By going on a trip to Greenland, you are going to discover that the country is under the immense religious domination of Christians.
If you get a little more interested in the religious practices that you will meet during your trip to Greenland, you will soon learn that Christianity by far the number one religion. See for yourselves: more than 96% of the local population is Christian. Looking at it a little closer, you will also realize that in this almost exclusive predominance, the Lutheran Church is the one which has the greatest number of followers. The Church of Greenland as it also called is moreover very closely linked to the national Church of Denmark which is Protestant. Moving from town to town during your trip, you will find places of worship in each one of them. When these towns are too small or too remote for one of these religious places to be erected, the religious services then take place in halls. In short, if you are also Lutheran you won't have any difficulty in practising your religion in the deepest part of the ice fields.
With a population made up of around 87% Inuits, it would seem logical to deduce that traditional ancestral beliefs would be more largely represented. This is not at all the case since this type of practice only concerns less than 1% of the population, that is scarcely a little more than the followers of the Baha'i religion. 2.5% of Greenlanders declare themselves to be atheists.
If you look more closely at the composition of the Christian community, you will find Catholics in Nuuk in particular, where the only Catholic Church is in the land, as well as Baptists, Adventists, Mormons, and Jehovah's Witnesses.
You won't find any trace of Muslims, Jews, Buddhists or Hindus in Greenland.
Here you are now slightly better informed to have a discussion about religion in Greenland.