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© 2026 STATLAS. Data under CC BY 4.0 from World Bank, GeoNames, Open-Meteo & others.

Indices labeled “modeled” are computed estimates — see methodology.

CitiesSan MateoPopulation

Population in San Mateo

United States · San Mateo profile

Population

103,536

people

World rank

#5849

of 33750

Percentile

83%

higher is better

Data quality

Measured

Total resident population.

Source: GeoNames · source data.

See full ranking About this metric San Mateo profile

FAQ

Frequently asked

What is the population in San Mateo?

San Mateo has a population of 103,536 people. Total resident population.

How does San Mateo rank for population?

San Mateo ranks #5849 of 33750 cities for population (higher is better).