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County-to-county migration · IRS SOI · filing years 2022-2023
Net migration: +231 tax returns · +400 people · +$45,476,000 AGI
| County | Returns | AGI |
|---|---|---|
| Jefferson County, CO | 80 | $15,685,000 |
| Denver County, CO | 72 | $8,591,000 |
| El Paso County, CO | 64 | $7,160,000 |
| Fremont County, CO | 40 | $1,562,000 |
| Boulder County, CO | 35 | $3,660,000 |
| Summit County, CO | 34 | $3,337,000 |
| Lake County, CO | 25 | $1,473,000 |
| Arapahoe County, CO | 25 | $2,289,000 |
| Park County, CO | 20 | $2,157,000 |
| County | Returns | AGI |
|---|---|---|
| El Paso County, CO | 56 | $2,955,000 |
| Fremont County, CO | 49 | $2,657,000 |
| Denver County, CO | 45 | $3,599,000 |
| Jefferson County, CO | 29 | $1,404,000 |
| Adams County, CO | 21 | $1,443,000 |
| Pueblo County, CO | 20 | $1,143,000 |
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.