Reliance is a census-designated place (CDP) in Sweetwater County, Wyoming, United States. The population was 714 at the 2010 census.
Reliance is located at 41°39′50″N 109°12′47″W (41.664002, -109.213068).
According to the United States Census Bureau, the CDP has a total area of 4.1 square miles (10.7 km2), all of it land.
As of the census of 2000, there were 665 people, 249 households, and 182 families residing in the CDP. The population density was 69.8 people per square mile (26.9/km2). There were 272 housing units at an average density of 28.5/sq mi (11.0/km2). The racial makeup of the CDP was 92.33% White, 0.90% African American, 0.45% Native American, 0.30% Asian, 0.15% Pacific Islander, 3.16% from other races, and 2.71% from two or more races. Hispanic or Latino of any race were 7.97% of the population.
There were 249 households, out of which 43.4% had children under the age of 18 living with them, 54.2% were married couples living together, 10.4% had a female householder with no husband present, and 26.9% were non-families. 22.5% of all households were made up of individuals, and 7.6% had someone living alone who was 65 years of age or older. The average household size was 2.67 and the average family size was 3.12.
In the CDP, the population was spread out, with 32.8% under the age of 18, 9.0% from 18 to 24, 29.9% from 25 to 44, 21.1% from 45 to 64, and 7.2% who were 65 years of age or older.