MassGIS logo

MassGIS maintains a comprehensive, statewide database of spatial information for mapping and analysis supporting emergency response, environmental planning and management, transportation planning, economic development, and transparency in state government operations.

Visit the MassGIS website

Browse all MassGIS data layers

Other Access

The information on this page (the dataset metadata) is also available in these formats.

JSON RDF

via the DKAN API

MassGIS Data: Massachusetts House Legislative Districts

November 2018
This layer shows the most current State Representative district boundaries for Massachusetts.
Download this layer
(Shapefiles and ArcGIS 10 LYR)
Legislative District Viewer
Search by municipality, legislator, or district name.

The Massachusetts House Legislative Districts datalayer reflects the state House of Representatives district boundaries as defined by Massachusetts General Laws, Chapter 57: Section 4. These 160 districts are those used in the Fall 2012 elections and beyond, until they are redrawn based on the 2020 decennial Census.

The names of the statewide datalayers are HOUSE2012_POLY (polygons) and HOUSE2012_ARC (arcs). These replace the previous HOUSE02_ARC and HOUSE02_POLY layers.

2012 State House of Representatives Districts

Production

Staff at the Massachusetts House of Representatives developed this layer with its contractor, Caliper Corp. (Newton, MA), using Maptitude for Redistricting software. MassGIS appended the 1:100,000 coastline and state outline and added the attribute fields. Election results are obtained from the Secretary of State.

In March 2018 MassGIS made minor edits to boundaries in Boston to reflect corrected data from the City of Boston. In November 2018 MassGIS made minor edits to boundaries statewide where they were offset enough from survey-based municipal lines to result in address points being assigned to the wrong district. These boundary changes have not been incorporated into U.S. Census geography that forms the basis for this layer.

Attributes

The HOUSE2012_POLY attribute table has the following fields:

FIELD NAME WIDTH / TYPE DESCRIPTION
DIST_CODE 10 / C District code, from Redistricting Committee
REPDISTNUM 5 / I Unique number for each district
REP_DIST 40 / C Name of the district
REP_FIRST 14 / C First name of representative
REP_LAST 25 / C Last name of representative
REP_PARTY 3 / C Political party of representative
REP 40 / C Rep.'s full name and party
URL 150 / C Rep.'s Web site address

In the HOUSE2012_ARC attribute table, the field OUTLINE is coded as follows:

  • 0 = Internal district boundaries
  • 1 = State
  • 2 = Coastline

Maintenance

MassGIS maintains the layer and will make updates as needed.

Also see the current state Senate and Congress data layers.

Visit the Commonwealth's Find Your Legislators page

Items

Contributor
Modified Date
2018-11-08
Release Date
2018-11-08
Identifier
b8194710-1df0-4cb3-a305-d2c713e82aca
Spatial / Geographical Coverage Location
Massachusetts
License
Author
MassGIS
Contact Name
MassGIS
Contact Email
Public Access Level
Public
Data Quality
False
Content Type
Language
English (United States)