The Calgary Alberta Temple was announced yesterday in General Conference. The temple will likely serve members mainly in the six stakes in Calgary. The other stakes in Alberta are closer to the other two temples (Cardston and Edmonton) so the temple district for the new temple will likely be just for the six stakes. It is also likely that a new stake will be created in Calgary in the near future considering there are three stakes with 10 wards a piece and a branch or two. New congregations are created in Calgary regularly.
Alberta has over 73,600 members organized in 205 congregations. The last new stake created in Alberta was in Edmonton. The Calgary Alberta Temple will become the third temple in the province and the eight in Canada. Canada's membership stands around 175,000. The last new stake created in Canada was in Quebec in 2006.