Washington → Cook County, IL
Reported tax-filing households, individuals, and adjusted gross income that moved from Washington to Cook County, IL, 2022–2023.
Households moved
1,077
People moved
1,421
Reported AGI moved
$112.95M
Avg. AGI per migrating return
$104,878
Avg. household size
1.32
Reported county-pair flows
8
County-by-county breakdown
| Origin | Destination | Households | People | Reported AGI |
|---|---|---|---|---|
| King County, WA | Cook County, IL | 750 | 981 | $90.54M |
| Snohomish County, WA | Cook County, IL | 83 | 123 | $6.64M |
| Pierce County, WA | Cook County, IL | 87 | 132 | $5.81M |
| Kitsap County, WA | Cook County, IL | 29 | 41 | $3.29M |
| Clark County, WA | Cook County, IL | 41 | 47 | $2.53M |
| Thurston County, WA | Cook County, IL | 31 | 37 | $1.86M |
| Spokane County, WA | Cook County, IL | 32 | 34 | $1.26M |
| Whatcom County, WA | Cook County, IL | 24 | 26 | $1.03M |
IRS migration data does not represent every U.S. resident (non-filers are underrepresented), a mailing address does not always equal a physical residence, and AGI reflects Year 2 tax returns without proving income was earned after arrival. Use “income moved” or “reported AGI moved,” not “economic impact created.”