I have not come across any references to contests in Alaska. However, I've added a lot of gingerbread house contest links at the gingerbreadhousebaking Yahoo Group. I will add links to Alaskan contests if I find any.
To join the gingerbreadhousebaking Yahoo Group (established by Loreta Anderson, who created this gingerbread website, frankysattic) click on this link and then click on "Join This Group" and follow the instructions.
http://groups.yahoo.com/group/gingerbreadhousebaking/