Arlington, MA Profile: Facts, Map & Data


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Arlington, Massachusetts - Basic Facts

The Arlington Census Designated Place had a population of 45,105 as of July 1, 2017. Arlington ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Massachusetts. See peer rankings below.

The primary coordinate point for Arlington is located at latitude 42.4187 and longitude -71.1639 in Middlesex County. The formal boundaries for the Arlington Census Designated Place (see map below) encompass a land area of 5.15 sq. miles and a water area of 0.35 sq. miles. Middlesex County is in the Eastern time zone (GMT -5). The elevation is 69 feet.

The Arlington Census Designated Place (GNIS ID: 2377981) 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 Arlington Census Designated Place is located within Town of Arlington, a minor civil division (MCD) of Middlesex County.

Beneath the boundary map are tables with Arlington 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 Arlington: Menotomy.

Neighborhood Data

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Arlington Census Designated Place, MA Boundary Map

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


Total Population 45,105
Daytime Population: Workers 12,461
Daytime Population: Residents 19,862
Total Daytime Population (TDP) 32,323
Ratio TDP/Total Population1 0.72
Population in Households 44,807
Population in Familes 33,698
Population in Group Qrtrs 298
Population Density2 8,765
Diversity Index3 38


Median Household Income $97,083
Average Household Income $131,957
Per Capita Income $57,858


Total Housing Units 20,744 (100%)
Owner Occupied HU 11,629 (56.1%)
Renter Occupied HU 8,101 (39.1%)
Vacant Housing Units 1,014 ( 4.9%)
Median Home Value $556,517
Average Home Value $577,156


Total Households 19,730
Average Household Size 2.27
Family Households 11,368
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 0.71% 0.78%
Households 0.54% 0.73%
Families 0.48% 0.7%
Median Household Income   1.86%
Per Capita Income   2.38%

Arlington, MA - Peer Comparisons by Rank and Percentile

The table below compares Arlington 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 # 28 89th
Population Density # 12 96th
Diversity Index # 63 75th
Median Household Income # 44 83rd
Per Capita Income # 28 89th

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

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