Marble Rock is located in Iowa. Marble Rock, Iowa has a population of 306. Marble Rock is less family-centric than the surrounding county with 21.18% of the households containing married families with children. The county average for households married with children is 29.67%.
The median household income in Marble Rock, Iowa is $56,667. The median household income for the surrounding county is $55,827 compared to the national median of $69,021. The median age of people living in Marble Rock is 50.5 years.
The average high temperature in July is 82.6 degrees, with an average low temperature in January of 7.7 degrees. The average rainfall is approximately 34.6 inches per year, with 33.4 inches of snow per year.
