2025 Cartographic Boundary File (KML), State Legislative District (SLD) Upper Chamber for Mississippi, 1:500,000
The 2025 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.
State Legislative Districts (SLDs) are the areas from which members are elected to state legislatures. The SLDs embody the upper (senate - SLDU) and lower (house - SLDL) 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. A unique three-character census code, identified by state participants, is assigned to each SLDU within a state. States that had SLDU updates between the previous and current session include Georgia, Minnesota, Montana, North Carolina, North Dakota, Ohio, Washington, and Wisconsin. In Connecticut, Illinois, Louisiana, New Hampshire, Wisconsin, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDUs to cover the entirety of the state or state equivalent area. In the areas with no SLDUs defined, the code "ZZZ" has been assigned, which is treated as a single SLDU for purposes of data presentation.
There are no SLDU cartographic boundary file for the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). The state legislative district boundaries reflect information provided to the Census Bureau by the states by May 31, 2024.
Note: Michigan was required by court order to redraw their state senate districts. However, these new SLDUs were not drawn by May 31, 2024, and will not be used until the next SLDU elections in November 2026. The next Census Bureau collection of congressional and state legislative boundaries is scheduled for early 2026.
Resources
4 resources available
-
cb_2025_28_sldu_500k.zip
ZIP -
cb_2025_28_sldu_500k.kml.ea.iso.xml
XML -
2025_file_name_def.pdf
PDF -
description.pdf
PDF
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "U.S. Department of Commerce, U.S. Census Bureau, Geography Division",
"@type": "vcard:Contact",
"hasEmail": "mailto:geo.geography@census.gov"
}
|
| describedByType | application/octet-steam |
| description | The 2025 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. State Legislative Districts (SLDs) are the areas from which members are elected to state legislatures. The SLDs embody the upper (senate - SLDU) and lower (house - SLDL) 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. A unique three-character census code, identified by state participants, is assigned to each SLDU within a state. States that had SLDU updates between the previous and current session include Georgia, Minnesota, Montana, North Carolina, North Dakota, Ohio, Washington, and Wisconsin. In Connecticut, Illinois, Louisiana, New Hampshire, Wisconsin, and Puerto Rico, the Redistricting Data Program (RDP) participant did not define the SLDUs to cover the entirety of the state or state equivalent area. In the areas with no SLDUs defined, the code "ZZZ" has been assigned, which is treated as a single SLDU for purposes of data presentation. There are no SLDU cartographic boundary file for the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). The state legislative district boundaries reflect information provided to the Census Bureau by the states by May 31, 2024. Note: Michigan was required by court order to redraw their state senate districts. However, these new SLDUs were not drawn by May 31, 2024, and will not be used until the next SLDU elections in November 2026. The next Census Bureau collection of congressional and state legislative boundaries is scheduled for early 2026. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "cb_2025_28_sldu_500k.zip",
"format": "ZIP",
"mediaType": "application/zip",
"description": "The cartographic boundary files are simplified representations of selected geographic areas specifically designed for small scale thematic mapping. These files contain simplified extracts of selected geographic areas from the U.S. Census Bureau's Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) database.",
"downloadURL": "https://www2.census.gov/geo/tiger/GENZ2025/kml/cb_2025_28_sldu_500k.zip",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "cb_2025_28_sldu_500k.kml.ea.iso.xml",
"format": "XML",
"mediaType": "application/xml",
"description": "Entity and attribute file",
"downloadURL": "https://meta.geo.census.gov/data/existing/decennial/GEO/CPMB/boundary/2025/19110/kml/cb_2025_28_sldu_500k.kml.ea.iso.xml",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "2025_file_name_def.pdf",
"format": "PDF",
"mediaType": "application/pdf",
"description": "The file naming convention for the cartographic boundary files.",
"downloadURL": "https://www2.census.gov/geo/tiger/GENZ2025/2025_file_name_def.pdf",
"describedByType": "application/octet-stream"
},
{
"@type": "dcat:Distribution",
"title": "description.pdf",
"format": "PDF",
"mediaType": "application/pdf",
"description": "General description of the cartographic boundary files and their appropriate use.",
"downloadURL": "https://www2.census.gov/geo/tiger/GENZ2025/description.pdf",
"describedByType": "application/octet-stream"
}
]
|
| identifier | https://meta.geo.census.gov/data/existing/decennial/GEO/CPMB/boundary/2025/19115/kml/cb_2025_28_sldu_500k.kml.iso.xml |
| issued | 2026-05-01T00:00:00.000+00:00 |
| keyword |
[
"2025",
"KML",
"Cartographic Boundary",
"Generalized",
"State Legislative District",
"Upper Chamber",
"Mississippi",
"MS"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2026-05-01T00:00:00.000+00:00 |
| publisher |
{
"name": "U.S. Department of Commerce, U.S. Census Bureau, Geography Division",
"@type": "org:Organization"
}
|
| rights | otherRestrictions |
| spatial | -88.097888,30.175372,-91.655009,34.996052 |
| title | 2025 Cartographic Boundary File (KML), State Legislative District (SLD) Upper Chamber for Mississippi, 1:500,000 |
