[4] Sutton-Alpine is located in southeastern Matanuska-Susitna Borough at 61°42′45″N 148°53′8″W / 61.71250°N 148.88556°W / 61.71250; -148.88556 (61.712473, -148.885625),[5] 52–72 miles (84–116 km) northeast of Anchorage along the Glenn Highway.

It sits along Alaska Route 1, the Glenn Highway, between Buffalo Soapstone to the west and Chickaloon to the east.

The Matanuska River forms the southern edge of the CDP.

Palmer, the borough seat, is 14 miles (23 km) to the southwest via the Glenn Highway.

[1] Sutton has a continental subarctic climate (Köppen Dfc) with cold, snowy winters and mild summers.

29.5% of all households were made up of individuals, and 6.1% had someone living alone who was 65 years of age or older.