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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: +79 tax returns · +401 people · $-11,878,000 AGI
| County | Returns | AGI |
|---|---|---|
| New Castle County, DE | 643 | $41,465,000 |
| Harford County, MD | 392 | $24,495,000 |
| Baltimore County, MD | 146 | $9,542,000 |
| Chester County, PA | 141 | $9,533,000 |
| Lancaster County, PA | 57 | $3,074,000 |
| Delaware County, PA | 57 | $4,221,000 |
| Philadelphia County, PA | 54 | $3,431,000 |
| Kent County, DE | 49 | $3,135,000 |
| Anne Arundel County, MD | 43 | $2,173,000 |
| Baltimore city, MD | 40 | $2,350,000 |
| County | Returns | AGI |
|---|---|---|
| New Castle County, DE | 533 | $34,563,000 |
| Harford County, MD | 364 | $22,205,000 |
| Chester County, PA | 108 | $9,802,000 |
| Baltimore County, MD | 86 | $5,303,000 |
| Lancaster County, PA | 58 | $3,770,000 |
| Baltimore city, MD | 58 | $2,879,000 |
| Sussex County, DE | 58 | $7,008,000 |
| Kent County, DE | 48 | $2,457,000 |
| Philadelphia County, PA | 43 | $3,015,000 |
| Kent County, MD | 36 | $3,407,000 |
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.