Basalt is a city in Bingham County, Idaho, United States.

[5] The community was named for deposits of basalt near the original town site.

[4] According to the United States Census Bureau, the city has a total area of 0.30 square miles (0.78 km2), all of it land.

There were 142 housing units at an average density of 473.3 per square mile (182.7/km2).

15.9% of all households were made up of individuals, and 9.8% had someone living alone who was 65 years of age or older.

11.6% of all households were made up of individuals, and 7.4% had someone living alone who was 65 years of age or older.