Who publishes ZIP Codes?

Cambridge GIS, part of City of Cambridge, publishes this dataset on Cambridge Open Data.

How often is it updated?

The publisher lists the update frequency as as needed. The last update was on 09/11/2024.

How do I download it?

It is available as CSV, JSON, GeoJSON, XML. Use the links in Files and access, which open the official government source.

Checked Oct 30, 2026

City dataMaps & Geospatial

ZIP Codes

Name: ZIP Codes
Creator: City of Cambridge
Published: 2022-01-27T17:49:16.000Z

Published by Cambridge GIS · Updated 09/11/2024 · As needed

Official source Download CSV

Last updated: 09/11/2024; First published 01/27/2022
Update frequency: As needed
Formats: 4; CSV, JSON, GeoJSON
Coverage: Cambridge; City in Massachusetts

About this dataset

View full metadata https://www.cambridgema.gov/GIS/gisdatadictionary/Boundary/BOUNDARY_Zipcodes Description This Polygon layer contains the boundaries of the five United States Postal Service (USPS) ZIP code areas in the city of Cambridge. About Edit Dates This data is automatically updated on a set schedule. The Socrata edit date may not reflect the actual edit dates in the data. For more details please see the update date on the full metadata page or view the edit date within the data rows.

Files and access

Links open the official government source

CSV downloaddata.cambridgema.govCSV
JSON (SODA API)data.cambridgema.govJSON
GeoJSONdata.cambridgema.govGeoJSON
XMLdata.cambridgema.govXML

API endpoint: https://data.cambridgema.gov/resource/yntz-ub27.json

Links open outside websites we do not control.

Frequently asked questions

Who publishes ZIP Codes?: Cambridge GIS, part of City of Cambridge, publishes this dataset on Cambridge Open Data.
How often is it updated?: The publisher lists the update frequency as as needed. The last update was on 09/11/2024.
How do I download it?: It is available as CSV, JSON, GeoJSON, XML. Use the links in Files and access, which open the official government source.

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Where this catalog comes from

Data.gov CatalogU.S. General Services Administration
State and local open data portalsSocrata Discovery API
State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
Government ArcGIS Hub sitesCity and county GIS data

Catalog checked 10/21/2026

We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.

Source: Cambridge Open Data · Last updated 10/21/2026 · Listing only; the data stays with the publisher