
Gilman
- County:
- Marshall County
- County Seat:
- No
- Area (mi²):
- 0.536
- State:
- Iowa
Gilman is a city located in Marshall County, Iowa. Gilman has a 2025 population of 524. Gilman is currently declining at a rate of -0.76% annually and its population has decreased by -3.68% since the most recent census, which recorded a population of 544 in 2020.
The average household income in Gilman is $89,585 with a poverty rate of 10.8%. The median age in Gilman is 41.7 years: 40.9 years for males, and 42.4 years for females.