Iowa Net Migration By County in 2021

Updated on July 29, 2024.

According to the US Census Bureau estimates, in 2021, the net migration for Iowa was 5,506. Dallas County had the highest net migration (2,990) followed by Polk County (2,598), and Johnson County (1,137). On the other hand, Linn County had the lowest net migration (-1,368), followed by Black Hawk County (-629), and Dubuque County (-533).

Net migration for a county refers to the difference between the number of migrants, both domestic and international, moving to the county and those leaving the county. Or to put it simply, the net migration for a given county is the inbound migration minus the outbound migration for that county.

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.

See this for other years:
Iowa Net Migration By County in 2021
Iowa Net Migration By County in 2021
County
Net Migration
Dallas 2,990
Polk 2,598
Johnson 1,137
Warren 865
Story 779
Webster 299
Jones 230
Benton 205
Harrison 202
Dickinson 166
Bremer 153
Clinton 149
Madison 145
Boone 139
Clay 136
Jefferson 128
Shelby 106
Lucas 105
Jasper 103
Page 95
Delaware 81
Butler 80
Adair 75
Mills 75
Decatur 71
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