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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.

CitiesBelfastPopulation

Population in Belfast

United Kingdom · Belfast profile

Population

348,005

people

World rank

#1677

of 33750

Percentile

95%

higher is better

Data quality

Measured

Total resident population.

Source: GeoNames · source data.

See full ranking About this metric Belfast profile

FAQ

Frequently asked

What is the population in Belfast?

Belfast has a population of 348,005 people. Total resident population.

How does Belfast rank for population?

Belfast ranks #1677 of 33750 cities for population (higher is better).