Susitna North is a census-designated place in the Matanuska-Susitna Borough in the U.S. state of Alaska. It is part of the Anchorage, Alaska Metropolitan Statistical Area. The population was 1,564 at the 2020 census, up from 1,260 in 2010. The CDP was formerly named Y, for the intersection of the George Parks Highway and the Talkeetna Spur Ro…Susitna North is a census-designated place in the Matanuska-Susitna Borough in the U.S. state of Alaska. It is part of the Anchorage, Alaska Metropolitan Statistical Area. The population was 1,564 at the 2020 census, up from 1,260 in 2010. The CDP was formerly named Y, for the intersection of the George Parks Highway and the Talkeetna Spur Road. In the immediate vicinity of this intersection is a community center, containing a health clinic, law enforcement, Susitna Valley High School, and retail services for highway travelers such as gasoline and food.