Buffalo Soapstone is a census-designated place (CDP) in Matanuska-Susitna Borough, Alaska, United States.

It is part of the Anchorage, Alaska Metropolitan Statistical Area.

Buffalo Soapstone first appeared on the 2000 U.S. Census as a census-designated place (CDP).

[5] As of the census of 2000,[6] there were 699 people, 233 households, and 171 families residing in the CDP.

19.3% of all households were made up of individuals, and 1.7% had someone living alone who was 65 years of age or older.