Who's moving to and from San Mateo County, California?

More left than arrived in 2022–23: 31,710 people in, 37,953 out. Most were moving between California counties.

See where they went ↓
Net change
−6,243 people
−2,667 households
Arrivals' income
$166.4k
avg income reported on the second-year tax return
Leavers' income
$185.1k
avg income reported on the second-year tax return

Where people leaving San Mateo County went in California

Orange lines show departures · thicker line = more people

Moves to and from other California counties, 2022–23. Out-of-state moves, like King County, WA, are listed below.

Where did newcomers come from?

About 7 in 10 already lived in California. People, 2022–23.

  1. San Francisco County7,071
  2. Santa Clara County5,845
  3. Alameda County3,205
  4. Los Angeles County1,347
  5. Contra Costa County1,317
  6. San Diego County608
  7. Sacramento County550
  8. Smaller moves from many other places (each under 20 households)3,119

Where did people go?

About 7 in 10 who left stayed in California. People, 2022–23.

  1. Santa Clara County5,963
  2. San Francisco County5,242
  3. Alameda County4,032
  4. Contra Costa County2,428
  5. Los Angeles County1,260
  6. Sacramento County1,104
  7. San Diego County936
  8. Smaller moves to many other places (each under 20 households)3,946

Not counted above

Arrived from abroad
406 people
Left for abroad
925 people

Moves abroad are never included in net change.

Is San Mateo usually growing from moves?

No. More households have left than arrived every year since 2014–15.

Net migration · households (tax returns)
13–1414–1515–1616–1717–1818–1919–2020–2121–22−2,66722–23††‡†
Net migration of San Mateo County (Net migration · households (tax returns))
YearValue
2013–14+94
2014–15 †−499
2015–16−1,962
2016–17 †−3,404
2017–18−2,661
2018–19 ‡−2,974
2019–20−6,723
2020–21−10,306
2021–22−4,742
2022–23 †−2,667

The IRS changed its processing in 2014–15, 2016–17 and 2022–23. Compare years between the dotted lines. ‡ County disclosure-method change in 2018–19: small counts began being deleted rather than reassigned to similar categories. County figures across this break may not be comparable.

Cite this page

Moved Where. “Who's moving to and from San Mateo County, California?” movedwhere.com/county/san-mateo-county-ca. Data: IRS Statistics of Income migration data, 2022–23.