According to the US Census Bureau estimates, 322,071 (4.28%) of the 7,526,793 Washington population in 2018 identified as Black or African American alone.
In the map below, we show the specific number of Blacks or African Americans per county in Washington. We also show the percentage of the population of each county that are African American and the gender percentages of the African American population when you interact with the map.
King County had the highest number of African Americans (153,905), and African Americans constituted 6.91% of the county's population. Other counties with high number of African Americans include: Pierce County (68,406) - 7.64% of the county's population, and Snohomish County (30,081) - 3.7% of the county's population.
The data can also be found in the table below. You can use the table to sort, filter, and explore the data further.