Williamstown, MA Profile: Facts, Map & Data


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Williamstown, Massachusetts - Basic Facts

The Williamstown Census Designated Place had a population of 4,148 as of July 1, 2016. Williamstown ranks in the upper quartile for 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 Williamstown is located at latitude 42.7089 and longitude -73.2014 in Berkshire County. The formal boundaries for the Williamstown Census Designated Place (see map below) encompass a land area of 3.39 sq. miles and a water area of 0.03 sq. miles. Berkshire County is in the Eastern time zone (GMT -5). The elevation is 682 feet.

The Williamstown Census Designated Place (GNIS ID: 2378046) 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 Williamstown Census Designated Place is located within Town of Williamstown, a minor civil division (MCD) of Berkshire County.

Beneath the boundary map are tables with Williamstown 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 Williamstown: Willimston.

Neighborhood Data

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Williamstown Census Designated Place, MA Boundary Map

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


Total Population 4,148
Population in Households 2,284
Population in Familes 1,556
Population in Group Qrtrs 1,864
Population Density1 1,222
Diversity Index2 44


Total Households 1,180
Average Household Size 1.94
Family Households 610
Average Family Size 3


Total Housing Units 1,592 (100%)
Owner Occupied HU 741 (46.5%)
Renter Occupied HU 438 (27.5%)
Vacant Housing Units 412 (25.9%)
Median Home Value $370,000
Average Home Value $422,200


Median Household Income $64,741
Average Household Income $103,937
Per Capita Income $38,224
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.67% -0.22%
Households -0.87% -0.34%
Families -0.59% -0.43%
Median Household Income   3.33%
Per Capita Income   1.35%
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.

Williamstown, MA - Peer Comparisons by Rank and Percentile

The table below compares Williamstown 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 # 133 46th
Population Density1 # 141 43rd
Diversity Index2 # 45 82nd
Median Household Income # 141 43rd
Per Capita Income # 116 53rd

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

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