Washington 2020 Census Population Density By County Map

The population density of Washington from the 2020 Census was 115.95, based on data from the US Census Bureau.

King County had the highest population density (1,073.02), followed by Clark County (800.82), and then Kitsap County (697.57). On the other hand, the 3 counties with the lowest population density were: Garfield County (3.22), Ferry County (3.26), and Columbia County (4.55).

You can also see this information for other states and also for the US by state.

Hover over or click on the counties to see the population density for each county. The data can also be found in a table below. You can use the table to sort, filter, and explore the data further.