Alleman is located in Iowa. Alleman, Iowa has a population of 437. Alleman is less family-centric than the surrounding county with 22.96% of the households containing married families with children. The county average for households married with children is 34.82%.
The median household income in Alleman, Iowa is $88,750. The median household income for the surrounding county is $63,530 compared to the national median of $57,652. The median age of people living in Alleman is 49.4 years.
The average high temperature in July is 86.5 degrees, with an average low temperature in January of 11 degrees. The average rainfall is approximately 35.9 inches per year, with 27.5 inches of snow per year.