Clinton County R-III School District

800 W Frost
Plattsburg, MO 64477-0287
(District boundaries shown in map)
3/
10
Bottom 50%
For the 2025-26 school year, there is 1 public high school serving 187 students in Clinton County R-III School District. This district's average high testing ranking is 5/10, which is in the bottom 50% of public high schools in Missouri.
Public High School in Clinton County R-III School District have an average math proficiency score of 45% (versus the Missouri public high school average of 36%), and reading proficiency score of 35% (versus the 51% statewide average).
Public High School in Clinton County R-III School District have a Graduation Rate of 90%, which is more than the Missouri average of 89%.
The school with highest graduation rate is Plattsburg 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 25% of the student body (majority Black and Hispanic), which is less than the Missouri public high school average of 30% (majority Black).

Overview

This School District
This State (MO)
# Schools
3 Schools
753 Schools
# Students
704 Students
293,732 Students
# Teachers
59 Teachers
22,922 Teachers
Student-Teacher Ratio
12:1
12:1

Student By Grade

District Rank

Clinton County R-III School District, which is ranked within the bottom 50% of all 553 school districts in Missouri (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.
The school district's graduation rate of 80-89% has decreased from 90% over five school years.
This School District
State Average (MO)
#422 out of 555 school districts
(Bottom 50%)
34%
40%
29%
43%
15-19%
38%
(21-22)
80-89%
90%

Students by Ethnicity:

0.31
0.49
% American Indian
n/a
n/a
% Asian
1%
2%
% Hispanic
3%
8%
% Black
2%
15%
% White
83%
70%
% Hawaiian
n/a
n/a
% Two or more races
11%
5%
All Ethnic Groups

District Revenue and Spending

The revenue/student of $13,543 in this school district is less than the state median of $15,081. The school district revenue/student has declined by 9% over four school years.
The school district's spending/student of $17,815 is higher than the state median of $13,908. The school district spending/student has declined by 9% over four school years.
This School District
This State (MO)
Total Revenue
$10 MM
$13,447 MM
Spending
$13 MM
$12,401 MM
Revenue / Student
$13,543
$15,081
Spending / Student
$17,815
$13,908

Best Clinton County R-III School District Public High Schools (2025-26)

School
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Plattsburg High School
(Math: 40-49% | Reading: 30-39%)
Rank:
5/
10
Bottom 50%
800 W Frost St
Plattsburg, MO 64477
(816) 539-2184
Gr: 9-12 | 187 students Student-teacher ratio: 10:1 Minority enrollment: 25%

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Quick Facts (2025-26)

  • District size: 3 schools
  • Grades: PK-12
  • Enrollment: 704 students
  • Student-Teacher Ratio: 12:1
  • Minority Enrollment: 17%
  • : 80-89% (Btm 50% in MO)
  • : Bottom 50%
  • : 34% (Btm 50%)
  • : 29% (Btm 50%)
  • : 15-19% (Btm 50%)
  • Source: National Center for Education Statistics (NCES), MO Dept. of Education

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