January 2023

Boundaries of the eight Governor's Council districts for the Commonwealth of Massachusetts, as signed into law on November 22, 2021, with Chapter 92 of the Acts of 2021. These boundaries began to be used with the fall 2022 elections and are based on demographic data from the 2020 U.S. Census.Member names based on the results of the November 2022 election were populated in January 2023.See full metadataMap service also available.

This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Congressional districts are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states based on census population counts, each state is responsible for establishing congressional districts for the purpose of electing representatives. Each congressional district is to be as equal in population to all other congressional districts in a state as practicable. The 118th Congress is seated from January 2023 through December 2024. In Connecticut, Illinois, and New Hampshire, the Redistricting Data Program (RDP) participant did not define the CDs to cover all of the state or state equivalent area. In these areas with no CDs defined, the code "ZZ" has been assigned, which is treated as a single CD for purposes of data presentation. The TIGER/Line shapefiles for the District of Columbia, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands) each contain a single record for the non-voting delegate district in these areas. The boundaries of all other congressional districts reflect information provided to the Census Bureau by the states by August 31, 2022.

January 2025

The 2023 cartographic boundary KMLs are simplified representations of selected geographic areas from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies are available as nation-based files while others are available only as state-based files. Congressional districts are the 435 areas from which people are elected to the U.S. House of Representatives. After the apportionment of congressional seats among the states based on census population counts, each state is responsible for establishing congressional districts for the purpose of electing representatives. Each congressional district is to be as equal in population to all other congressional districts in a state as practicable. The 118th Congress is seated from January 2023 through December 2024. In Connecticut, Illinois, and New Hampshire, the Redistricting Data Program (RDP) participant did not define the CDs to cover all of the state or state equivalent area. In these areas with no CDs defined, the code "ZZ" has been assigned, which is treated as a single CD for purposes of data presentation. The cartographic boundary files for the District of Columbia, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands) each contain a single record for the non-voting delegate district in these areas. The generalzied boundaries of all other congressional districts are based on information provided to the Census Bureau by the states by August 31, 2022.

This map service contains both polygon and linear features for the boundaries of the Massachusetts State House of Representatives districts, which were signed into law on November 4, 2021, with Chapter 83 of the Acts of 2021. These boundaries began to be used with the fall 2022 elections and are based on demographic data from the 2020 U.S. Census.Member names from the results of the November 2022 election were populated in January 2023 and updated in February 2024. An update to the attributes due to a special election in the 6th Worcester District was added in June 2024.Member names from the results of the November 2024 election were populated in January 2025.See full metadataFeature service also available.

Massachusetts State House of Representatives 2021 District Boundaries (linear features), as signed into law on November 4, 2021, with Chapter 83 of the Acts of 2021. These boundaries will be used beginning with the fall 2022 elections. These districts were based on demographic data from the 2020 U.S. Census.Member names from the results of the November 2022 election were populated in January 2023 and updated in February 2024. An update to the attributes due to a special election in the 6th Worcester District was added in June 2024.Member names from the results of the November 2024 election were populated in January 2025.See full metadataMap service also available.

The Community of Interest Map Collection Project aims to collect COI maps submitted to legislative and congressional redistricting bodies and organizations during the 2021 redistricting cycle.

Application from MassGIS displaying Legislative Districts within the Commonwealth of Massachusetts (Congress and state Senate and House of Representatives). The data displayed in this map include:U.S. Congressional Districts (118th)Massachusetts Senate Legislative Districts (2021) Massachusetts House Legislative Districts (2021)

The Massachusetts House Legislative Districts (2012) datalayer reflects the state House of Representatives district boundaries as defined by Massachusetts General Laws, Chapter 57: Section 4. These 160 districts were those used in the elections from 2012 and prior to 2022, when they were superseded by the 2021 House Districts.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.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. State Legislative Districts (SLDs) are the areas from which members are elected to State legislatures. The SLDs embody the upper (senate) and lower (house) chambers of the state legislature. Nebraska has a unicameral legislature and the District of Columbia has a single council, both of which the Census Bureau treats as upper-chamber legislative areas for the purpose of data presentation; there are no data by SLDL for either Nebraska or the District of Columbia. A unique three-character census code, identified by State participants, is assigned to each SLD within a state. In Connecticut, Illinois, Louisiana, Maine, Maryland, Massachusetts, Michigan, Ohio, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDs to cover all of the state or state equivalent area. In these areas with no SLDs defined, the code "ZZZ" has been assigned, which is treated as a single SLD for purposes of data presentation. The most recent state legislative district boundaries collected by the Census Bureau are for the 2018 election year, and were provided by state-level participants through the RDP. The Census Bureau holds the 2018 state legislative districts until the postcensal state legislative plans for the 2022 state legislatures are collected.

This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding adn Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Voting district is the generic name for geographic entities such as precincts, wards, and election districts established by State governments for the purpose of conducting elections. States participating in the 2020 redistricting program as part of Public Law 94-171 (1975) provided the Census Bureau with boundaries, codes, and names for their VTDs. Voting districts do not exist for all states since some states did not participate in the program or chose not to submit boundaries for some of, or their entire, state. Each VTD is identified by a 1- to 6-character alphanumeric census code that is unique within county. The code "ZZZZZZ" identifies a portion of the county for which no VTDs were identified.

