
Barnum
- County:
- Webster County
- County Seat:
- No
- Area (mi²):
- 0.374
- State:
- Iowa
Barnum is a city located in Webster County, Iowa. Barnum has a 2025 population of 179. Barnum is currently growing at a rate of 0.56% annually and its population has increased by 1.7% since the most recent census, which recorded a population of 176 in 2020.
The average household income in Barnum is $83,160 with a poverty rate of 11.47%. The median age in Barnum is 27.1 years: 21 years for males, and 28.7 years for females.