Palmer is the borough seat of the Matanuska-Susitna Borough in the state of Alaska, USA. It is part of the Anchorage Metropolitan Statistical Area. As of the 2010 census, the population of the city is 5,937. The first people to live in the Matanuska Valley, where Palmer is located, were the Dena’ina and Ahtna Athabaskans. They moved throughout the area, living a subsistence lifestyle and trading with other native groups. Their trade routes were along the Matanuska River.