Population Demographics
As of 2025 the population of Kimball County is 3,359. The population is expected to shrink to 3,123 by 2030 - a growth rate of -1.45%.
The median age of Kimball County residents is 50.
The diversity index of Kimball County is 34.4, meaning that there is a 34% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.