Greenwich, CT population, income and ZIP codes

Greenwich CDP is a mid-size town in Connecticut, with 14,528 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #29 of 215 ranked by population — larger than 86% of them. The median age here is 44 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Greenwich CDP earn a median of $136,154 a year, 73.4% above the national figure of $78,538 and 41% above the $96,484 median for the 159 Connecticut cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 8.9% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Greenwich CDP is valued at $1,486,100, 389.8% above the national figure and 332% above the $344,200 peer median, while median gross rent runs $2,121 a month, 50.9% above the national figure, or roughly $25,452 across a full year. A household on the local median income would put about 18.7% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 10.9×, against roughly 3.9× nationally, so buying is out of reach on local earnings alone and the ownership market leans on outside income, equity or dual high earners. 52% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

Home values sit at 10.9× median household income, far past the 3.9× national mark, so ownership costs here are set by something other than local wages — second homes, retirees with equity, or commuters earning elsewhere.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.