Fairbanks, Alaska.
Not only HS friendly, but if you decide to join a homeschool "correspondence school," you get a stipend ($1600 or so) for each child, every year, with which to purchase school stuff, pay for museum tickets or opera tickets, classes, dance lessons, karate, swim, piano lessons, whatever. You get to pick your own curricula (as long as it isn't religious in nature) and set your own "schedule" --and I use that term loosely.
There are hoops to jump through (standardised testing grades 3 and up, and mandatory work samples and grades every quarter.
But as super-eclectic homeschoolers, we've had great success with it.
Bonus: At the end of their high school year, they have a graduation ceremony and receive a real diploma.
We're secular homeschoolers, but I know a lot of families who are religious homeschoolers that do the program thing, and many who go indy so they can use religious materials exclusively.
We also know a LOT of "indy" homeschoolers; this town is HS friendly in a big way!
love, penelope