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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -3,128 tax returns · -3,146 people · $-157,790,000 AGI
| County | Returns | AGI |
|---|---|---|
| Cook County, IL | 6,447 | $1,227,079,000 |
| McHenry County, IL | 944 | $85,446,000 |
| DuPage County, IL | 523 | $48,708,000 |
| Kenosha County, WI | 496 | $32,150,000 |
| Kane County, IL | 233 | $17,923,000 |
| Milwaukee County, WI | 180 | $15,486,000 |
| San Diego County, CA | 157 | $11,994,000 |
| Los Angeles County, CA | 151 | $13,178,000 |
| Will County, IL | 148 | $15,577,000 |
| Maricopa County, AZ | 143 | $13,643,000 |
| County | Returns | AGI |
|---|---|---|
| Cook County, IL | 4,959 | $620,831,000 |
| McHenry County, IL | 1,276 | $106,810,000 |
| Kenosha County, WI | 984 | $59,728,000 |
| DuPage County, IL | 397 | $42,241,000 |
| Milwaukee County, WI | 319 | $16,393,000 |
| Maricopa County, AZ | 313 | $47,478,000 |
| Kane County, IL | 270 | $26,621,000 |
| Racine County, WI | 215 | $23,460,000 |
| San Diego County, CA | 201 | $13,896,000 |
| Los Angeles County, CA | 183 | $13,487,000 |
IRS migration data tracks where tax filers lived in consecutive years. A "return" is roughly a household; "AGI" is the adjusted gross income that moved with them. Net migration = inflow − outflow. Small county-pair flows are suppressed by the IRS for privacy and shown blank.
Source: IRS SOI Migration Data. License: CC0 1.0.