Population Demographics
As of 2025 the population of Cheyenne County is 2,611. The population is expected to shrink to 2,596 by 2030 - a growth rate of -0.12%.
The median age of Cheyenne County residents is 47.
The diversity index of Cheyenne County is 38.7, meaning that there is a 39% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.
