The median home price in Alaska is $342,000. At 80% LTV, the typical loan is $273,600 at the current 7.05% average rate, producing a monthly P+I payment of $1,829. Total interest over 30 years at this rate: $385,007.
Property taxes in Alaska average 1.19% of assessed value, or $4,070 per year on the median home. This adds $339/month to your all-in housing cost. When evaluating a refinance, factor in property tax and insurance for a complete picture.
Alaska has no state income tax, so there is no state-level mortgage interest deduction. The federal deduction still applies on loans up to $750,000 for itemizers.