Population Demographics
As of 2026 the population of Morrill County is 4,416. The population is expected to shrink to 4,331 by 2031 - a growth rate of -0.39%.
The median age of Morrill County residents is 44.
The diversity index of Morrill County is 47.9, meaning that there is a 48% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.