Hmm... I grew up in Regina (and still call myself a Reginan though living away for school/work), and always heard/used "Saskatchewaner" myself. But I agree "Saskatchewanian" is definitely used a lot too even though it's an even wonkier mouthful than "Saskatchewan" already is.
Ppl from S'toon I always called "Saskatooners" (SASSkuhTOOnur), but I know I'm a minority in that. Even though obviously anything ending with an "n" becomes "ner", eg London -> Londoner, Berlin -> Berliner, Dublin -> Dubliner, Saskatchewan -> Saskatchewaner, etc.
Hmm, I woulda guessed someone from Saskatoon was a Saskatooner or Sask-a-toon-e-an.
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