Groton, MA Profile: Facts, Map & Data


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Groton, Massachusetts - Basic Facts

The Groton Census Designated Place had a population of 1,172 as of July 1, 2016. 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, 2016.

Alternate Unofficial Names for Groton: Groton Centre.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


Groton Census Designated Place, MA Boundary Map

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Boundary Maps: Town of Groton | Middlesex County | Massachusetts Counties

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Groton, MA Data & Demographics (As of July 1, 2016)


Total Population 1,172
Population in Households 1,149
Population in Familes 1,006
Population in Group Qrtrs 23
Population Density1 701
Diversity Index2 17


Total Households 489
Average Household Size 2.35
Family Households 361
Average Family Size 3


Total Housing Units 525 (100%)
Owner Occupied HU 381 (72.6%)
Renter Occupied HU 109 (20.8%)
Vacant Housing Units 36 ( 6.9%)
Median Home Value $517,143
Average Home Value $525,592


Median Household Income $113,356
Average Household Income $150,121
Per Capita Income $54,228
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.67% 0.72%
Households 0.6% 0.69%
Families 4.63% 0.66%
Median Household Income   2.36%
Per Capita Income   1.76%
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.

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, 2016 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 # 221 11th
Population Density1 # 199 20th
Diversity Index2 # 156 37th
Median Household Income # 15 94th
Per Capita Income # 36 86th

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

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