Place
- Iowa--Carroll County11
- Iowa--Cass County11
- Iowa--Cedar County11
- Iowa--Cedar Rapids1
- Iowa--Cerro Gordo County40
- Iowa--Cherokee County7
- Iowa--Chickasaw County11
- Iowa--Clarke County12
- Iowa--Clay County9
- Iowa--Clayton County17
- Iowa--Clinton1
- Iowa--Clinton County9
- Iowa--Council Bluffs1
- Iowa--Crawford County9
- Iowa--Dallas County9
- Iowa--Davis County10
- Iowa--Decatur County9
- Iowa--Delaware County11
- Iowa--Des Moines1
- Iowa--Des Moines County10