South Lineville
- County:
- Mercer County
- County Seat:
- No
- Area (mi²):
- 0.054
- State:
- Missouri
South Lineville is a town located in Mercer County, Missouri. South Lineville has a 2025 population of 13 . South Lineville is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 13 in 2020.
The median age in South Lineville is 48.7 years: 48.7 years for males, and 0 years for females. For every 100 females there are 133.3 males.