Oregon 2020 Census Population Density By County Map

The population density of Oregon from the 2020 Census was 44.14 people per square mile, based on data from the US Census Bureau.

Multnomah County had the highest population density (1,891.25 people per square mile), followed by Washington County (828.93 people per square mile), and then Marion County (292.88 people per square mile). On the other hand, the 3 counties with the lowest population density were: Harney County (0.74 people per square mile), Wheeler County (0.85 people per square mile), and Lake County (1 people per square mile).

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.