Harpster Real EstateHarpster is located in Idaho. Harpster, Idaho has a population of 113. The median household income in Harpster, Idaho is $26,458. The median household income for the surrounding county is $40,299 compared to the national median of $57,652. The median age of people living in Harpster is 50.5 years. Harpster WeatherThe average high temperature in July is 83.4 degrees, with an average low temperature in January of 24.4 degrees. The average rainfall is approximately 27.6 inches per year, with 38.8 inches of snow per year. Harpster MapReal estate near HarpsterNearby CitiesNearby Cities Homes for Sale |