Sandyville
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 0.495
- State:
- Iowa
Sandyville is a city located in Warren County, Iowa. Sandyville has a 2026 population of 59. Sandyville is currently growing at a rate of 1.72% annually and its population has increased by 3.51% since the most recent census, which recorded a population of 57 in 2020.
The median age in Sandyville is 47 years: 42.5 years for males, and 51.5 years for females. For every 100 females there are 158.8 males.