Small Area Estimates Program (SAEP) estimates are meant to provide a consistent set of small area population and housing data for statewide applications. SAEP estimates are generated for census areas and other areas of statewide significance.

Population density is the average number of people per unit of land area. In the U.S., the most common unit of population density is persons per square mile. The land area measurement excludes lakes and other water areas within.

Population change

In accordance with RCW 43.62.035, the Office of Financial Management shall determine the percentage increase in population for each county over the preceding ten-year period, as of April 1.

Click on a tab below to access geographic data. Some of the data files are large and may require additional time to download.

All race/ethnic groups that meet the minimum population threshold of 100 persons are included in each demographic profile.

An asterisk (*) denotes that the area does not meet the minimum population threshold of 100 persons for any single race/ethnic group.