Granite Real EstateGranite is located in Iowa. Granite, Iowa has a population of 448. The median household income in Granite, Iowa is $48,482. The median household income for the surrounding county is $62,012 compared to the national median of $57,652. The median age of people living in Granite is 36 years. Granite WeatherThe average high temperature in July is 83.9 degrees, with an average low temperature in January of 6.8 degrees. The average rainfall is approximately 27.8 inches per year, with 30.1 inches of snow per year. Granite MapReal estate near GraniteNearby CitiesNearby Cities Homes for Sale |