Dietrich is a city in Lincoln County, Idaho, United States.

[4] According to the United States Census Bureau, the city has a total area of 0.34 square miles (0.88 km2), all of it land.

21.3% of all households were made up of individuals, and 9.6% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 92.67% White, 0.67% African American, and 6.67% from two or more races.

27.6% of all households were made up of individuals, and 17.2% had someone living alone who was 65 years of age or older.

There were 17.4% of families and 20.6% of the population living below the poverty line, including 22.5% of under eighteens and none of those over