Population Demographics
As of 2026 the population of Renton is 109,374. The population is expected to grow to 111,813 by 2031 - a growth rate of 0.44%.
The median age of Renton residents is 39.
The diversity index of Renton is 81.0, meaning that there is a 81% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.