For the 2026 school year, there are 8 public elementary schools serving 1,967 students in Washington County, MO.
The top-ranked public elementary schools in Washington County, MO are Potosi Elementary School, Kingston Elementary School and Trojan Intermediate. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Washington County, MO public elementary schools have an average math proficiency score of 45% (versus the Missouri public elementary school average of 42%), and reading proficiency score of 52% (versus the 42% statewide average). Elementary schools in Washington County have an average ranking of 9/10, which is in the top 20% of Missouri public elementary schools.
Minority enrollment is 4% of the student body (majority Hispanic), which is less than the Missouri public elementary school average of 33% (majority Black).
Best Public Elementary Schools in Washington County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Potosi Elementary School
(Math: 55-59% | 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
Gr: PK-3 | 683 students Student-teacher ratio: 13:1 Minority enrollment: 3%
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
Gr: 3-5 | 174 students Student-teacher ratio: 11:1 Minority enrollment: 3%
Rank: #33.
Trojan Intermediate
(Math: 53% | Reading: 58%)
Rank:
Rank:
9/
Top 20%10
367 Intermediate Dr
Potosi, MO 63664
(573) 436-8108
Potosi, MO 63664
(573) 436-8108
Gr: 4-6 | 438 students Student-teacher ratio: 12:1 Minority enrollment: 5%
Rank: #44.
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
Gr: K-12 | 4 students Student-teacher ratio: 4:1
Rank: #55.
Caledonia Elementary School
(Math: 30-34% | Reading: 40-44%)
Rank:
Rank:
5/
Bottom 50%10
1 Viking Dr
Caledonia, MO 63631
(573) 779-3446
Caledonia, MO 63631
(573) 779-3446
Gr: PK-6 | 198 students Student-teacher ratio: 10:1 Minority enrollment: 2%
Rank: #66.
Kingston Middle School
(Math: 25-29% | Reading: 40-44%)
Rank:
Rank:
4/
Bottom 50%10
10047 Diamond Rd
Cadet, MO 63630
(573) 438-4982
Cadet, MO 63630
(573) 438-4982
Gr: 6-8 | 169 students Student-teacher ratio: 11:1 Minority enrollment: 2%
Rank: #77.
Richwoods Elementary School
(Math: 25-29% | 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
Gr: PK-8 | 137 students Student-teacher ratio: 9:1 Minority enrollment: 2%
Rank: n/an/a
10047 Diamond Rd
Cadet, MO 63630
(573) 438-4982
Cadet, MO 63630
(573) 438-4982
Gr: PK-2 | 229 students Student-teacher ratio: 11:1 Minority enrollment: 4%
Frequently Asked Questions
What are the top-ranked public elementary schools in Washington County, MO?
The top-ranked public elementary schools in Washington County, MO include Potosi Elementary School, Kingston Elementary School and Trojan Intermediate.
How many public elementary schools are located in Washington County?
8 public elementary schools are located in Washington County.
What is the racial composition of students in Washington County?
Washington County public elementary schools minority enrollment is 4% of the student body (majority Hispanic), which is less than the Missouri public elementary schools average of 33% (majority Black).
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