For the 2025 school year, there are 4 public high schools serving 1,687 students in Cass County, IA.
The top ranked public high schools in Cass County, IA are Griswold Middle/high School, Atlantic High School and Iowa Connections Academy High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Cass County, IA public high schools have an average math proficiency score of 56% (versus the Iowa public high school average of 65%), and reading proficiency score of 74% (versus the 71% statewide average). High schools in Cass County have an average ranking of 4/10, which is in the bottom 50% of Iowa public high schools.
Cass County, IA public high school have a Graduation Rate of 84%, which is less than the Iowa average of 87%.
The school with highest graduation rate is Atlantic High School, with 90-94% 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 Cass County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Griswold Middle/high School
(Math: 70-74% | Reading: 80-84%)
Rank:
Rank:
7/
Top 50%10
20 Madison St.
Griswold, IA 51535
(712) 778-2154
Griswold, IA 51535
(712) 778-2154
Gr: 6-12 | 197 students Student-teacher ratio: 12:1 Minority enrollment: 7%
Rank: #22.
Atlantic High School
(Math: 63% | Reading: 72%)
Rank:
Rank:
4/
Bottom 50%10
1201 E 14th St
Atlantic, IA 50022
(712) 243-5358
Atlantic, IA 50022
(712) 243-5358
Gr: 9-12 | 475 students Student-teacher ratio: 14:1 Minority enrollment: 12%
Rank: #33.
Iowa Connections Academy High School
(Math: 46% | Reading: 76%)
Rank:
Rank:
4/
Bottom 50%10
807 Third St
Anita, IA 50020
(712) 581-0200
Anita, IA 50020
(712) 581-0200
Gr: 9-12 | 808 students Minority enrollment: 22%
Rank: #44.
Cam Jr./sr. High School
(Math: 55-59% | Reading: 60-64%)
Rank:
Rank:
3/
Bottom 50%10
1000 Victory Park Rd
Anita, IA 50020
(712) 762-3231
Anita, IA 50020
(712) 762-3231
Gr: 7-12 | 207 students Student-teacher ratio: 12:1 Minority enrollment: 7%
Cass County Public Schools (Closed)
School
Location
Quick Facts
207 E. 6th Street
Massena, IA 50853
(712) 779-2212
Massena, IA 50853
(712) 779-2212
Gr: 6-8 | 105 students Student-teacher ratio: 13:1 Minority enrollment: 8%
709 Mcintyre Dr
Anita, IA 50020
(712) 762-3231
Anita, IA 50020
(712) 762-3231
Gr: PK-5 | 97 students Student-teacher ratio: 10:1 Minority enrollment: 6%
Educational Opportunity Center (Closed 2011)
Alternative School
704 Maple St
Atlantic, IA 50022
(712) 243-3535
Atlantic, IA 50022
(712) 243-3535
Gr: 6-12
201 1st Street
Lewis, IA 51544
(712) 769-2221
Lewis, IA 51544
(712) 769-2221
Gr: PK-5 | 131 students Student-teacher ratio: 10:1 Minority enrollment: 5%
Link Center (Closed 2011)
Special Education School
1501 East 10th St
Atlantic, IA 50022
(712) 243-3250
Atlantic, IA 50022
(712) 243-3250
Gr: K-12
Frequently Asked Questions
What are the top ranked public high schools in Cass County, IA?
The top ranked public high schools in Cass County, IA include Griswold Middle/high School, Atlantic High School and Iowa Connections Academy High School.
How many public high schools are located in Cass County?
4 public high schools are located in Cass County.
What is the racial composition of students in Cass County?
Cass 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
Why Single-Sex Public Schools are Growing in Popularity
This article examines the growing trend of single-sex public schools in the United States. It explores the potential benefits, research findings, and controversies surrounding gender-specific education, as well as the factors driving its increasing popularity among parents and educators.
When Teachers Cheat: The Standardized Test Controversies
Teachers across the country are being accused of cheating on standardized tests, using erasers to conveniently change their students’ answers. However, are these teachers driven to cheat because the funding system is flawed?
When Field Trips Turn Deadly: Who is Responsible?
Recent deaths during field trips have parents and school officials questioning the safety of these excursions. Learn about these tragedies and what parameters should be in place to ensure a safe field trip.