Spanaway, Washington, has undergone significant demographic changes from 2013 to 2022, transforming from a predominantly White community to a "Transitional Community" with "Moderate Diversity." As of 2022, no single racial group comprises over 50% of the population, with White residents at 50%, Hispanic at 17%, Two or More Races at 11%, and Black at 10%. Economically, Spanaway has experienced growth, with median income increasing from $63,726 in 2015 to $79,340 in 2022, indicating rising prosperity alongside growing diversity.

From 2013 to 2022, Spanaway's demographic composition shifted notably. The White population decreased from 62% to 50%, while the Hispanic population increased from 12% to 17%, and the Two or More Races category grew from 6% to 11%. Asian and Pacific Islander populations also showed modest growth. These changes have moved the community from "Low Diversity" to "Moderate Diversity," approaching "High Diversity."

Concurrent with demographic shifts, Spanaway experienced substantial economic growth. Median income rose by approximately 24% from 2015 to 2022, outpacing inflation and suggesting real economic gains. The population grew by about 16% in this period, from 28,757 to 33,438, indicating the area's increasing attractiveness to new residents. The correlation between increasing diversity and rising incomes suggests that the influx of new residents from various backgrounds may be contributing to economic growth.