Mill Spring
- County:
- Wayne County
- County Seat:
- No
- Area (mi²):
- 0.44
- State:
- Missouri
Mill Spring is a village located in Wayne County, Missouri. Mill Spring has a 2026 population of 158. Mill Spring is currently declining at a rate of 0% annually and its population has decreased by -0.63% since the most recent census, which recorded a population of 159 in 2020.
The median household income in Mill Spring is $24,250 with a poverty rate of 44.37%. The median age in Mill Spring is 48.5 years: 50.3 years for males, and 47.3 years for females. For every 100 females there are 90.8 males.