Middletown 52638 Real EstateMiddletown is located in Iowa. Middletown, Iowa 52638has a population of 388. Middletown 52638 is more family-centric than the surrounding county with 33.33% of the households containing married families with children. The county average for households married with children is 26.82%. The median household income in Middletown, Iowa 52638 is $58,056. The median household income for the surrounding county is $47,524 compared to the national median of $57,652. The median age of people living in Middletown 52638 is 31.9 years. Middletown WeatherThe average high temperature in July is 86.8 degrees, with an average low temperature in January of 17.2 degrees. The average rainfall is approximately 38.2 inches per year, with 23.5 inches of snow per year. Middletown MapReal estate near MiddletownNearby CitiesNearby Cities Homes for Sale |