Promise City is located in Iowa. Promise City, Iowa has a population of 97. Promise City is less family-centric than the surrounding county with 29.17% of the households containing married families with children. The county average for households married with children is 31.58%.
The median household income in Promise City, Iowa is $35,208. The median household income for the surrounding county is $53,039 compared to the national median of $69,021. The median age of people living in Promise City is 55.6 years.
The average high temperature in July is 85.2 degrees, with an average low temperature in January of 13.1 degrees. The average rainfall is approximately 38 inches per year, with 23.8 inches of snow per year.