Founded in 1823, McNairy County is one of 95 counties in the state of Tennessee. Historically, McNairy County was formed from Hardin County. The city of Selmer is the county seat. With FIPS code of 109, McNairy County has a population of 25,860 and area of 560 square miles (1,450 km2).
List of all cities in McNairy County, TN alphabetically
| City/Town | Postal Code | Area Code |
| Adamsville, TN | 38310 | 731 |
| Bethel Springs, TN | 38315 | 731 |
| Chewalla, TN | 38393 | 731 |
| Finger, TN | 38334 | 731 |
| Guys, TN | 38339 | 731 |
| Lawton, TN | 38375 | 731 |
| Michie, TN | 38357 | 731 |
| Milledgeville, TN | 38359 | 731 |
| Ramer, TN | 38367 | 731 |
| Selmer, TN | 38375 | 731 |
| Stantonville, TN | 38379 | 731 |