the 51% statewide average). High schools in Marion County have an average ranking of 10/10, which is in the top 10% of Missouri public high schools.
Marion County, MO public high school have a Graduation Rate of 92%, which is more than the Missouri average of 89%.
The school with highest graduation rate is Palmyra High School, with ≥95% graduation rate. Read more about public school graduation rate statistics in Missouri or national school graduation rate statistics.
Minority enrollment is 14% of the student body (majority Black), which is less than the Missouri public high school average of 31% (majority Black).

Best Public High Schools in Marion County (2026)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Hannibal Sr. High School
(Math: 55% | Reading: 52%)
Rank:
9/
10
Top 20%
4500 Mcmasters Ave
Hannibal, MO 63401
(573) 221-2733
Gr: 9-12 | 1,048 students Student-teacher ratio: 16:1 Minority enrollment: 18%
Rank: #22.
Mississippi Valley School
Special Education School
(Math: <50% | Reading: <50%)
Rank:
8/
10
Top 30%
312 Munger Ln
Hannibal, MO 63401
(573) 248-2627
Gr: K-12 | 25 students Student-teacher ratio: 5:1 Minority enrollment: 16%
Rank: #33.
Palmyra High School
(Math: 25-29% | Reading: 60-64%)
Rank:
6/
10
Top 50%
1703 S Main St
Palmyra, MO 63461
(573) 769-2067
Gr: 9-12 | 331 students Student-teacher ratio: 12:1 Minority enrollment: 10%
Rank: #44.
Marion Co. High School
(Math: 40-49% | Reading: 30-39%)
Rank:
5/
10
Bottom 50%
2905 Hwy D
Philadelphia, MO 63463
(573) 439-5913
Gr: 7-12 | 98 students Student-teacher ratio: 9:1 Minority enrollment: 4%
Rank: n/an/a
Hannibal Career Tech. Center
Vocational School
4550 Mcmasters Ave
Hannibal, MO 63401
(573) 221-4430
Gr: 9-12

Frequently Asked Questions

What are the top-ranked public high schools in Marion County, MO?
The top-ranked public high schools in Marion County, MO include Hannibal Sr. High School, Mississippi Valley School and Palmyra High School.
How many public high schools are located in Marion County?
5 public high schools are located in Marion County.
What is the racial composition of students in Marion County?
Marion County public high schools minority enrollment is 14% of the student body (majority Black), which is less than the Missouri public high schools average of 31% (majority Black).
Which public high schools in Marion County are often viewed compared to one another?
Popular comparisons of public high schools in Marion County include: Hannibal Sr. High School vs. Palmyra High School, Palmyra High School vs. Hannibal Sr. High School

Recent Articles

AI Report Cards: Should Schools Evaluate AI Use?
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.

Quick Links

School Search Tools:
School by Type (MO):
Private & Boarding Schools:
State Links: