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ZIP Code Database - Facts & Stats

Data Last Updated: June 1, 2023

ZIP Codes for City of Williamstown, MA

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Area Code(s):413
Timezone(s):Eastern (GMT -05:00)
City Population:4,325 (More Details)
CBSA:Pittsfield, MA
Congressional District(s):01
Land Area:927 square miles (county)
Water Area:20 square miles (county)

1 ZIP Code

Williamstown, MA ZIP Code Boundaries

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Williamstown, MA Covers 1 ZIP Code

ZIP CodeTypePopulation% of PopulationAliases
01267Standard7,989100.00%WILLIAMSTN, WMSTOWN

Williamstown, MA Demographic Information *

Total population**4,325
Male population2,042
Female population2,283
Median age (years)22.3
White Population3,592
Black Population189
Indian Population3
Asian Population323
Hawaiian Population4
Hispanic Population231
Median age (Male)22.1
Median age (Female)22.6
Total households1,246
Family households (families)633
Average household size1.98
Average family size2.64
Total housing units1,550
* Demographic data is based on 2010 Census for the City of WILLIAMSTOWN.
** City and ZIP Code Population will not be equal due to differences in their geographies.


  1. U.S. Postal Service [Last Updated: 2/1/2023],
  2. Internal Data Creation [Last Updated: 2/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],