Founded in 1857, Sequatchie County is one of 95 counties in the state of Tennessee. Historically, Sequatchie County was formed from Hamilton, Marion and Warren counties. The city of Dunlap is the county seat. With FIPS code of 153, Sequatchie County has a population of 16,396 and area of 266 square miles (689 km2).
List of all cities in Sequatchie County, TN alphabetically
| City/Town | Postal Code | Area Code |
| Dunlap, TN | 37327 | 423 |
| Powells Crossroads, TN | 37397 | 423 |
| Whitwell, TN | 37397 | 423 |