Groton, MA Profile: Facts, Map & Data


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Groton, Massachusetts - Basic Facts

The Groton Census Designated Place had a population of 1,190 as of July 1, 2017. Groton ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Massachusetts. See peer rankings below.

The primary coordinate point for Groton is located at latitude 42.6118 and longitude -71.5653 in Middlesex County. The formal boundaries for the Groton Census Designated Place (see map below) encompass a land area of 1.67 sq. miles and a water area of 0 sq. miles. Middlesex County is in the Eastern time zone (GMT -5). The elevation is 331 feet.

The Groton Census Designated Place (GNIS ID: 2378026) 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 Groton Census Designated Place is located within Town of Groton, a minor civil division (MCD) of Middlesex County.

Beneath the boundary map are tables with Groton 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 Groton: Groton Centre.

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Groton Census Designated Place, MA Boundary Map

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Groton, MA Data & Demographics (As of July 1, 2017)


Total Population 1,190
Daytime Population: Workers 1,515
Daytime Population: Residents 571
Total Daytime Population (TDP) 2,086
Ratio TDP/Total Population1 1.75
Population in Households 1,167
Population in Familes 1,021
Population in Group Qrtrs 23
Population Density2 712
Diversity Index3 18


Median Household Income $117,523
Average Household Income $155,443
Per Capita Income $55,920


Total Housing Units 521 (100%)
Owner Occupied HU 381 (73.1%)
Renter Occupied HU 110 (21.1%)
Vacant Housing Units 30 ( 5.8%)
Median Home Value $518,064
Average Home Value $535,884


Total Households 491
Average Household Size 2.38
Family Households 362
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 0.79% 0.71%
Households 0.58% 0.64%
Families 4.02% 0.65%
Median Household Income   1.77%
Per Capita Income   2.02%

Groton, MA - Peer Comparisons by Rank and Percentile

The table below compares Groton to the other 246 incorporated cities, towns and CDPs in Massachusetts 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 # 220 11th
Population Density # 197 20th
Diversity Index # 154 38th
Median Household Income # 16 94th
Per Capita Income # 35 86th

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

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