Migration to and from Marion County, Illinois

Where Marion 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
1,604
people moved in (5-yr)
Total outflow
2,111
people moved out (5-yr)
Net migration
-507
inflow minus outflow

Top 10 counties people moved IN from

OriginState / RegionPeople (5-yr)
Jefferson CountyIllinois241
Clinton CountyIllinois222
St. Clair CountyIllinois190
Bond CountyIllinois91
Fayette CountyIllinois81
Pinal CountyArizona58
Franklin CountyIllinois57
Washington CountyIllinois49
St. Charles ParishLouisiana46
Madison CountyIllinois41

Top 10 counties people moved OUT to

DestinationState / RegionPeople (5-yr)
Clinton CountyIllinois271
Vanderburgh CountyIndiana218
Williamson CountyIllinois145
Washington CountyIllinois112
Champaign CountyIllinois100
Perry CountyIllinois75
St. Clair CountyIllinois73
Fayette CountyIllinois71
Jefferson CountyIllinois69
Jackson CountyIllinois61

Explore Marion County

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: 17121.