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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: +931 tax returns · +2,433 people · +$70,765,000 AGI
| County | Returns | AGI |
|---|---|---|
| Lancaster County, PA | 1,118 | $64,559,000 |
| Cumberland County, PA | 865 | $57,935,000 |
| Adams County, PA | 837 | $44,792,000 |
| Baltimore County, MD | 698 | $54,936,000 |
| Dauphin County, PA | 631 | $34,967,000 |
| Carroll County, MD | 313 | $22,041,000 |
| Harford County, MD | 273 | $18,885,000 |
| Baltimore city, MD | 191 | $12,031,000 |
| Philadelphia County, PA | 148 | $7,925,000 |
| Anne Arundel County, MD | 145 | $11,613,000 |
| County | Returns | AGI |
|---|---|---|
| Cumberland County, PA | 918 | $58,305,000 |
| Lancaster County, PA | 891 | $47,896,000 |
| Adams County, PA | 823 | $45,103,000 |
| Dauphin County, PA | 496 | $24,987,000 |
| Baltimore County, MD | 330 | $20,763,000 |
| Philadelphia County, PA | 179 | $11,115,000 |
| Harford County, MD | 173 | $11,070,000 |
| Carroll County, MD | 156 | $9,176,000 |
| Baltimore city, MD | 131 | $6,093,000 |
| Allegheny County, PA | 113 | $6,363,000 |
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.