
Sheldon
- County:
- O'Brien County
- County Seat:
- No
- Area (mi²):
- 4.803
- State:
- Iowa
Sheldon is a city located in O'Brien County, Iowa. Sheldon has a 2025 population of 5,370. Sheldon is currently declining at a rate of -0.48% annually and its population has decreased by -2.36% since the most recent census, which recorded a population of 5,500 in 2020.
The average household income in Sheldon is $77,732 with a poverty rate of 16.3%. The median age in Sheldon is 35.8 years: 35.3 years for males, and 38 years for females.