Population Demographics
As of 2026 the population of Opp is 6,576. The population is expected to shrink to 6,523 by 2031 - a growth rate of -0.16%.
The median age of Opp residents is 44.
The diversity index of Opp is 42.2, meaning that there is a 42% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.