Sebec is a town in Piscataquis County, Maine, United States.

There were 420 housing units at an average density of 11.4 per square mile (4.4/km2).

The racial makeup of the town was 97.6% White, 0.8% Native American, 0.2% Asian, and 1.4% from two or more races.

21.6% of all households were made up of individuals, and 8.5% had someone living alone who was 65 years of age or older.

There were 361 housing units at an average density of 9.8 per square mile (3.8/km2).

23.7% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older.