Arlington, MA Profile: Facts & Data


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Arlington, Massachusetts - Basic Facts

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The Arlington CDP(1) had a population of 45,741 as of July 1, 2022. Arlington ranks in the upper 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 Arlington is located at latitude 42.4154 and longitude -71.1564 in Middlesex County. The formal boundaries for the Arlington Census Designated Place 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 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.

Alternate Unofficial Names for Arlington: Menotomy.

  1. A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

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  1. Arlington 2022 Demographic Data
  2. Growth Rates for Arlington (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Massachusetts Research Tools (Easy Tools & Current Data)
  3. Massachusetts Data Comparison Tool - 2022 Demographics

Arlington, MA Data & Demographics (As of July 1, 2022)


Total Population 45,741 (100%)
Population in Households 45,370 (99.2%)
Population in Families 34,007 (74.3%)
Population in Group Quarters1 371 ( 0.8%)
Population Density 8,894
Diversity Index2 46


Median Household Income $129,480
Average Household Income $185,947
% of Income for Mortgage4 30%
Per Capita Income $79,830
Wealth Index5 200


Total HU (Housing Units) 20,529 (100%)
Owner Occupied HU 11,685 (56.9%)
Renter Occupied HU 7,948 (38.7%)
Vacant Housing Units 896 ( 4.4%)
Median Home Value $745,426
Average Home Value $785,079
Housing Affordability Index3 76


Total Households 19,633
Average Household Size 2.31
Family Households 11,163
Average Family Size 3.00
  1. Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
  2. 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 races 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.
  3. The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
  4. The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
  5. The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.


2020-2022 2022-2027
Population -0.55% -0.24%
Households -0.10% -0.29%
Families   -0.27%
Median Household Income   3.56%
Per Capita Income   2.84%
Owner Occupied HU   0.09%

Arlington, MA - Peer Comparisons by Rank and Percentile

The table below compares Arlington to the other 248 incorporated cities, towns and CDPs in Massachusetts by rank and percentile using July 1, 2022 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 # 29 89th
Population Density # 13 95th
Median Household Income # 41 84th
Housing Affordability Index # 48 19th
Per Capita Income # 24 91st
Diversity Index # 68 73rd

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

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