Mt Union Real EstateMt Union is located in Iowa. Mt Union, Iowa has a population of 60. The median household income in Mt Union, Iowa is $36,750. The median household income for the surrounding county is $52,275 compared to the national median of $57,652. The median age of people living in Mt Union is 31.9 years. Mt Union WeatherThe average high temperature in July is 86 degrees, with an average low temperature in January of 16.1 degrees. The average rainfall is approximately 37.6 inches per year, with 26.4 inches of snow per year. Mt Union MapReal estate near Mt UnionNearby CitiesNearby Cities Homes for Sale |