Old Greenwich is a city of 6,936 people in Connecticut. That is roughly 161% ahead of the Connecticut median. The median household earns $250,000+, about 204% above the national median. This is an unusually credentialed place: 85% of adults have a four-year degree. The typical home is worth $1,844,700. Renters pay $3,500+ a month at the median.
At a glance
Wealthier
median household income $250,000+, above the US median
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)6.9%(7)
US avg: 26.4%
Gulf War (1990s)6.9%(7)
US avg: 24.3%
Vietnam era46.5%(47)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II13.9%(14)
US avg: 1%
Share of the 101 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Old Greenwich, decade by decade
Old Greenwich population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
2010
6,611
$281,489
$1,438,572+
80.6%
31.0
2020
6,962
$289,374
$1,957,806
84.3%
46.6
2024
6,936
$250,000+
$1,844,700
85.4%
49.6
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
How many people live in Old Greenwich, Connecticut?
Old Greenwich, Connecticut has about 6,936 residents according to the 2024 American Community Survey.
What is the median household income in Old Greenwich, Connecticut?
The typical household in Old Greenwich, Connecticut earns $250,000 or more a year. The Census Bureau does not publish medians above that cap, so the exact figure is not known.
Is Old Greenwich, Connecticut expensive?
In Old Greenwich, Connecticut, the median home is worth about $1,844,700, and the typical rent is $3,500 or more a month.
How educated are people in Old Greenwich, Connecticut?
About 85.4% of adults age 25 and over in Old Greenwich, Connecticut hold a bachelor's degree or higher.
What is the poverty rate in Old Greenwich, Connecticut?
About 3.6% of people in Old Greenwich, Connecticut live below the federal poverty line.
