Population Demographics
As of 2025 the population of Osborne County is 3,464. The population is expected to shrink to 3,265 by 2030 - a growth rate of -1.18%.
The median age of Osborne County residents is 50.
The diversity index of Osborne County is 18.8, meaning that there is a 19% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.
