Explore how populations have changed in King County

King County gained more than 338,000 people between 2010 and 2020, according to newly-released U.S. Census data. The growth occurred unevenly across different areas and population groups. Note: Changes to design and coding in the 2020 Census survey could have resulted in higher diversity figures, according to demographers.

Click on the map below to see how much different population groups grew or shrank in different ZIP code areas. The map shows changes within each population group, not in relation to each other.

Total Population

White

Black

Hispanic

Asian

American Indian or Alaska Native

Native Hawaiian or Pacific Islander

Population increase or decrease since 2010

-40.1% or below

-40 to -20.1%

-20 to -1.1%

-1 to 1%

1.1 - 19.9%

20 - 39.9%

40% +

Unable to calculate a percentage change

Source: U.S. Census

Lauren Flannery / The Seattle Times