Killingworth is located in Connecticut. Killingworth, Connecticut has a population of 6,550. Killingworth is more family-centric than the surrounding county with 31% households with children. The county percentage for households with children is 24%.
The median household income in Killingworth, Connecticut is $110,375. The median household income for the surrounding county is $86,900 compared to the national median of $66,222. The median age of people living in Killingworth is 52.7 years.
The average high temperature in July is 84.2 degrees, with an average low temperature in January of 20.3 degrees. The annual precipitation is 53.32.