Garrison is located in Iowa. Garrison, Iowa has a population of 324. Garrison is less family-centric than the surrounding county with 13.68% of the households containing married families with children. The county average for households married with children is 31.22%.
The median household income in Garrison, Iowa is $51,250. The median household income for the surrounding county is $72,334 compared to the national median of $69,021. The median age of people living in Garrison is 40.7 years.
The average high temperature in July is 83.8 degrees, with an average low temperature in January of 10.1 degrees. The average rainfall is approximately 37.4 inches per year, with 31.5 inches of snow per year.
