Donnellson
- County:
- Lee County
- County Seat:
- No
- Area (mi²):
- 1.273
- State:
- Iowa
Donnellson is a city located in Lee County, Iowa. Donnellson has a 2026 population of 859. Donnellson is currently declining at a rate of -0.58% annually and its population has decreased by -3.16% since the most recent census, which recorded a population of 887 in 2020.
The median household income in Donnellson is $54,453 with a poverty rate of 14.05%. The median age in Donnellson is 36.7 years: 37.1 years for males, and 35.8 years for females. For every 100 females there are 72.8 males.