Colchester, CT Profile: Facts, Map & Data


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Colchester, Connecticut - Basic Facts

The Colchester Census Designated Place had a population of 4,803 as of July 1, 2017.

The primary coordinate point for Colchester is located at latitude 41.5778 and longitude -72.3329 in New London County. The formal boundaries for the Colchester Census Designated Place (see map below) encompass a land area of 4.47 sq. miles and a water area of 0 sq. miles. New London County is in the Eastern time zone (GMT -5). The elevation is 466 feet.

The Colchester Census Designated Place (GNIS ID: 2378348) 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 Colchester Census Designated Place is located within Town of Colchester, a minor civil division (MCD) of New London County.

Beneath the boundary map are tables with Colchester population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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Colchester Census Designated Place, CT Boundary Map

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Colchester, CT Data & Demographics (As of July 1, 2017)


Total Population 4,803
Daytime Population: Workers 4,008
Daytime Population: Residents 2,066
Total Daytime Population (TDP) 6,074
Ratio TDP/Total Population1 1.26
Population in Households 4,634
Population in Familes 3,665
Population in Group Qrtrs 169
Population Density2 1,075
Diversity Index3 29


Median Household Income $71,723
Average Household Income $83,708
Per Capita Income $34,528


Total Housing Units 2,149 (100%)
Owner Occupied HU 1,201 (55.9%)
Renter Occupied HU 786 (36.6%)
Vacant Housing Units 161 ( 7.5%)
Median Home Value $234,035
Average Home Value $251,332


Total Households 1,988
Average Household Size 2.33
Family Households 1,271
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 0.06% 0.19%
Households 0.05% 0.14%
Families 0.43% 0.09%
Median Household Income   2.01%
Per Capita Income   2.57%

Colchester, CT - Peer Comparisons by Rank and Percentile

The table below compares Colchester to the other 142 incorporated cities, towns and CDPs in Connecticut by rank and percentile using July 1, 2017 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 # 62 57th
Population Density # 91 37th
Diversity Index # 75 47th
Median Household Income # 73 49th
Per Capita Income # 92 36th

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

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