Old Greenwich is a neighborhood/section and census-designated place in Greenwich in Fairfield County, Connecticut, United States. As of the 2020 census it had a population of 6,962.[1]
It was founded in 1641. Old Greenwich has become popular for home buyers and ranks at 7th place among the nation's wealthiest communities in an annual Bloomberg report published March 5, 2018, "America's 100 Richest Places".