San Mateo County, CA
Migration of people and income, 2022–2023 filing years
Between the 2022 and 2023 filing years, San Mateo County, CA saw a net loss of 2,970 tax-filing households and a net loss of 6,762 individuals. On net, the area lost $965.1M in associated adjusted gross income (AGI, nominal dollars). The largest inflow came from San Francisco County; the largest outflow went to Santa Clara County. These figures cover federal income tax filers only and do not indicate why people moved.
Income (AGI) in and out
Where movers came from
- 1San Francisco County, CA4,514$798.9M
- 2Santa Clara County, CA3,879$975.6M
- 3Alameda County, CA2,026$301.6M
- 4Los Angeles County, CA977$139.4M
- 5Contra Costa County, CA839$101.0M
- 6San Diego County, CA439$50.7M
- 7Sacramento County, CA352$28.5M
- 8King County, WA329$77.0M
- 9Orange County, CA325$42.3M
- 10San Joaquin County, CA245$17.1M
Where movers went
- 1Santa Clara County, CA3,874$1.0B
- 2San Francisco County, CA3,710$609.5M
- 3Alameda County, CA2,498$361.5M
- 4Contra Costa County, CA1,313$206.4M
- 5Los Angeles County, CA900$128.3M
- 6Sacramento County, CA635$65.9M
- 7San Diego County, CA600$133.9M
- 8San Joaquin County, CA416$37.2M
- 9King County, WA397$76.9M
- 10Solano County, CA381$36.1M
Net migration by year
| Year | Net AGI | Net people |
|---|---|---|
| 2012 | +$286.2M | +670 |
| 2013 | +$280.6M | -1,211 |
| 2014 | -$30.7M | -1,996 |
| 2015 | +$159.0M | -2,129 |
| 2016 | -$82.4M | -7,099 |
| 2017 | -$613.8M | -10,671 |
| 2018 | -$476.7M | -8,218 |
| 2019 | +$666.7M | -8,836 |
| 2020 | -$1.7B | -16,343 |
| 2021 | -$3.2B | -21,085 |
| 2022 | -$2.6B | -11,615 |
| 2023 | -$965.1M | -6,762 |
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Source: IRS Statistics of Income migration data (public domain). Covers federal income tax filers only; AGI is nominal (not inflation adjusted). These numbers describe movement of filers and their reported income, not why people moved or economic loss. Methodology and caveats.