Oa-bcig Middle School
Oak Park
Oak Ridge School
Oak Street Middle School
Odebolt-arthur Elementary School
Oelwein High School
Oelwein Middle School
Ogden High School
Ogden Middle School
Okoboji Elementary School
Okoboji High School
Okoboji Middle School
Olin Elementary School
Olin Junior-senior High School
Olmsted Elementary School
Orange City Christian School
Orange City Elementary School
Orange Elementary School
Orchard Hill Elementary School
Orchard Place School