Star Valley Ranch is a town in Lincoln County, Wyoming, United States.

It was incorporated on November 8, 2005;[5] at the 2000 census, it was only a census-designated place (CDP).

According to the United States Census Bureau, the town has a total area of 2.70 square miles (6.99 km2), all land.

19.6% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older.

12.9% of all households were made up of individuals, and 7.0% had someone living alone who was 65 years of age or older.

None of the families and 3.9% of the population were living below the poverty line, including no under eighteens and 8.8% of those over 64.

Public education in the town of Star Valley Ranch is provided by Lincoln County School District #2.