San Mateo migration outflow
Migration outflow
21,581
Ranks #65 of 2,829 U.S. counties, in the top 2%.
- vs. national median366San Mateo is higher than the U.S. median
- vs. California median3,393San Mateo is higher than the California median
What migration outflow means
U.S. counties losing the most residents, measured by IRS county-to-county migration outflow (the number of people who moved away over the latest year).