
Swan
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 0.617
- State:
- Iowa
Swan is a city located in Marion County, Iowa. Swan has a 2025 population of 77. Swan is currently declining at a rate of 0% annually and its population has increased by 1.32% since the most recent census, which recorded a population of 76 in 2020.
The average household income in Swan is $71,700 with a poverty rate of 10.34%. The median age in Swan is 55.5 years: 56.4 years for males, and 46.5 years for females.