For the 2025 school year, there are 3 public high schools serving 535 students in Monona County, IA.
The top ranked public high schools in Monona County, IA are West Monona High School, Whiting Senior High School and Maple Valley-anthon Oto High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Monona County, IA public high schools have an average math proficiency score of 58% (versus the Iowa public high school average of 65%), and reading proficiency score of 72% (versus the 71% statewide average). High schools in Monona County have an average ranking of 4/10, which is in the bottom 50% of Iowa public high schools.
Monona County, IA public high school have a Graduation Rate of 83%, which is less than the Iowa average of 87%.
The school with highest graduation rate is West Monona High School, with 80-89% graduation rate. Read more about public school graduation rate statistics in Iowa or national school graduation rate statistics.
Minority enrollment is 16% of the student body (majority Hispanic), which is less than the Iowa public high school average of 27% (majority Hispanic).
Best Public High Schools in Monona County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
West Monona High School
(Math: 60-64% | Reading: 75-79%)
Rank:
Rank:
5/
Bottom 50%10
1314 15th St
Onawa, IA 51040
(712) 433-2453
Onawa, IA 51040
(712) 433-2453
Grades: 9-12
| 191 students
Rank: #22.
Whiting Senior High School
(Math: 60-69% | Reading: 65-69%)
Rank:
Rank:
4/
Bottom 50%10
606 West St
Whiting, IA 51063
(712) 455-2468
Whiting, IA 51063
(712) 455-2468
Grades: 7-12
| 66 students
Rank: #33.
Maple Valley-anthon Oto High School
(Math: 53% | Reading: 71%)
Rank:
Rank:
3/
Bottom 50%10
501 South 7th Street
Mapleton, IA 51034
(712) 881-1317
Mapleton, IA 51034
(712) 881-1317
Grades: 9-12
| 278 students
Monona County Public Schools (Closed)
School
Location
Grades
Students
4th & Elm St
Castana, IA 51010
(712) 353-6331
Castana, IA 51010
(712) 353-6331
Grades: 1-5
| 171 students
1100 10th
Onawa, IA 51040
(712) 433-1056
Onawa, IA 51040
(712) 433-1056
Grades: 3-5
| 157 students
Frequently Asked Questions
What are the top ranked public high schools in Monona County, IA?
The top ranked public high schools in Monona County, IA include West Monona High School, Whiting Senior High School and Maple Valley-anthon Oto High School.
How many public high schools are located in Monona County?
3 public high schools are located in Monona County.
What is the racial composition of students in Monona County?
Monona County public high schools minority enrollment is 16% of the student body (majority Hispanic), which is less than the Iowa public high schools average of 27% (majority Hispanic).
Recent Articles

Opinion: Handcuffing in Public Schools is a Gateway to More Violence
Some districts are banning handcuffing, while others are cuffing kindergarteners simply throwing a temper tantrum. Read this editorial to see why this author believes slapping the cuffs on children鈥檚 wrists only leads to more behavior issues and violence in their adult lives.

Whooping Cough: Should Vaccinations be Required for Public School Enrollment?
Whopping cough is making a comeback, especially amongst children, prompting health officials to encourage pertussis vaccines and boosters. However, should the pertussis vaccine be required for public school enrollment? Learn about current proposed laws and its ramifications.

What are Common Core Standards and Why Do We Need Them?
With schools nationwide adopting common core standards, we鈥檒l take a look at what they are, their benefits, and how they will change the face of public education.