 Tok lies on a large, flat alluvial plain of the Tanana Valley between the Tanana River and the Alaska Range at an important junction of the Alaska Highway (Alaska Route 2) with the Glenn Highway (Alaska Route 1).According to the United States Census Bureau, the CDP has a total area of , all of it land.Tok has a dry-winter continental subarctic climate (Köppen "Dwc") with generally warm summers and severely cold winters.