Population Demographics
As of 2026 the population of Kimball County is 3,306. The population is expected to shrink to 3,218 by 2031 - a growth rate of -0.54%.
The median age of Kimball County residents is 51.
The diversity index of Kimball County is 37.7, meaning that there is a 38% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.