tukwila population
Tukwila Wa Population 2017. Tukwila Wa's estimated population is 19,107 according to the most recent United States census. Based on data from the American Community Survey, in 2015 there were 7,741 households in the city, with an average size of 2.68 people per household. The vacancy rate was 5.6%, with a median rent of $977/month.