Calumet Flag

Calumet

County:
O'Brien County
County Seat:
No
Area (mi²):
0.266
State:
Iowa

Calumet is a city located in O'Brien County, Iowa. Calumet has a 2026 population of 144. Calumet is currently growing at a rate of 0.7% annually but its population has decreased by -1.37% since the most recent census, which recorded a population of 146 in 2020.

144
Total Population
541
Density (mi²)
1 0.7%
Growth