Where Are People Moving in Marin, CA?
IRS county-to-county migration, 2023 tax year (released about two years after the tax year it covers).
People moving in
4,712
People moving out
5,393
Net migration
-1,201
Marin, CA is a net loser of residents. In the latest IRS data (2023 tax year), 4,712 people moved in and 5,393 moved out, for a net loss of -1,201. Net outflows can soften local rent and price growth over time, though the cause matters as much as the number.
Migration is most useful read alongside the rest of the market. People move for jobs, affordability, climate, and lifestyle, and where they come from and go to says a lot about what a county is competing on. Below are the specific counties driving Marin, CA’s flows in each direction.
Top counties people moved to Marin, CA from
| Origin county | Returns | People |
|---|---|---|
| San Francisco, CACalifornia | 1,364 | 2,272 |
| Sonoma, CACalifornia | 551 | 781 |
| Alameda, CACalifornia | 424 | 661 |
| Contra Costa, CACalifornia | 324 | 566 |
| Los Angeles, CACalifornia | 293 | 428 |
| San Mateo, CACalifornia | 263 | 417 |
| Santa Clara, CACalifornia | 165 | 244 |
| San Diego, CACalifornia | 129 | 190 |
| Solano, CACalifornia | 119 | 192 |
| Sacramento, CACalifornia | 86 | 115 |
Top counties people left Marin, CA for
| Destination county | Returns | People |
|---|---|---|
| Sonoma, CACalifornia | 1,105 | 1,808 |
| San Francisco, CACalifornia | 786 | 1,035 |
| Alameda, CACalifornia | 355 | 484 |
| Contra Costa, CACalifornia | 354 | 575 |
| Los Angeles, CACalifornia | 301 | 405 |
| Solano, CACalifornia | 209 | 372 |
| San Mateo, CACalifornia | 182 | 246 |
| San Diego, CACalifornia | 180 | 271 |
| New York, NYNew York | 157 | 180 |
| Santa Clara, CACalifornia | 148 | 229 |
“Returns” counts tax returns (a household proxy) that moved along each flow; “People” counts the individuals on those returns, when reported. IRS aggregate and foreign pseudo-rows are excluded. Informational only, not financial advice.
Frequently asked questions
Are people moving to Marin, CA or leaving?
Marin, CA had a net loss of -1,201 residents in the latest IRS data (2023 tax year), with 4,712 people moving in and 5,393 moving out. Net migration is inflow minus outflow.
Where are people moving to Marin, CA from?
The largest sources of new Marin, CA residents are San Francisco, CA, Sonoma, CA, Alameda, CA. The full top-ten list of origin counties is in the table above.
Where do people leaving Marin, CA go?
People leaving Marin, CA most often move to Sonoma, CA, San Francisco, CA, Alameda, CA. The full top-ten list of destination counties is in the table above.
What does Marin, CA migration mean for housing?
Migration is a leading demand signal. Sustained net inflows tend to support rents and home prices when supply cannot keep up, while net outflows can soften them. Read this alongside Marin, CA's price forecast, building permits, and affordability on the full county dashboard before drawing a conclusion.
How current is this Marin, CA migration data?
It comes from IRS Statistics of Income county-to-county migration data, which is released about two years after the tax year it covers; the figures above reflect the 2023 tax year. That lag is normal for this dataset, which counts actual tax returns rather than survey estimates.