Town GIS Map System

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PLEASE NOTE: June 30, 2019 was the last day to use our old GIS platform. Please use our new GIS platform and if you have any questions, please contact AJ Taccone, our GIS Specialist. 

Your clicking on the “I agree” link constitutes your acceptance of the terms and conditions in the "Disclaimer" section of the current page.  


GIS stands for Geographic Information System. Users can access geographic data that is stored in a database, and displayed on a map, or layers of a map. Users will be able to accomplish many tasks using a GIS, such as:

  • Locating properties to prepare Planning and Zoning or Conservation mailing lists
  • Reviewing aerial photos of town
  • Reviewing property information for boundaries and zoning designations
  • Checking the location of designated wetlands and flood zones
  • Reviewing Building Permits
  • Reviewing Sewer Permits . 

Getting Started

If this is your first time accessing our Town GIS, it is recommended that you navigate to the "help" link at the bottom left of the GIS viewer screen and click on "documentation. The link will open up an online PDF that explains every tool within the viewer.

Please note

This site utilizes pop-up windows to print GIS Maps and other purposes. You must have pop-up blockers turned off or some features will not function. Please enable the pop-up windows (make them available) for this site only.


The site you are linking to and the information on that site is a public resource of general information. The Town of Westport makes no warranty, representation or guaranty as to the content, sequence, accuracy, timeliness or completeness of any of the data provided on the site and the user should not rely on the data provided thereon.

The Town of Westport expressly disclaims any representations and warranties whatsoever and assumes no liability for any errors, omissions, or inaccuracies in the information provided regardless of how caused, or for any decision made or action taken or not taken by the user in reliance upon any information or data furnished on the site.


The Town of Westport recognizes the need of its Government, its citizens, and the public at large to have accurate geographic information with which to plan, design, and access property information. It is these needs which have driven the development of a Geographic Information System, (GIS), that can be made available over the internet, using any recent Internet Explorer browser.

The initial release of the web-based GIS is focused on providing a solid foundation on which to build a wealth of information. It is focused on providing functional access to accurate base map information consisting of property information, planimetric locations, topographic data, and aerial imagery. It is the goal of the town to utilize this information, along with proven computer technology, to build useful applications that will assist users in getting answers to complex geographic based questions, and to improve the way we conduct the business of government.

Developed by CAI Technologies, this website is powered by Environmental System Research Institute's (ESRI) ArcGIS Online product. ArcGIS Online provides a scalable framework for distributing GIS services and data over the Internet. It is used to publish GIS maps, data and geographic services for access by many users both inside the organization and outside on the World Wide Web.  

Download and Links

Free viewers are required for some of the attached documents.
They can be downloaded by clicking on the icons below.

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