For the 2026 school year, there are 3 public high schools serving 448 students in Sullivan County, MO.
The top-ranked public high schools in Sullivan County, MO are Green City High School, Newtown-harris High School and Milan C-2 High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Sullivan County, MO public high schools have an average math proficiency score of 34% (versus the Missouri public high school average of 36%), and reading proficiency score of 43% (versus the 51% statewide average). High schools in Sullivan County have an average ranking of 4/10, which is in the bottom 50% of Missouri public high schools.
Sullivan County, MO public high school have a Graduation Rate of 88%, which is less than the Missouri average of 89%.
The school with highest graduation rate is Milan C-2 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 35% of the student body (majority Hispanic), which is more than the Missouri public high school average of 30% (majority Black).
Best Public High Schools in Sullivan County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Green City High School
(Math: 55-59% | Reading: 50-59%)
Rank:
Rank:
9/
Top 20%10
301 N East St
Green City, MO 63545
(660) 874-4127
Green City, MO 63545
(660) 874-4127
Gr: 6-12 | 137 students Student-teacher ratio: 11:1 Minority enrollment: 10%
Rank: #22.
Newtown-harris High School
(Math: 21-39% | Reading: 40-59%)
Rank:
Rank:
5/
Bottom 50%10
306 N Main
Newtown, MO 64667
(660) 794-2245
Newtown, MO 64667
(660) 794-2245
Gr: 7-12 | 42 students Student-teacher ratio: 5:1 Minority enrollment: 9%
Rank: #33.
Milan C-2 High School
(Math: 20-24% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
373 S Market St
Milan, MO 63556
(660) 265-1412
Milan, MO 63556
(660) 265-1412
Gr: 7-12 | 269 students Student-teacher ratio: 10:1 Minority enrollment: 51%
Sullivan County Public Schools (Closed)
School
Location
Quick Facts
373 S Market St
Milan, MO 63556
(660) 265-1407
Milan, MO 63556
(660) 265-1407
Gr: 5-8 | 187 students Student-teacher ratio: 12:1 Minority enrollment: 43%
Frequently Asked Questions
What are the top-ranked public high schools in Sullivan County, MO?
The top-ranked public high schools in Sullivan County, MO include Green City High School, Newtown-harris High School and Milan C-2 High School.
How many public high schools are located in Sullivan County?
3 public high schools are located in Sullivan County.
What is the racial composition of students in Sullivan County?
Sullivan County public high schools minority enrollment is 35% of the student body (majority Hispanic), which is more than the Missouri public high schools average of 30% (majority Black).
Recent Articles
Spring Parent-Teacher Conferences: Key Questions
Spring Parent-Teacher Conferences: Questions Every Parent Should Ask to support academic growth, social development, and 2026 classroom goals.
Prepare for Spring Tests Without Anxiety
Learn how to prepare for spring standardized tests without increasing anxiety using proven strategies for families and schools.
Why Public Schools Are Launching Marketing Campaigns in 2026
Discover why public schools are launching marketing campaigns in 2026 and how enrollment shifts, school choice, and funding pressures are driving change.