Elmo is a town in Emery County, Utah, United States.

According to the United States Census Bureau, the town has a total area of 0.66 square miles (1.7 km2), all land.

[5] As of the census[3] of 2000, there were 368 people, 112 households, and 93 families residing in the town.

There were 120 housing units at an average density of 195.0 per square mile (74.7/km2).

16.1% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older.