Best Cass County Public High Schools (2025-26)

For the 2025-26 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 score of 56% (versus the Iowa public high school average of 65%), and 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 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 (2025-26)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Griswold Middle/high School

(Math: 70-74% | Reading: 80-84%)
:

Top 50%

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20 Madison St.
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%)
:

Bottom 50%

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1201 E 14th St
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%)
:

Bottom 50%

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807 Third St
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%)
:

Bottom 50%

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1000 Victory Park Rd
Anita, IA 50020
(712) 762-3231

Gr: 7-12 | 207 students Student-teacher ratio: 12:1 Minority enrollment: 7%

[+] Show Closed Public Schools in Cass County, IA

Cass County Public Schools (Closed)

School

Location

Quick Facts

Cam Middle School (Closed 2023)

207 E. 6th Street
Massena, IA 50853
(712) 779-2212

Gr: 6-8 | 105 students Student-teacher ratio: 13:1 Minority enrollment: 8%

Cam North Elementary School (Closed 2023)

709 Mcintyre Dr
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

Gr: 6-12

Lewis Elementary School (Closed 2020)

201 1st Street
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

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).