Founded on Jan 15, 1851, Worth County is one of 99 counties in the state of Iowa. Historically, Worth County was formed from Mitchell County. The city of Northwood is the county seat. With FIPS code of 195, Worth County has a population of 7,385 and area of 400 square miles (1,036 km2).
List of all cities in Worth County, IA alphabetically
| City/Town | Postal Code | Area Code |
| Bolan, IA | 50448 | 641 |
| Fertile, IA | 50434 | 641 |
| Grafton, IA | 50440 | 641 |
| Hanlontown, IA | 50444 | 641 |
| Joice, IA | 50446 | 641 |
| Kensett, IA | 50448 | 641 |
| Manly, IA | 50456 | 641 |
| Northwood, IA | 50459 | 641 |
| Silver Lake, IA | 50459 | 641 |