Just to clarify, there is land at the South Pole, the arctic is a polar ice cap over the Arctic Ocean.
i think that we're primarily considering the north pole. Not the south, although that is a valid point
There is not a capital of the Arctic, as it is just a frozen ice sheet on top of an ocean.
Juneau is the capital - but it is not within the Arctic Circle.
The Arctic is not a political entity; there is no capital.
The county in the arctic is Greenland. The capital of it is called Nuuk.
Iqaluit
Ottawa is the capital city of Canada, the only country that borders both the Arctic Ocean and the United States.
The state is Alaska, and its capital is Juneau.
The Arctic is a region of Earth, not a country, and therefore it has no capital (funds) and it has no capitol (city).
Ottawa is the capital city of Canada, the only country that borders both the Arctic Ocean and the United States.
south
Juneau, Alaska
The answer is Greenland, whose capital is Nuuk.
Reykjavík is the capital of Iceland, which is just barely south of the Arctic Circle.