Population Demographics
As of 2025 the population of Wadena is 4,357. The population is expected to grow to 4,371 by 2030 - a growth rate of 0.06%.
The median age of Wadena residents is 41.
The diversity index of Wadena is 24.6, meaning that there is a 25% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.