Foster
- County:
- Bates County
- County Seat:
- No
- Area (mi²):
- 0.475
- State:
- Missouri
Foster is a village located in Bates County, Missouri. Foster has a 2026 population of 78. Foster is currently growing at a rate of 1.3% annually and its population has increased by 2.63% since the most recent census, which recorded a population of 76 in 2020.
The median age in Foster is 58.8 years: 59.5 years for males, and 56 years for females. For every 100 females there are 150.0 males.