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. State Legislative Districts (SLDs) are the areas from which members are elected to State legislatures. The SLDs embody the upper (senate) and lower (house) chambers of the state legislature. Nebraska has a unicameral legislature and the District of Columbia has a single council, both of which the Census Bureau treats as upper-chamber legislative areas for the purpose of data presentation; there are no data by SLDL for either Nebraska or the District of Columbia. A unique three-character census code, identified by State participants, is assigned to each SLD within a state. In Connecticut, Illinois, Louisiana, Maine, Maryland, Massachusetts, Michigan, Ohio, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDs to cover all of the state or state equivalent area. In these areas with no SLDs defined, the code "ZZZ" has been assigned, which is treated as a single SLD for purposes of data presentation. The most recent state legislative district boundaries collected by the Census Bureau are for the 2018 election year, and were provided by state-level participants through the RDP. The Census Bureau holds the 2018 state legislative districts until the postcensal state legislative plans for the 2022 state legislatures are collected.

This map service contains both polygon and linear features for the boundaries of the Massachusetts State Senate districts, which were signed into law on November 4, 2021, with Chapter 82 of the Acts of 2021. These boundaries began to be used with the fall 2022 elections and are based on demographic data from the 2020 U.S. Census.Member names with the results of the November 2022 election were entered in January 2023 and updated in February 2024.Member names from the results of the November 2024 election were populated in January 2025.See full metadataFeature service also available.

This map service contains boundaries for the following types of public school districts:Local School - administered by a city or town school committee.Regional Academic - administered by a regional school committee.Regional Vocational Technical - administered by a regional vocational school committee.Independent Vocational and County Agricultural - administered by a board of trustees.Independent Public, including Commonwealth Charter Schools and Horace Mann Charter SchoolsDistrict information as of December 2, 2014, was obtained from the Massachusetts Department of Elementary and Secondary Education (ESE).For full metadata see https://www.mass.gov/info-details/massgis-data-public-school-districtsMap service also available.

View and Download PDF Maps from Map Library School Districts and Buffer Zones (11 X 17)School Districts and Buffer Zones (8.5 X 11)Individual School MapBaker School District and Buffer Zones (22 X 34)Baker School District and Buffer Zones (8.5X 11)Devotion School District and Buffer Zones (22 X 34)Devotion School District and Buffer Zones (8.5 X 11)Driscoll School District and Buffer Zones (22 X 34)Driscoll School District and Buffer Zones (8.5 X 11)Health School District and Buffer Zones (22 X 34)Health School District and Buffer Zones (8.5 X 11)Lawrence School District and Buffer Zones (22 X 34)Lawrence School District and Buffer Zones (8.5 X 11)Lincoln School District and Buffer Zones (22 X 34)Lincoln School District and Buffer Zones (8.5 X 11)Pierce School District and Buffer Zones (22 X 34)Pierce School District and Buffer Zones (8.5 X 11)Runkle School District and Buffer Zones (22 X 34)Runkle School District and Buffer Zones (8.5 X 11)SCHOOL DISTRICTS: This data layer is created by Brookline GIS based upon the street centerline layer developed by Boston Edison and the hard copy school district map provided by the school department.SCHOOL BUFFER ZONES: This data layer is created by Brookline GIS based upon the parcel boundaries and the address list from the school department. Updated on 06/14/2001, 08/27/2002 and 06/16/2004 according to changes made by the School Committee

The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database (MTDB). The MTDB represents a seamless national file with no overlaps or gaps between parts, however, each TIGER/Line shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. State Legislative Districts (SLDs) are the areas from which members are elected to State legislatures. The SLDs embody the upper (senate) and lower (house) chambers of the state legislature. Nebraska has a unicameral legislature and the District of Columbia has a single council, both of which the Census Bureau treats as upper-chamber legislative areas for the purpose of data presentation; there are no data by SLDL for either Nebraska or the District of Columbia. A unique three-character census code, identified by State participants, is assigned to each SLD within a state. In Connecticut, Illinois, Louisiana, Maine, Maryland, Massachusetts, Michigan, Ohio, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDs to cover all of the state or state equivalent area. In these areas with no SLDs defined, the code "ZZZ" has been assigned, which is treated as a single SLD for purposes of data presentation. The boundaries of the 2014 State legislative districts were provided by state-level participants through the RDP and reflect the districts used to elect members in or prior to the November 2014 election.

This polygon data layer contains the six Massachusetts Department of Transportation (MassDOT) Highway Districts in the Commonwealth of Massachusetts. The districts supervise all construction within its jurisdiction; performs on-site engineering; implements maintenance and preventative maintenance programs; generates proposals for maintenance and construction work; and provides engineering support to cities and towns.ProductionThe bounds of the MassDOT Highway Districts were digitized from the MassGIS survey-level town boundaries. In addition to the polygon layer, there is an arc layer following the same line work as the polygon included in the downloadable shape file.MetadataStatusThis data is current as of September 2013.

Massachusetts State Senate district boundaries based on 2010 U.S. Census data. These 40 districts were those used in the elections from 2012 and prior to 2022, when they were superseded by the 2021 Senate Districts.

Effective January 2024.More information: Visit the Geographic Information System (GIS) webpage for access to additional City maps.Informing Worcester is the City of Worcester's open data portal where interested parties can obtain public information at no cost.