The population of Diadema, Brazil in September 2025. How many residents now in Diadema?

Brazil / Diadema

The estimated population of Diadema as of September 2025 is around 393,237 residents. Please note: this population number is an estimate and may slightly change as people get born and die, it also depends on migration to/from Diadema.

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Check out more data on population in Brazil:

Bragança
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Barcarena
Resende
Crato

This population of Diadema is provided by the local bureau of statistics.
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