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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: -405 tax returns · -723 people · +$45,498,000 AGI
| County | Returns | AGI |
|---|---|---|
| Pitkin County, CO | 151 | $24,919,000 |
| Garfield County, CO | 141 | $9,836,000 |
| Denver County, CO | 140 | $45,289,000 |
| Jefferson County, CO | 63 | $7,980,000 |
| Arapahoe County, CO | 50 | $7,725,000 |
| Maricopa County, AZ | 37 | $3,896,000 |
| Boulder County, CO | 33 | $3,890,000 |
| Summit County, CO | 31 | $3,855,000 |
| El Paso County, CO | 30 | $2,474,000 |
| Douglas County, CO | 30 | $3,040,000 |
| County | Returns | AGI |
|---|---|---|
| Garfield County, CO | 293 | $28,008,000 |
| Denver County, CO | 140 | $9,593,000 |
| Pitkin County, CO | 110 | $9,653,000 |
| Mesa County, CO | 67 | $5,830,000 |
| Jefferson County, CO | 67 | $4,633,000 |
| Arapahoe County, CO | 55 | $14,931,000 |
| Boulder County, CO | 51 | $4,638,000 |
| Maricopa County, AZ | 47 | $10,610,000 |
| Adams County, CO | 43 | $2,263,000 |
| Summit County, CO | 42 | $2,925,000 |
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.