Population Demographics
As of 2025 the population of Tukwila is 22,720. The population is expected to grow to 23,515 by 2030 - a growth rate of 0.69%.
The median age of Tukwila residents is 38.
The diversity index of Tukwila is 85.4, meaning that there is a 85% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.