Williamstown, MA Profile: Facts & Data


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Williamstown, Massachusetts - Basic Facts

The Williamstown Census Designated Place had a population of 4,127 as of July 1, 2018. 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 42.712 and longitude -73.2037 in Berkshire County. The formal boundaries for the Williamstown Census Designated Place 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.

Alternate Unofficial Names for Williamstown: Willimston.

Jump to... (On This Page!)
  1. Williamstown 2018 Demographic Data
  2. Growth Rates for Williamstown (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 - 2018 Demographics

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Williamstown, MA Data & Demographics (As of July 1, 2018)


Total Population 4,127
Population in Households 2,306
Population in Familes 1,586
Population in Group Qrtrs 1,821
Population Density2 1,216
Diversity Index3 45


Median Household Income $79,216
Average Household Income $116,028
Per Capita Income $41,686


Total Housing Units 1,517 (100%)
Owner Occupied HU 794 (52.3%)
Renter Occupied HU 393 (25.9%)
Vacant Housing Units 330 (21.8%)
Median Home Value $447,368
Average Home Value $514,767


Total Households 1,187
Average Household Size 1.94
Family Households 616
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population -0.57% -0.09%
Households -0.59% -0.14%
Families -0.33% -0.16%
Median Household Income   3.89%
Per Capita Income   2.41%

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, 2018 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 Density # 144 42nd
Diversity Index # 46 82nd
Median Household Income # 110 56th
Per Capita Income # 115 54th

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

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Massachusetts Census Data Comparison Tool

Compare Massachusetts July 1, 2018 Data
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