Population of Merrillville, Indiana as of February 2026. How many people live in Merrillville today?

The exact population of Merrillville, Indiana as of February 2026 is estimated at 36,444 residents. Please note: this figure is an estimate and may slightly change as people get born and pass away, it also depends on migration to/from Merrillville.

Check out more data on population in Indiana:

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