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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.

CitiesSmithtownPopulation

Population in Smithtown

United States · Smithtown profile

Population

26,470

people

World rank

#21432

of 33750

Percentile

36%

higher is better

Data quality

Measured

Total resident population.

Source: GeoNames · source data.

See full ranking About this metric Smithtown profile

FAQ

Frequently asked

What is the population in Smithtown?

Smithtown has a population of 26,470 people. Total resident population.

How does Smithtown rank for population?

Smithtown ranks #21432 of 33750 cities for population (higher is better).