Greenwich, CT Profile: Facts, Map & Data


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Greenwich, Connecticut - Basic Facts

The Greenwich Census Designated Place had a population of 13,362 as of July 1, 2018. Greenwich ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Connecticut. See peer rankings below.

The primary coordinate point for Greenwich is located at latitude 41.0259 and longitude -73.6305 in Fairfield County. The formal boundaries for the Greenwich Census Designated Place (see map below) encompass a land area of 4.11 sq. miles and a water area of 0.32 sq. miles. Fairfield County is in the Eastern time zone (GMT -5). The elevation is 95 feet.

The Greenwich Census Designated Place (GNIS ID: 2631566) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Greenwich Census Designated Place is located within Town of Greenwich, a minor civil division (MCD) of Fairfield County.

Beneath the boundary map are tables with Greenwich population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

Alternate Unofficial Names for Greenwich: Horse Neck.

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Greenwich Census Designated Place, CT Boundary Map

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Greenwich, CT Data & Demographics (As of July 1, 2018)


Total Population 13,362
Population in Households 13,284
Population in Familes 10,126
Population in Group Qrtrs 78
Population Density2 3,250
Diversity Index3 57


Median Household Income $102,363
Average Household Income $166,540
Per Capita Income $72,942


Total Housing Units 6,730 (100%)
Owner Occupied HU 2,495 (37.1%)
Renter Occupied HU 3,370 (50.1%)
Vacant Housing Units 864 (12.8%)
Median Home Value $1,055,205
Average Home Value $1,289,543


Total Households 5,866
Average Household Size 2.26
Family Households 3,329
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.39% 0.36%
Households 0.18% 0.22%
Families 0.3% 0.27%
Median Household Income   2.46%
Per Capita Income   2.72%

Greenwich, CT - Peer Comparisons by Rank and Percentile

The table below compares Greenwich to the other 142 incorporated cities, towns and CDPs in Connecticut by rank and percentile using July 1, 2018 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 35 76th
Population Density # 23 85th
Diversity Index # 23 85th
Median Household Income # 25 83rd
Per Capita Income # 16 89th

Additional comparisons and rankings can be made with a VERY EASY TO USE Connecticut Census Data Comparison Tool.

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