You would need to live in a prescribed zone to be eligible for the Northern Residents deduction.
You can see the zones here:
http://www.cra-arc.gc.ca/tx/ndvdls/tpcs/ncm-tx/rtrn/cmpltng/ddctns/lns248-260/255/prvncs/ab-eng.html
thank you Janelle. And how many days can I qualify for if I live in 'B' zone?
It is based on how many days you permanently lived in the zone, must be a minimum of a 6 month period either beginning or ending in tax year.