The coldest state in the US is Alaska. It is the most northern US state.
Alaska is a state, not a city. If you're asking if the coldest city in the US is in Alaska, then probably, depending on exactly how you define "coldest city". At any given moment, it's possible (if not terribly likely) that the coldest temperature measured in any US city is for a city not in Alaska.
Alaska
Alaska
Alaska. In the continental United States, Minnesota takes the cake.
Alaska. In the continental United States, Minnesota takes the cake.
Alaska.
Barrow Alaska
Consider spending your summer holiday in Beautiful Downtown Barrow, Alaska.
Fairbanks Alaska
The four cities in the US with the coldest average January temperatures are Fairbanks, Alaska; Barrow, Alaska; International Falls, Minnesota; and Duluth, Minnesota.
No US state is larger than Alaska. Alaska is the largest state in the US.