Massachusetts municipal boundaries, simplified coast

Name: Massachusetts municipal boundaries, simplified coast
Creator: MassGIS Bureau of Geographic Information
License: https://www.mass.gov/info-details/about-massgis

One feature per city or town, with a simplified coastline supplied by MassGIS for faster display. Islands are included in multipart features. Use the detailed source for local boundary work.

MassGIS (Bureau of Geographic Information), Commonwealth of Massachusetts EOTSS

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About this dataset

One feature per city or town, with a simplified coastline supplied by MassGIS for faster display. Islands are included in multipart features. Use the detailed source for local boundary work.
Snapshot prepared on 2026-10-10. The source observation dates may be earlier. This is not a live service.
All 351 records from the selected source layer are retained. Count and object IDs were checked. Original source fields are retained; a display name is copied where available.
Coordinates were transformed by the source service to WGS84. Altitude and measure values are omitted. No local simplification was applied.
Source metadata: https://drawonamap.com/library/sources/government-content-2026-10/gov-2ebb1cf4d34d/metadata.json
Credit MassGIS (Bureau of Geographic Information), Commonwealth of Massachusetts EOTSS.
1 source geometries had crossing rings. Shapely make_valid split those rings without a material change to polygon area. All records and fields were retained. Repair details are included with the source metadata.