Founded on Jan 13, 1846, Lucas County is one of 99 counties in the state of Iowa. Historically, Lucas County was formed from Monroe County. The city of Chariton is the county seat. With FIPS code of 117, Lucas County has a population of 8,710 and area of 431 square miles (1,116 km2).
List of all cities in Lucas County, IA alphabetically
| City/Town | Postal Code | Area Code |
| Bethlehem, IA | 50238 | 641 |
| Chariton, IA | 50049 | 641 |
| Derby, IA | 50068 | 641 |
| Last Chance, IA | 50068 | 641 |
| Lucas, IA | 50151 | 641 |
| New York, IA | 50238 | 641 |
| Norwood, IA | 50151 | 641 |
| Oakley, IA | 50049 | 641 |
| Russell, IA | 50238 | 641 |
| Williamson, IA | 50272 | 641 |