Clemons is a city in Marshall County, Iowa, United States.

[4] According to the United States Census Bureau, the city has a total area of 0.27 square miles (0.70 km2), all land.

There were 64 housing units at an average density of 256.0 per square mile (98.8/km2).

There were 66 housing units at an average density of 244.4 per square mile (94.4/km2).

21.1% of all households were made up of individuals, and 7.1% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 97.30% White, 1.35% African American, and 1.35% from two or more races.

21.3% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older.

There were none of the families and 4.2% of the population living below the poverty line, including no under eighteens and none of those over 64.