Port Byron Real EstatePort Byron is located in Illinois. Port Byron, Illinois has a population of 1,825. Port Byron is more family-centric than the surrounding county with 34.48% of the households containing married families with children. The county average for households married with children is 25.55%. The median household income in Port Byron, Illinois is $68,472. The median household income for the surrounding county is $51,426 compared to the national median of $57,652. The median age of people living in Port Byron is 42.5 years. Port Byron WeatherThe average high temperature in July is 85.1 degrees, with an average low temperature in January of 14.5 degrees. The average rainfall is approximately 36.5 inches per year, with 25.2 inches of snow per year. Port Byron MapReal estate near Port ByronNearby CitiesNearby Cities Homes for Sale |