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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.

CitiesSlidellPopulation

Population in Slidell

United States · Slidell profile

Population

27,942

people

World rank

#20488

of 33750

Percentile

39%

higher is better

Data quality

Measured

Total resident population.

Source: GeoNames · source data.

See full ranking About this metric Slidell profile

FAQ

Frequently asked

What is the population in Slidell?

Slidell has a population of 27,942 people. Total resident population.

How does Slidell rank for population?

Slidell ranks #20488 of 33750 cities for population (higher is better).