Elk Mountain is a town in Carbon County, Wyoming, United States. The population was 191 at the 2010 census. The town shares its name with a mountain 7 miles (11 km) southwest of town. According to the United States Census Bureau, the town has a total area of 0.28 square miles (0.73 km2), all of it land.
As of the census of 2010, there were 191 people, 76 households, and 58 families residing in the town. The population density was 682.1 inhabitants per square mile (263.4 /km2). There were 109 housing units at an average density of 389.3 per square mile (150.3 /km2). The racial makeup of the town was 98.4% White, 1.0% African American, and 0.5% Native American. Hispanic or Latino of any race were 0.5% of the population.
As of the census of 2000, there were 192 people, 74 households, and 52 families residing in the town. The population density was 676.5 people per square mile (264.8/km²). There were 116 housing units at an average density of 408.7 per square mile (160.0/km²). The racial makeup of the town was 95.83% White, 1.04% Native American, 2.08% from other races, and 1.04% from two or more races. Hispanic or Latino of any race were 5.21% of the population.
There were 74 households out of which 35.1% had children under the age of 18 living with them, 63.5% were married couples living together, 5.4% had a female householder with no husband present, and 29.7% were non-families. 28.4% of all households were made up of individuals and 14.9% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.17.
Public education in the town of Elk Mountain is provided by Carbon County School District #2. Zoned campuses include Elk Mountain Elementary School (grades K-6) and H.E.M. Junior/Senior High School (grades 7-12).