Arizona 2020 Census Population Density By County Map

The population density of Arizona from the 2020 Census was 62.92 people per square mile, based on data from the US Census Bureau.

Maricopa County had the highest population density (480.4 people per square mile), followed by Pima County (113.56 people per square mile), and then Pinal County (79.25 people per square mile). On the other hand, the 3 counties with the lowest population density were: La Paz County (3.68 people per square mile), Greenlee County (5.19 people per square mile), and Apache County (5.9 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.