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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.

CitiesUnion CityPopulation

Population in Union City

United States · Union City profile

Population

74,494

people

World rank

#8217

of 33750

Percentile

76%

higher is better

Data quality

Measured

Total resident population.

Source: GeoNames · source data.

See full ranking About this metric Union City profile

FAQ

Frequently asked

What is the population in Union City?

Union City has a population of 74,494 people. Total resident population.

How does Union City rank for population?

Union City ranks #8217 of 33750 cities for population (higher is better).