Geographic Information System (GIS)

iconWelcome to the City of Chelsea's GIS system. The following pages provide access to a significant amount of GIS data and provide users access to the City's online GIS database. Please review our disclaimer below before proceeding. Chelsea's GIS is based on aerial photography acquired over the last several years. To this, the City has added parcels, zoning, wards, and numerous other layers.


This web page is a public resource of general information. The City of Chelsea makes no warranty, representation, or guaranty as to the content, sequence, accuracy, timeliness, or completeness of any of the information provided herein. The reader should not rely on the data provided herein for any reason. The City of Chelsea explicitly disclaims any representations and warranties including, without limitation, the implied warranties of merchantability and fitness for a particular purpose. The City of Chelsea shall assume no liability for:

Any errors, omissions, or inaccuracies in the information provided regardless of how caused; or

Any decision made or action taken or not taken by the reader in reliance upon any information or data furnished hereunder

Please be aware that the presentation of this data is best when viewed at 1024 x 768 resolution.

Contact Info

Phone: 617-466-4180

Fax: 617-466-4195


Chelsea City Hall, Room #101
500 Broadway
Chelsea, MA 02150
United States

See map: Google Maps

Key Contacts
Karl Allen

Request GIS Data

Information Technology: GIS Data