Data Sales and Downloads
August 19, 2013
The City of Cambridge sells digital Geographic Information System (GIS) data of the City upon request. Below is information on how to obtain the data, pricing, and file formats available.
NEW! Cambridge GIS Data Layers Available on GitHub
We are have put most of our GIS layers on the Open Source Web site GitHub. Developers can consume the data for Web maps using either Open Source map clients or proprietary GIS software. The layers are in GeoJSON format, and the layers have been projected to WGS84. They can be individually downloaded or viewed within the MapBox feature on the site. Please note that some of the larger layers are not available on GitHub. We are working on that with TopoJSON and expect to have those larger files available before the end of August 2013. For more info on the GeoJSON file format, visit: http://www/geojson.org
Visit http://cambridgegis.github.io/gisdata.html to check out the data.
City of Cambridge GIS Data Sales
A complete data on CD can be picked up at our office at 831 Massachusetts Avenue, or can be mailed to the requester. Each CD costs $20. Requests for infrastructure (water distribution, sanitary sewer, and stormwater) will be reviewed by the appropriate engineering staff. The fee will be waived for students (see note below), organizations doing a project for the City, non-profits, and full time residents of Cambridge.
Send request to CambridgeGIS_at_cambridgema.gov or call 617-349-4140 with your contact information.
A note to students: GIS data is free for students if you can supply a staff contact from your school. If your school is in the Boston area, most likely the data is already at your school. Please contact us to verify.
Standard Cambridge Data CD Includes:
Base map layers (roads, buildings, hydro, and rail line)
Political boundaries (city boundary, zip codes, neighborhoods)
Tax Parcels (parcels, taxing districts, text, and limited attributes)
Planning layers (zoning, open space, historical districts, census data)
Environmental layers (wetlands, watershed data)
Municipal layers (schools, points of interest, election districts)
Topography (1 foot contours, spot elevations, DTM)
Transportation layers (centerlines, intersections, major roads)
Ortho CD Includes:
Digital orthophotos are a digitally enhanced mosaic of the aerial photographs used for creating the planimetric and topographic landbase layers. These images are available in a citywide seamless MrSID format.
Planimetric and Topographic Information:
Planimetric and topographic landbase data was prepared through the use of photogrammetric methods from aerial photography dated April 14, 2010. This information meets ASPRS Standards for 1”=40’ Class 1 Map accuracy.
All data has been projected to the Stateplane grid coordinate system, Zone 4151, Datum NAD83 and Units feet.
Coordinate Datum: NAD-83 Massachusetts Coordinate System, Mainland Zone
Complete data set in ESRI File Geodatabase (version 10.0). Data CD also includes ESRI Shapefile format except for annotation layers. Images are available in MrSID format.
COMING SOON. GIS DATA DOWNLOAD SITE!
We will soon have a data download site on these pages. Data will be available in a number of formats. Keep checking back for our new GIS Web page in development!