Any insurance firm that operates in the state that the home is in and provides home insurance should be able to help you (though you should get quotes from several companies since fees may very widely. I also suggest that you price the policies at least every few years since fees can change as well as how much insurance you need).
Where you live will not be a concern except when they figure the premiums for the policy.
Are you planning on renting the property during the six months that you are not going to be there?
The insurance company may charge more for the time that the property sits empty, since empty homes pose more of a risk.
Have a great day and congratulations on your home purchase!