Iron Bridge is an unincorporated community in Ontario, Canada.
It is recognized as a designated place by Statistics Canada.
In the 2021 Census of Population conducted by Statistics Canada, Iron Bridge had a population of 592 living in 286 of its 325 total private dwellings, a change of -5.9% from its 2016 population of 629.
With a land area of 31.89 km2 (12.31 sq mi), it had a population density of 18.6/km2 (48.1/sq mi) in 2021.
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