Williamson County, IL
Migration of people and income, 2022–2023 filing years
Between the 2022 and 2023 filing years, Williamson County, IL saw a net gain of 105 tax-filing households and a net gain of 305 individuals. On net, the area lost $10.5M in associated adjusted gross income (AGI, nominal dollars). The largest inflow came from Jackson County; the largest outflow went to Jackson County. These figures cover federal income tax filers only and do not indicate why people moved.
Income (AGI) in and out
Where movers came from
- 1Jackson County, IL277$12.9M
- 2Franklin County, IL258$11.5M
- 3Saline County, IL97$5.1M
- 4Johnson County, IL72$4.2M
- 5Union County, IL40$3.1M
- 6Jefferson County, IL40$1.6M
- 7Cook County, IL28$1.2M
- 8Perry County, IL26$1.4M
Where movers went
- 1Jackson County, IL239$10.1M
- 2Franklin County, IL212$9.8M
- 3Saline County, IL74$3.4M
- 4Johnson County, IL67$4.5M
- 5St. Clair County, IL39$2.3M
- 6Jefferson County, IL31$1.6M
- 7St. Louis County, MO30$1.7M
- 8Union County, IL29$2.1M
- 9Perry County, IL28$1.6M
- 10Cook County, IL27$1.7M
Net migration by year
| Year | Net AGI | Net people |
|---|---|---|
| 2012 | -$5.1M | +85 |
| 2013 | +$7.7M | +353 |
| 2014 | +$3.5M | -30 |
| 2015 | +$473.0K | +132 |
| 2016 | -$7.7M | -73 |
| 2017 | -$13.8M | -338 |
| 2018 | -$2.6M | -48 |
| 2019 | -$8.5M | -255 |
| 2020 | +$1.7M | +191 |
| 2021 | -$2.8M | -126 |
| 2022 | -$4.9M | +110 |
| 2023 | -$10.5M | +305 |
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Source: IRS Statistics of Income migration data (public domain). Covers federal income tax filers only; AGI is nominal (not inflation adjusted). These numbers describe movement of filers and their reported income, not why people moved or economic loss. Methodology and caveats.