Population of Sarnia, Canada as of January 2026. How many people live in Sarnia today?

Canada / Sarnia

The exact population of Sarnia as of January 2026 is estimated at 72,047 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 Sarnia.

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Check out more data on population in Canada:

Matane
Sainte-Adèle
Rosemère
Lachute
Mont-Laurier
Lavaltrie
Mercier

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