Selmer
- County:
- McNairy County
- County Seat:
- Yes
- Area (mi²):
- 9.55
- State:
- Tennessee
Selmer is a town located in McNairy County, Tennessee. Selmer has a 2026 population of 4,590. It is also the county seat of McNairy County. Selmer is currently growing at a rate of 2.43% annually and its population has increased by 2.71% since the most recent census, which recorded a population of 4,469 in 2020.