Promontory is located in Utah. Promontory, Utah has a population of 380.
The median household income in Promontory, Utah is $51,700. The median household income for the surrounding county is $58,835 compared to the national median of $57,652. The median age of people living in Promontory is 30.5 years.
The average high temperature in July is 89.8 degrees, with an average low temperature in January of 22.4 degrees. The average rainfall is approximately 18.3 inches per year, with 39.8 inches of snow per year.