Mount Vernon Real EstateMount Vernon is located in Iowa. Mount Vernon, Iowa has a population of 4,461. Mount Vernon is more family-centric than the surrounding county with 45.83% of the households containing married families with children. The county average for households married with children is 33.46%. The median household income in Mount Vernon, Iowa is $80,543. The median household income for the surrounding county is $62,702 compared to the national median of $57,652. The median age of people living in Mount Vernon is 22.4 years. Mount Vernon WeatherThe average high temperature in July is 85.3 degrees, with an average low temperature in January of 13.3 degrees. The average rainfall is approximately 36.6 inches per year, with 31.5 inches of snow per year. Mount Vernon MapReal estate near Mount VernonNearby CitiesNearby Cities Homes for Sale |