Population Demographics
As of 2026 the population of Osborne County is 3,396. The population is expected to shrink to 3,308 by 2031 - a growth rate of -0.52%.
The median age of Osborne County residents is 49.
The diversity index of Osborne County is 20.3, meaning that there is a 20% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.
