There is no specific count. There is no permanent population or sovereignty in Antarctica.
All temporary workers including scientists may worship at a research station's interfaith chapel, if one is located there, regardless of the religion they follow.
People who live and work temporarily in Antarctica are not necessarily known by their organized religions' beliefs, rather by their commitment and dedication to science.
Antarctica, because it has no permanent human residents. All the other continents have many Christians, but not every country in all the other continents does.
There are no nations in Antarctica.
There are no settlements in Antarctica.
There are no territories in Antarctica.
There are no countries in Antarctica.
Only one: Antarctica.
There are zero nations in Antarctica.
There are 1,534 mountains in antarctica.
Yes there are many Ice bergs in Antarctica.
There is no commercial fishing in Antarctica.
Antarctica is a continent the size of USA and Mexico combined. It contains many, many areas.