Hartly Real EstateHartly is located in Delaware. Hartly, Delaware has a population of 50. Hartly is less family-centric than the surrounding county with 9.09% of the households containing married families with children. The county average for households married with children is 28.58%. The median household income in Hartly, Delaware is $62,292. The median household income for the surrounding county is $57,647 compared to the national median of $57,652. The median age of people living in Hartly is 29.7 years. Hartly WeatherThe average high temperature in July is 87 degrees, with an average low temperature in January of 27.1 degrees. The average rainfall is approximately 44.9 inches per year, with 15.7 inches of snow per year. Hartly MapReal estate near HartlyNearby CitiesNearby Cities Homes for Sale |