Old Greenwich, CT Profile: Facts, Map & Data


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Old Greenwich, Connecticut - Basic Facts

The Old Greenwich Census Designated Place is a community or populated place (Class Code U5) located in Fairfield County at latitude 41.0201 and longitude -73.5677. Fairfield County is in the Eastern time zone (GMT -5). The elevation is 20 feet.

The formal official name is the Old Greenwich Census Designated Place, but most people and references simply refer to it as Old Greenwich, Connecticut.

The U5 Census Class Code for Old Greenwich indicates a populated place that is also a census designated place with the same name.. The Census Designated Place has a Functional Status Code "S" which identifies a statistical entity.

The formal boundaries for the Old Greenwich Census Designated Place (see map below) encompass a land area of 2 sq. miles and a water area of 1.48 sq. miles.

Alternate Unofficial Names for Old Greenwich: Greenwich Old Town, Monakeway, SoundBeach.

Old Greenwich Census Designated Place, CT Boundary Map


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Old Greenwich, CT Data & Demographics (As of July 1, 2014)


Total Population 6,866
Population in Households 6,855
Population in Familes 6,224
Population in Group Qrtrs 11
Population Density1 3,459
Diversity Index2 30


Total Households 2,337
Average Household Size 2.93
Family Households 1,846
Average Family Size 3


Total Housing Units 2,492 (100%)
Owner Occupied HU 1,891 (75.9%)
Renter Occupied HU 446 (17.9%)
Vacant Housing Units 155 ( 6.2%)
Median Home Value $1,000,001
Average Home Value $1,016,592


Median Household Income $200,001
Average Household Income $244,451
Per Capita Income $83,225
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population 0.89% 0.98%
Households 0.78% 0.94%
Families 0.65% 0.85%
Median Household Income   0.0%
Per Capita Income   3.6%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.


Old Greenwich, CT - Peer Comparisons by Rank and Percentile

The table below compares Old Greenwich to the other 142 incorporated cities, towns and CDPs in Connecticut by rank and percentile using July 1, 2014 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 # 52 64th
Population Density1 # 19 87th
Diversity Index2 # 62 57th
Median Household Income # 1 100th
Per Capita Income # 1 100th

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