For the 2025 school year, there are 12 public schools serving 3,356 students in Washington County, MO (there are 1 private school, serving 55 private students). 98% of all K-12 students in Washington County, MO are educated in public schools (compared to the MO state average of 88%).
The top ranked public schools in Washington County, MO are Trojan Intermediate, Kingston Elementary School and Potosi Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Washington County, MO public schools have an average math proficiency score of 44% (versus the Missouri public school average of 39%), and reading proficiency score of 51% (versus the 43% statewide average). Schools in Washington County have an average ranking of 10/10, which is in the top 10% of Missouri public schools.
Minority enrollment is 4% of the student body (majority Hispanic), which is less than the Missouri public school average of 32% (majority Black).
Best Public Schools in Washington County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Trojan Intermediate
(Math: 60% | Reading: 58%)
Rank:
Rank:
9/
Top 20%10
367 Intermediate Dr
Potosi, MO 63664
(573) 436-8108
Potosi, MO 63664
(573) 436-8108
Grades: 4-6
| 469 students
Rank: #22.
Kingston Elementary School
(Math: 50-54% | Reading: 60-64%)
Rank:
Rank:
9/
Top 20%10
10047 Diamond Rd
Cadet, MO 63630
(573) 438-4982
Cadet, MO 63630
(573) 438-4982
Grades: 3-5
| 167 students
Rank: #33.
Potosi Elementary School
(Math: 50-54% | Reading: 55-59%)
Rank:
Rank:
9/
Top 20%10
205 State Hwy P
Potosi, MO 63664
(573) 438-2223
Potosi, MO 63664
(573) 438-2223
Grades: PK-3
| 610 students
Rank: #44.
Potosi High School
(Math: 40-44% | Reading: 55-59%)
Rank:
Rank:
8/
Top 30%10
1 Trojan Dr
Potosi, MO 63664
(573) 438-2156
Potosi, MO 63664
(573) 438-2156
Grades: 9-12
| 679 students
Rank: #55.
John A. Evans Middle School
(Math: 43% | Reading: 52%)
Rank:
Rank:
8/
Top 30%10
303 S Lead St
Potosi, MO 63664
(573) 438-2101
Potosi, MO 63664
(573) 438-2101
Grades: 7-8
| 291 students
Rank: #66.
Caledonia Elementary School
(Math: 40-44% | Reading: 40-44%)
Rank:
Rank:
6/
Top 50%10
1 Viking Dr
Caledonia, MO 63631
(573) 779-3446
Caledonia, MO 63631
(573) 779-3446
Grades: PK-6
| 178 students
Rank: #77.
Kingston High School
(Math: 20-24% | Reading: 50-59%)
Rank:
Rank:
5/
Bottom 50%10
10047 Diamond Rd
Cadet, MO 63630
(573) 438-4982
Cadet, MO 63630
(573) 438-4982
Grades: 9-12
| 248 students
Rank: #88.
Citadel School
Special Education School
(Math: <50% | Reading: <50% )
Rank:
Rank:
5/
Bottom 50%10
400 S Mine
Potosi, MO 63664
(573) 438-2472
Potosi, MO 63664
(573) 438-2472
Grades: K-12
| 4 students
Rank: #99.
Kingston Middle School
(Math: 30-34% | Reading: 40-44%)
Rank:
Rank:
5/
Bottom 50%10
10047 Diamond Rd
Cadet, MO 63630
(573) 438-4982
Cadet, MO 63630
(573) 438-4982
Grades: 6-8
| 171 students
Rank: #1010.
Valley High School
(Math: 15-19% | Reading: 30-34%)
Rank:
Rank:
2/
Bottom 50%10
1 Viking Dr
Caledonia, MO 63631
(573) 779-3515
Caledonia, MO 63631
(573) 779-3515
Grades: 7-12
| 171 students
Rank: #1111.
Richwoods Elementary School
(Math: 15-19% | Reading: 25-29%)
Rank:
Rank:
2/
Bottom 50%10
10788 State Hwy A
Richwoods, MO 63071
(573) 678-2257
Richwoods, MO 63071
(573) 678-2257
Grades: PK-8
| 147 students
Rank: n/an/a
10047 Diamond Rd
Cadet, MO 63630
(573) 438-4982
Cadet, MO 63630
(573) 438-4982
Grades: PK-2
| 221 students
Washington County Public Schools (Closed)
School
Location
Grades
Students
#2 Viking Drive
Caledonia, MO 63631
(573) 766-5689
Caledonia, MO 63631
(573) 766-5689
Grades: K-2
| 96 students
Citadel (Closed 2023)
Special Education School
400 South Mines
Potosi, MO 63664
(573) 438-2472
Potosi, MO 63664
(573) 438-2472
Grades: Inquire with school
| 10 students
Frequently Asked Questions
What are the top ranked public schools in Washington County, MO?
The top ranked public schools in Washington County, MO include Trojan Intermediate, Kingston Elementary School and Potosi Elementary School.
How many public schools are located in Washington County?
12 public schools are located in Washington County.
What percentage of students in Washington County go to public school?
98% of all K-12 students in Washington County are educated in public schools (compared to the MO state average of 88%).
What is the racial composition of students in Washington County?
Washington County public schools minority enrollment is 4% of the student body (majority Hispanic), which is less than the Missouri public schools average of 32% (majority Black).
Which public schools in Washington County are often viewed compared to one another?
Popular comparisons of public schools in Washington County include: Kingston High School vs. Potosi High School, Potosi High School vs. Kingston High School
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