Masonville
- County:
- Delaware County
- County Seat:
- No
- Area (mi²):
- 0.327
- State:
- Iowa
Masonville is a city located in Delaware County, Iowa. Masonville has a 2026 population of 98. Masonville is currently declining at a rate of 0% annually and its population has decreased by -1.01% since the most recent census, which recorded a population of 99 in 2020.
The median household income in Masonville is $50,000 with a poverty rate of 8.82%. The median age in Masonville is 60.4 years: 60.2 years for males, and 64 years for females. For every 100 females there are 183.3 males.