[4] Steamboat is located in northeastern Arizona on the Colorado Plateau.

According to the United States Census Bureau, the CDP has a total area of 2.4 square miles (6.2 km2), all land.

There were 92 housing units at an average density of 39.0 per square mile (15.1/km2).

11% of all households were made up of individuals, and 4% had someone living alone who was 65 years of age or older.

Steamboat is served by the Ganado Unified School District.