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boundaries, legislature, census, districts, 2013 redistricting, boundaries
These data show the Maine Senate districts as approved by the State Legislature in 2013 (2013 PL 270), based on data from the Maine towns boundary dataset (METWP24) and the US Census 2010 block data. Both are 1:24,000 scale data sources. These districts become effective December 3, 2014 (127th Legislature).
The Maine Constitution requires the Legislature to reapportion legislative districts every ten years, using the most recent census data. The State of Maine has typically done this the 3rd year following the Census. This dataset indicates the result of the 2013 reapportionment for the Senate.These data are derived primarily from the Maine towns boundary dataset to indicate the Senate districts starting with the 127th Legislature. Since many districts are defined by census tracts and blocks, where these boundaries split up towns, the lines from the census data were used to do so. These districts become public law on October 9, 2013, but the legislation specifically delays the implementation of these districts until the 127th Legislature (Dec 3 2014).These data are based on 1:24,000 base data and will inherit the resulting spatial inaccuracies of the source data. These data are intended for mapping at scales suitable for 1:24,000 scale and are not intended to be a ground survey of precise boundaries. Typically boundaries follow town lines, or roads or water features. In some cases these lines may have have slight variations from the actual features which delineate the legislative district.
Maine Office of GIS
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002 and coordinated by MEGIS
Extent
| West | -71.166757 | East | -66.781750 |
| North | 47.460074 | South | 42.909625 |
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
Monday through Friday
Maine Office of GIS
Monday through Friday
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002 and coordinated by MEGIS
Monday through Friday
The district for the Senate
MEGIS
Internal feature number.
Esri
Feature geometry.
Esri
The district for the senate
MEGIS
Monday through Friday
The Maine Constitution requires the Legislature to reapportion legislative districts every ten years, using the most recent census data. The State of Maine has typically done this the 3rd year following the Census. This dataset indicates the result of the 2013 reapportionment for the Senate.These data are derived primarily from the Maine towns boundary dataset to indicate the Senate districts starting with the 127th Legislature. Since many districts are defined by census tracts and blocks, where these boundaries split up towns, the lines from the census data were used to do so. These districts become public law on October 9, 2013, but the legislation specifically delays the implementation of these districts until the 127th Legislature (Dec 3 2014).These data are based on 1:24,000 base data and will inherit the resulting spatial inaccuracies of the source data. These data are intended for mapping at scales suitable for 1:24,000 scale and are not intended to be a ground survey of precise boundaries. Typically boundaries follow town lines, or roads or water features. In some cases these lines may have have slight variations from the actual features which delineate the legislative district.
These data show the Maine Senate districts as approved by the State Legislature in 2013 (2013 PL 270), based on data from the Maine towns boundary dataset (METWP24) and the US Census 2010 block data. Both are 1:24,000 scale data sources. These districts become effective December 3, 2014 (127th Legislature).
The legislation becomes effective 10/9/2013
None
Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002 and coordinated by MEGIS
Monday through Friday
Maine Office of GIS
The horizontal accuracy of these data are within the acceptable tolerances for 1:24,000 scale mapping.
Completeness was evaluated by querying for NULL attributes and ensuring all polygons were attributed. Visual inspections also were conducted.
These data derive primarily from the METWP24 boundary data for Maine. Where the legislation indicates that towns or entire counties are part of a district, METWP was simply attributed for these districts. Where the legislation provides census tracts or blocks or subunits as the district description, the 2010 census blocks were used. First the legislation, which is a long string of towns and census units, was parsed out into a text file with a standard format, such as this: SD24 COUNTY Cumberland TOWN Brunswick; Freeport; Harpswell; North Yarmouth; Pownal A Python script was written which then read this datafile and selected out the corresponding towns or census units and computed their district. Both datasets were then dissolved to the district attribute and the two resulting datasets were manually merged to preserve the town boundaries from METWP24 while splitting towns along the census lines. This methodology was repeated for each of the three datasets: Senate, Senate, and County Commissioners districts.
Metadata imported.
Dataset copied.
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These data are provided under the MEGIS data license.
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