Allenville
- County:
- Cape Girardeau County
- County Seat:
- No
- Area (mi²):
- 0.155
- State:
- Missouri
Allenville is a village located in Cape Girardeau County, Missouri. Allenville has a 2026 population of 95. Allenville is currently declining at a rate of 0% annually and its population has increased by 1.06% since the most recent census, which recorded a population of 94 in 2020.
The median household income in Allenville is $51,071 with a poverty rate of 25.6%. The median age in Allenville is 42.2 years: 42.5 years for males, and 42.2 years for females. For every 100 females there are 86.8 males.