I'm going to suggest Washington state. There is no income tax, the sales tax is reasonable, and you may find the rain helps you stay focused on coding. I would

I'm going to suggest Washington state. There is no income tax, the sales tax is reasonable, and you may find the rain helps you stay focused on coding. I would suggest somewhere around Bellingham, WA - you would be 90 mins north of Seattle and 90 mins south of Vancouver, BC.