Founded in 1842, Crittenden County is one of 120 counties in the state of Kentucky. Historically, Crittenden County was formed from Livingston County. The city of Marion is the county seat. With FIPS code of 55, Crittenden County has a population of 8,947 and area of 362 square miles (938 km2).
List of all cities in Crittenden County, KY alphabetically
| City/Town | Postal Code | Area Code |
| Crayne, KY | 42033 | 270 |
| Dycusburg, KY | 42037 | 270 |
| Frances, KY | 42064 | 270 |
| Levias, KY | 42064 | 270 |
| Marion, KY | 42064 | 270 |
| Mattoon, KY | 42064 | 270 |
| Mexico, KY | 42064 | 270 |
| New Salem, KY | 42064 | 270 |
| Repton, KY | 42064 | 270 |
| Sheridan, KY | 42064 | 270 |
| Tolu, KY | 42084 | 270 |
| Tribune, KY | 42064 | 270 |
| Winslow Park, KY | 42064 | 270 |