According to the Canada 2021 Census, the population of Galetta's Dissemination Area was 556,[2] which also includes nearby communities Vydon Acres, Marshall Bay and part of Mohr Corners.

By 1866, Hubbell's Falls was a village with a population of about 200 in the township of Fitzroy, on the Mississippi river.

[3] It was renamed Steen's Falls after James Steen who built a mill here, and finally Galetta in 1873 after James Galetti Whyte who also built mills on the river here.

A small hydroelectric plant on the Mississippi River is in Galetta, operational since 1907, now the property of TransAlta.

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