Willimantic, CT Profile: Facts, Map & Data


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Willimantic, Connecticut - Basic Facts

The Willimantic Census Designated Place had a population of 17,919 as of July 1, 2017. Willimantic 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 Willimantic is located at latitude 41.7154 and longitude -72.2178 in Windham County. The formal boundaries for the Willimantic Census Designated Place (see map below) encompass a land area of 4.4 sq. miles and a water area of 0.08 sq. miles. Windham County is in the Eastern time zone (GMT -5). The elevation is 223 feet.

The Willimantic Census Designated Place (GNIS ID: 2377883) 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 Willimantic Census Designated Place is located within Town of Windham, a minor civil division (MCD) of Windham County.

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

Alternate Unofficial Names for Willimantic: Thread City, Wallamantuck, Walumantticuk, Waramantick, We-am-man-tuck, Wewemantick.

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Willimantic Census Designated Place, CT Boundary Map

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


Total Population 17,919
Daytime Population: Workers 7,540
Daytime Population: Residents 9,261
Total Daytime Population (TDP) 16,801
Ratio TDP/Total Population1 0.94
Population in Households 15,133
Population in Familes 10,716
Population in Group Qrtrs 2,786
Population Density2 4,075
Diversity Index3 81


Median Household Income $37,757
Average Household Income $54,786
Per Capita Income $21,839


Total Housing Units 6,376 (100%)
Owner Occupied HU 1,959 (30.7%)
Renter Occupied HU 3,864 (60.6%)
Vacant Housing Units 553 ( 8.7%)
Median Home Value $169,144
Average Home Value $174,936


Total Households 5,823
Average Household Size 2.6
Family Households 3,298
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 0.14% -0.1%
Households 0.03% -0.16%
Families -0.11% -0.26%
Median Household Income   0.81%
Per Capita Income   2.2%

Willimantic, CT - Peer Comparisons by Rank and Percentile

The table below compares Willimantic 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 # 32 78th
Population Density # 14 91st
Diversity Index # 7 95th
Median Household Income # 140 2nd
Per Capita Income # 139 3rd

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

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