Hartville is a town in Platte County, Wyoming, United States.

[7] According to the United States Census Bureau, the town has a total area of 0.25 square miles (0.65 km2), all land.

There were 45 housing units at an average density of 180.0 per square mile (69.5/km2).

40.6% of all households were made up of individuals, and 18.8% had someone living alone who was 65 years of age or older.

37.1% of all households were made up of individuals, and 14.3% had someone living alone who was 65 years of age or older.

There were 36.4% of families and 28.4% of the population living below the poverty line, including 35.3% of under eighteens and 20.0% of those over 64.

Public education in the town of Hartville is provided by Platte County School District #2.