im from the north. will i fit in

I'm from way up north too. Its not that it hurts your chances, but with Kappa and a few others it doesn't help(they prefer southern, but aren't nearly as obsessed with having in-state or southern, members as sororities at other southern schools are), but if you are cute, sweet, and put together, EVERY house, kappa included, will look at and consider you.
To be completely honest, the houses go off of who "vibes" well. All houses eliminate to some extent because of looks, grades, place of origin ect.
However, if you fit in as a person, even if you deviate from their norm look wise or origin wise, you will likely get a bid.
Being a legacy helps- at the very least it gets you more of a chance of being invited back the first night for most houses (can't confirm for all, especially since some houses have SO many legacies). Get letters of recommendation if you can.
You'll be fine. Keep an open mind, realize your home may or may not be where your family went, and you'll be fine.