For the 2026-27 school year, there are 4 public high schools serving 2,016 students in Clayton County, IA.
The top-ranked public high schools in Clayton County, IA are Clayton Ridge High School, Edgewood-colesburg High School and Mfl Marmac High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Clayton County, IA public high schools have an average math proficiency score of 54% (versus the Iowa public high school average of 65%), and reading proficiency score of 69% (versus the 71% statewide average). High schools in Clayton County have an average ranking of 2/10, which is in the bottom 50% of Iowa public high schools.
Clayton County, IA public high school have a Graduation Rate of 82%, which is less than the Iowa average of 87%.
The school with highest graduation rate is Central Middle School/high School, with ≥90% graduation rate. Read more about public school graduation rate statistics in Iowa or national school graduation rate statistics.
Minority enrollment is 18% of the student body (majority Hispanic and Black), which is less than the Iowa public high school average of 28% (majority Hispanic).
Best Public High Schools in Clayton County (2026-27)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Clayton Ridge High School
(Math: 65-69% | Reading: 80-84%)
Rank:
Rank:
7/
Top 50%10
131 S River Park Dr
Guttenberg, IA 52052
(563) 252-2342
Guttenberg, IA 52052
(563) 252-2342
Gr: 9-12 | 176 students Student-teacher ratio: 10:1 Minority enrollment: 9%
Rank: #22.
Edgewood-colesburg High School
(Math: 70-74% | Reading: 65-69%)
Rank:
Rank:
5/
Bottom 50%10
403 W Union
Edgewood, IA 52042
(563) 928-6412
Edgewood, IA 52042
(563) 928-6412
Gr: 7-12 | 206 students Student-teacher ratio: 10:1 Minority enrollment: 5%
Rank: #33.
Mfl Marmac High School
(Math: 57% | Reading: 70-74%)
Rank:
Rank:
4/
Bottom 50%10
700 S Page St
Monona, IA 52159
(563) 539-2031
Monona, IA 52159
(563) 539-2031
Gr: 9-12 | 263 students Student-teacher ratio: 15:1 Minority enrollment: 5%
Rank: #44.
Central Middle School/high School
(Math: 55-59% | Reading: 65-69%)
Rank:
Rank:
3/
Bottom 50%10
400 1st Street Nw
Elkader, IA 52043
(563) 245-1750
Elkader, IA 52043
(563) 245-1750
Gr: 7-12 | 182 students Student-teacher ratio: 11:1 Minority enrollment: 6%
Clayton County Public Schools (Closed)
School
Location
Quick Facts
206 W. Centre Street Box 9
Garnavillo, IA 52049
(563) 964-2441
Garnavillo, IA 52049
(563) 964-2441
Gr: PK-5 | 83 students Minority enrollment: 2%
P.o. Box 91
Volga, IA 52077
(563) 767-2685
Volga, IA 52077
(563) 767-2685
Gr: 4-6 | 131 students Student-teacher ratio: 13:1 Minority enrollment: 3%
Frequently Asked Questions
What are the top-ranked public high schools in Clayton County, IA?
The top-ranked public high schools in Clayton County, IA include Clayton Ridge High School, Edgewood-colesburg High School and Mfl Marmac High School.
How many public high schools are located in Clayton County?
5 public high schools are located in Clayton County.
What is the racial composition of students in Clayton County?
Clayton County public high schools minority enrollment is 18% of the student body (majority Hispanic and Black), which is less than the Iowa public high schools average of 28% (majority Hispanic).
Which public high schools in Clayton County are often viewed compared to one another?
Popular comparisons of public high schools in Clayton County include: Clayton Ridge High School vs. Central Middle School/high School, Central Middle School/high School vs. Clayton Ridge High School, Edgewood-colesburg High School vs. Central Middle School/high School
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