Migration to and from Union County, South Dakota
Where Union 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
1,629
people moved in (5-yr)
Total outflow
1,268
people moved out (5-yr)
Net migration
+361
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Woodbury County | Iowa | 230 |
| Lincoln County | South Dakota | 154 |
| Northern America | 123 | |
| Clay County | South Dakota | 118 |
| Minnehaha County | South Dakota | 98 |
| Hall County | Nebraska | 92 |
| Turner County | South Dakota | 92 |
| Eau Claire County | Wisconsin | 83 |
| Lincoln Town | Eau Claire County, Wisconsin | 83 |
| Aurora County | South Dakota | 72 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Woodbury County | Iowa | 262 |
| Cumberland County | Pennsylvania | 103 |
| Upper Allen Township | Cumberland County, Pennsylvania | 103 |
| Minnehaha County | South Dakota | 71 |
| Lincoln County | South Dakota | 69 |
| Clay County | South Dakota | 57 |
| Plymouth County | Iowa | 52 |
| Platte County | Missouri | 46 |
| Cuming County | Nebraska | 43 |
| Jasper County | Iowa | 42 |
Explore Union County
- Business data for Union CountyConstruction sector establishments, employment, payroll
- Cities in South DakotaACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in SDGovBids: RFPs, awards, NAICS matching
- New business filings in South DakotaNewFilings: fresh SOS registrations
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: 46127.