Tundra biomes are found in a range of latitudes, primarily in the high northern latitudes and to a lesser extent in the high southern latitudes.

Here's a breakdown:

* Arctic Tundra: This type of tundra is found in the Arctic Circle, which is at approximately 66.5 degrees north latitude. It extends southward to the boreal forests.

* Alpine Tundra: This type of tundra occurs at high elevations in mountainous regions worldwide, regardless of their latitude. They are found above the treeline, which varies depending on location and elevation.

* Antarctic Tundra: This type of tundra is found on the Antarctic continent, which is located at the South Pole (90 degrees south latitude). It is characterized by extreme cold and low precipitation.

Therefore, it's difficult to give a single latitude for tundra. It's more accurate to say that tundra biomes occur within a range of latitudes, mostly concentrated in the high northern latitudes.