Plymouth Real EstatePlymouth is located in Iowa. Plymouth, Iowa has a population of 394. Plymouth is less family-centric than the surrounding county with 22.95% of the households containing married families with children. The county average for households married with children is 27.39%. The median household income in Plymouth, Iowa is $54,583. The median household income for the surrounding county is $50,569 compared to the national median of $57,652. The median age of people living in Plymouth is 41.5 years. Plymouth WeatherThe average high temperature in July is 82 degrees, with an average low temperature in January of 6.4 degrees. The average rainfall is approximately 34.9 inches per year, with 36.8 inches of snow per year. Plymouth MapReal estate near PlymouthNearby CitiesNearby Cities Homes for Sale |