Watertown, MA Profile: Facts & Data

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Watertown, Massachusetts - Basic Facts

The City of Watertown Town had a population of 35,814 as of July 1, 2019. Watertown 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 Watertown is located at latitude 42.3709 and longitude -71.1828 in Middlesex County. The formal boundaries for the City of Watertown Town encompass a land area of 3.99 sq. miles and a water area of 0.12 sq. miles. Middlesex County is in the Eastern time zone (GMT -5). The elevation is 62 feet.

The City of Watertown Town (GNIS ID: 618242) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Alternate Unofficial Names for Watertown: Saltonstall Plantation.

Jump to... (On This Page!)
  1. Watertown 2019 Demographic Data
  2. Growth Rates for Watertown (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 - 2019 Demographics

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Boundary Maps, Demographic Data, School Zones Review maps and data for the neighborhood, city, county, ZIP Code, and school zone. July 1, 2019, data includes home values, household income, percentage of homes owned, rented or vacant, etc.


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Watertown, MA Data & Demographics (As of July 1, 2019)

HOUSING AFFORDABILITY INDEX

Watertown, MA Housing Affordability Index is 83
State of Massachusetts Housing Affordability Index is 87
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.

WEALTH INDEX

Watertown, MA Wealth Index is 128
State of Massachusetts Wealth Index is 139
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.

These new demographic attributes are availiable for Neighborhoods, Cities, Counties, and ZIP Codes.

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  1. For information about schools and school attendance zones, use the HTL Address Tool
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  3. The new 2-Minute Introduction and Concise Guide to Big Data which will help you make the most effective use of HomeTownLocator Tools.
  4. See the References & Data Sources page for more information about methodology and sources of data.
  5. See the Massachusetts COVID-19 Data and US COVID-19 Data for more information on the spread of the novel coronavirus.

POPULATION

Total Population 35,814
Population in Households 35,575
Population in Families 23,632
Population in Group Qrtrs 239
Population Density 8,957
Diversity Index1 45
 

INCOME

Median Household Income $100,639
Average Household Income $129,173
Per Capita Income $58,738
Wealth Index3 128

HOUSING

Total Housing Units 17,253 (100%)
Owner Occupied HU 7,603 (44.1%)
Renter Occupied HU 8,679 (50.3%)
Vacant Housing Units 971 ( 5.6%)
Median Home Value $575,148
Housing Affordability Index2 83
 

HOUSEHOLDS

Total Households 16,282
Average Household Size 2.18
Family Households 8,130
Average Family Size 3
NOTES
  1. 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.
  2. 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.
  3. 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.

GROWTH RATE / YEAR

2010-2019 2019-2024
Population 1.25% 1.04%
Households 1.1% 0.98%
Families 1.0% 0.93%
Median Household Income   2.27%
Per Capita Income   2.99%

Watertown, MA - Peer Comparisons by Rank and Percentile

The table below compares Watertown to the other 246 incorporated cities, towns and CDPs in Massachusetts by rank and percentile using July 1, 2019 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 # 41 84th
Population Density # 11 96th
Diversity Index # 51 80th
Median Household Income # 60 76th
Per Capita Income # 38 85th

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

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