Migration to and from Winnebago County, Illinois
Where Winnebago 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
14,470
people moved in (5-yr)
Total outflow
13,685
people moved out (5-yr)
Net migration
+785
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Cook County | Illinois | 1,800 |
| Boone County | Illinois | 1,087 |
| Africa | 741 | |
| Ogle County | Illinois | 720 |
| DeKalb County | Illinois | 571 |
| Rock County | Wisconsin | 431 |
| Kane County | Illinois | 417 |
| Lake County | Illinois | 413 |
| Beloit City | Rock County, Wisconsin | 362 |
| Asia | 308 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Boone County | Illinois | 904 |
| Cook County | Illinois | 809 |
| Ogle County | Illinois | 699 |
| Rock County | Wisconsin | 630 |
| Beloit City | Rock County, Wisconsin | 312 |
| Maricopa County | Arizona | 279 |
| Janesville City | Rock County, Wisconsin | 245 |
| Milwaukee County | Wisconsin | 242 |
| Stephenson County | Illinois | 228 |
| McHenry County | Illinois | 198 |
Explore Winnebago County
- Business data for Winnebago CountyConstruction sector establishments, employment, payroll
- Cities in IllinoisACS demographic profiles for places statewide
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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: 17201.