Old Greenwich is located in Connecticut. Old Greenwich, Connecticut has a population of 6,860. Old Greenwich is more family-centric than the surrounding county with 49.76% of the households containing married families with children. The county average for households married with children is 36.27%.
The median household income in Old Greenwich, Connecticut is $236,250. The median household income for the surrounding county is $89,773 compared to the national median of $57,652. The median age of people living in Old Greenwich is 39.8 years.
The average high temperature in July is 84 degrees, with an average low temperature in January of 19.6 degrees. The average rainfall is approximately 50 inches per year, with 33.8 inches of snow per year.