Williamson Real EstateWilliamson is located in Iowa. Williamson, Iowa has a population of 135. Williamson is more family-centric than the surrounding county with 46.67% of the households containing married families with children. The county average for households married with children is 26.38%. The median household income in Williamson, Iowa is $44,375. The median household income for the surrounding county is $47,325 compared to the national median of $57,652. The median age of people living in Williamson is 31.9 years. Williamson WeatherThe average high temperature in July is 85.1 degrees, with an average low temperature in January of 11.3 degrees. The average rainfall is approximately 37.7 inches per year, with 23.2 inches of snow per year. Williamson MapReal estate near WilliamsonNearby CitiesNearby Cities Homes for Sale |