Founded on Jan 15, 1851, Greene County is one of 99 counties in the state of Iowa. Historically, Greene County was formed from Dallas County. The city of Jefferson is the county seat. With FIPS code of 73, Greene County has a population of 8,717 and area of 568 square miles (1,471 km2).
List of all cities in Greene County, IA alphabetically
| City/Town | Postal Code | Area Code |
| Churdan, IA | 50050 | 515 |
| Cooper, IA | 50059 | 515 |
| Dana, IA | 50064 | 515 |
| Grand Junction, IA | 50107 | 515 |
| Jefferson, IA | 50129 | 515 |
| Paton, IA | 50217 | 515 |
| Rippey, IA | 50235 | 515 |
| Scranton, IA | 51462 | 712 |