McLain
- County:
- George County
- County Seat:
- No
- Area (mi²):
- 3.391
- State:
- Mississippi
McLain is a town located in George County, Mississippi. McLain has a 2026 population of 315. McLain is currently growing at a rate of 0.32% annually and its population has increased by 0.64% since the most recent census, which recorded a population of 313 in 2020.