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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.

CitiesWesterloPopulation

Population in Westerlo

Belgium · Westerlo profile

Population

22,579

people

World rank

#24660

of 33750

Percentile

27%

higher is better

Data quality

Measured

Total resident population.

Source: GeoNames · source data.

See full ranking About this metric Westerlo profile

FAQ

Frequently asked

What is the population in Westerlo?

Westerlo has a population of 22,579 people. Total resident population.

How does Westerlo rank for population?

Westerlo ranks #24660 of 33750 cities for population (higher is better).