An isolated population exists on Hokkaidō, Japan, in the Kushiro Shitsugen National Park.

A breeding ground of Siberian salamanders in Paegam, South Hamgyong, is designated North Korean natural monument #360.

The Siberian salamander is fairly nocturnal, foraging above ground at night and staying under moist logs or woody debris during the day.

They can be found near ephemeral or permanent pools, wetlands, sedge meadows, off near oxbow lakes.

The light-brown eggs hatch three to four weeks after being laid, releasing larval salamanders of 11–12 mm in length.