San Mateo Population

2011–2026

856

2026 projection

339% since 2020 (increase)

02004006008001K20122014201620182020202220242026

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for San Mateo. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026856+435.29%
2025813+875.82%
2023726+7053,357.14%
202221-17467.18%
2020195-15143.64%
2019346+51.47%
2018341-7117.23%
2017412-16628.72%
2016578+26282.91%
2015316+12666.32%

Showing 10 of 14 years.

San Mateo Demographics

25.6median age

Median age

Female25.3 yrs
Male50.6 yrs

Adults

392
10 seniors · 3%382 other adults

Sex

Female 61.3% · 369Male 38.7% · 233

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 6 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

San Mateo Income

$77,745median household income

Median household income

$77,745

Half of households earn more, half earn less

Median earnings

$2,499

Typical yearly pay for a worker 25 or older.

Poverty rate

0%

0% of residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

San Mateo Marital Status

44% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married44%58%33%
Never married38%0%67%
Divorced18%42%0%
Widowed0%0%0%
Separated0%0%0%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201