Riverside is a town in Carbon County, Wyoming, United States. The population was 52 at the 2010 census.
Riverside is located at 41°12′55″N 106°46′59″W (41.215243, -106.782961).
According to the United States Census Bureau, the town has a total area of 0.27 square miles (0.70 km2), all land.
According to the U.S. National Climatic Data Center, Riverside is, together with the town of West Yellowstone in Yellowstone National Park, the coldest (inhabited) spot in the whole state of Wyoming. On February 9, 1933, −66 °F or −54.4 °C was recorded there, the coldest temperature ever recorded in Wyoming.
As of the census of 2010, there were 52 people, 34 households, and 15 families residing in the town. The population density was 192.6 inhabitants per square mile (74.4/km2). There were 53 housing units at an average density of 196.3 per square mile (75.8/km2). The racial makeup of the town was 98.1% White and 1.9% Native American. Hispanic or Latino of any race were 1.9% of the population.
There were 34 households, of which 5.9% had children under the age of 18 living with them, 41.2% were married couples living together, 2.9% had a male householder with no wife present, and 55.9% were non-families. 55.9% of all households were made up of individuals, and 20.6% had someone living alone who was 65 years of age or older.