Iowa Net International Migration By County in 2021

According to the US Census Bureau estimates, in 2021, the net international migration for Iowa was 3,701. Polk County had the highest net international migration (814) followed by Johnson County (551), and Linn County (355). On the other hand, Franklin County had the lowest net international migration (-1), followed by Floyd County (-1), and Chickasaw County (-1).

Net International migration for a given county refers to the difference between the number of people moving to the county from other parts of the world outside the borders of the United States (50 states and District of Columbia) and the number of people moving out of the county to other parts of the world outside the borders of the United States.

You can also see similar information for other states and also by state for the United States.

Hover over or click on the chart to see this information for each county. The data can also be filtered, sorted, and explored further in a table below.