There are 6 zip codes in Chickasaw County, Iowa. The most populated is 50659, located in New Hampton. * 2024 populations estimated based on the latest ACS 5-year data.
Zip Code | City | Population |
---|---|---|
50659 | New Hampton | 5,986 |
50658 | Nashua | 2,427 |
50630 | Fredericksburg | 1,568 |
50645 | Ionia | 1,391 |
52154 | Lawler | 664 |
50603 | Alta Vista | 342 |