Sweeney Ranch is an unincorporated community in Sweetwater County, Wyoming, United States.

[3] According to the United States Census Bureau, in 2000 the CDP had a total area of 8.1 square miles (21.0 km2), all land.

As of the census[2] of 2000, there were 17 people, 6 households, and 4 families residing in the CDP.

There were 6 households, out of which 33.3% had children under the age of 18 living with them, 66.7% were married couples living together, 16.7% had a female householder with no husband present, and 16.7% were non-families.

16.7% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older.