Which is the most populous city north of the Arctic circle?

Murmansk is a port city located in the extreme northwest part of Russia, on the Kola Bay, an inlet of the Barents Sea on the northern shore of the Kola Peninsula, close to Russia's borders with Norway and Finland. Despite its extremely-northern latitude of 68°58'N Murmansk is in many ways similar to other Russian cities of its size at far lower latitudes, with highway and railway access to the rest of Europe. This is in contrast to the isolation of other Arctic maritime cities such as Dikson in the far north of Siberia or Iqaluit on Baffin Island. Murmansk enjoys relatively warmer temperatures than other regions at similar latitudes due to the moderating effects of the Gulf Stream on the Barents Sea.

Although Murmansk's population is in decline it remains by far the largest city north of the Arctic Circle. Here are the figures:

Murmansk 307,257

Norilsk 175,365

Tromsø 72,066

Vorkuta 70,548

*The figures are for 2012 (Tromsø) and 2010 (all the rest).