Barnum 50518 Real EstateBarnum is located in Iowa. Barnum, Iowa 50518has a population of 292. Barnum 50518 is less family-centric than the surrounding county with 25.23% of the households containing married families with children. The county average for households married with children is 27.14%. The median household income in Barnum, Iowa 50518 is $41,111. The median household income for the surrounding county is $42,148 compared to the national median of $57,652. The median age of people living in Barnum 50518 is 30.5 years. Barnum WeatherThe average high temperature in July is 83.9 degrees, with an average low temperature in January of 7.9 degrees. The average rainfall is approximately 34.2 inches per year, with 35.8 inches of snow per year. Barnum MapReal estate near BarnumNearby CitiesNearby Cities Homes for Sale |