Migration to and from Johnson County, Iowa
Where Johnson County residents came from and where they went over the 5-year window 2016-2020. Census ACS County-to-County Migration Flows, 2020 5-yr (frozen vintage).
Total inflow
18,623
people moved in (5-yr)
Total outflow
14,431
people moved out (5-yr)
Net migration
+4,192
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Linn County | Iowa | 1,551 |
| Africa | 922 | |
| Polk County | Iowa | 859 |
| Asia | 613 | |
| Cook County | Illinois | 585 |
| Dubuque County | Iowa | 563 |
| Black Hawk County | Iowa | 504 |
| St. Louis County | Minnesota | 433 |
| Virginia City | St. Louis County, Minnesota | 427 |
| Cedar County | Iowa | 387 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Linn County | Iowa | 1,522 |
| Polk County | Iowa | 536 |
| Cook County | Illinois | 390 |
| Story County | Iowa | 377 |
| Washington County | Iowa | 302 |
| Wapello County | Iowa | 288 |
| Hennepin County | Minnesota | 272 |
| Erie County | New York | 255 |
| Lackawanna City | Erie County, New York | 239 |
| Dallas County | Iowa | 237 |
Explore Johnson County
- Business data for Johnson CountyConstruction sector establishments, employment, payroll
- Cities in IowaACS demographic profiles for places statewide
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- Federal contracts in IAGovBids: RFPs, awards, NAICS matching
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Methodology
- Counts represent the number of people aged 1+ who reported a different residence at the survey reference date than they did one year earlier, aggregated across the 5-year sample window 2016-2020.
- Outbound (OUT) flows are reported less frequently than inbound (IN) because the survey captures the destination side of each move. Many county pairs have null OUT counts, which is normal.
- "Total inflow" sums the published MOVEDIN counts across all origin counties, including foreign-region inflows (Africa, Asia, Central America, etc.). It is not the same as net population change.
- Frozen vintage. The Census Bureau has not released a newer county-to-county migration flows file. The 2020 5-yr vintage (covering 2016-2020) is the latest available as of build date.
Source: U.S. Census Bureau, American Community Survey, County-to-County Migration Flows: 2016-2020. Vintage: 2020 5-yr. Generated: 2026-05-28. FIPS: 19103.