Migration to and from St. Clair County, Michigan
Where St. Clair 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
6,822
people moved in (5-yr)
Total outflow
6,026
people moved out (5-yr)
Net migration
+796
inflow minus outflow
Top 10 counties people moved IN from
| Origin | State / Region | People (5-yr) |
|---|---|---|
| Macomb County | Michigan | 2,176 |
| Saginaw County | Michigan | 602 |
| Sanilac County | Michigan | 418 |
| Oakland County | Michigan | 364 |
| Wayne County | Michigan | 236 |
| Lapeer County | Michigan | 189 |
| Genesee County | Michigan | 139 |
| Kalamazoo County | Michigan | 114 |
| Alpena County | Michigan | 102 |
| Calhoun County | Michigan | 85 |
Top 10 counties people moved OUT to
| Destination | State / Region | People (5-yr) |
|---|---|---|
| Macomb County | Michigan | 1,399 |
| Wayne County | Michigan | 428 |
| Oakland County | Michigan | 344 |
| Sanilac County | Michigan | 329 |
| Genesee County | Michigan | 162 |
| Lapeer County | Michigan | 160 |
| Washtenaw County | Michigan | 153 |
| Ottawa County | Michigan | 141 |
| Mecklenburg County | North Carolina | 136 |
| Kalamazoo County | Michigan | 128 |
Explore St. Clair County
- Business data for St. Clair CountyConstruction sector establishments, employment, payroll
- Cities in MichiganACS demographic profiles for places statewide
- ZIP code lookupSearch demographic data by ZIP code
- Opportunity IndexRank counties by business growth potential
- Federal contracts in MIGovBids: RFPs, awards, NAICS matching
- New business filings in MichiganNewFilings: 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: 26147.