| Virginia House Districts of Loudoun County, VA (2011) | |
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Data format: SDE Feature Class File or table name: GISDBB.GISBROW.VIRGINIA_HOUSE_2011_POLY Coordinate system: Lambert Conformal Conic Theme keywords: election, district, Virginia, redistricting, House, society, boundaries |
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Abstract:
This layer represents the Virginia House districts that are within Loudoun County. Virginia House districts represent the area that each elected member of the Virginia House represents. The House districts are revised and adopted by the Commonwealth of Virginia each decade. The Commonwealth of Virginia redraws its House districts based of the results of the most recent decennial census, in this case the 2010 Census.
This House district plan, referred to as HB 5005, was signed by the Governor of Virginia on April 29, 2011 & approved by the U.S. Department of Justice on June 17, 2011. The 2011 election districts are effective immediately upon adoption.
Any maps showing the Virginia House districts produced prior to the Commonwealth of Virginia's Department of Justice approval should include the following statement: "Plan signed by the Virginia governor on April 29, 2011 & approved by the U.S. Department of Justice on June 17, 2011. The 2011 election districts are effective immediately." |
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Metadata elements shown with blue text are defined in the Federal Geographic Data Committee's (FGDC) Content Standard for Digital Geospatial Metadata (CSDGM). Elements shown with green text are defined in the ESRI Profile of the CSDGM. Elements shown with a green asterisk (*) will be automatically updated by ArcCatalog. ArcCatalog adds hints indicating which FGDC elements are mandatory; these are shown with gray text.
This layer represents the Virginia House districts that are within Loudoun County. Virginia House districts represent the area that each elected member of the Virginia House represents. The House districts are revised and adopted by the Commonwealth of Virginia each decade. The Commonwealth of Virginia redraws its House districts based of the results of the most recent decennial census, in this case the 2010 Census. This House district plan, referred to as HB 5005, was signed by the Governor of Virginia on April 29, 2011 & approved by the U.S. Department of Justice on June 17, 2011. The 2011 election districts are effective immediately upon adoption. Any maps showing the Virginia House districts produced prior to the Commonwealth of Virginia's Department of Justice approval should include the following statement: "Plan signed by the Virginia governor on April 29, 2011 & approved by the U.S. Department of Justice on June 17, 2011. The 2011 election districts are effective immediately."
This data was produced in compliance with the constitution of the Commonwealth of Virginia, which mandates the Commonwealth to redraw its House election districts based of the results of the most recent decennial census, in this case 2010. Redrawing the boundaries ensures equal representation of the population. Each House election district is required to have a similar population count. There are 100 House districts in the Commonwealth of Virginia and each House district is within +/- 1% of the equalized decennial census population, which is calculated using the Commonwealth of Virginia's decennial Census population divided by the number of districts.
Data are stored in the corporate ArcSDE Geodatabase as a polygon feature class. The coordinate system is Virginia State Plane (North), Zone 4501, datum NAD83 HARN (vertical datum, if applicable, NAVD88), US Survey foot units.
publication date
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user. These data were generated for use by Loudoun County and are available to the public. These data are intended for use at 1:2400 scale or smaller. Acknowledgement of Loudoun County would be appreciated in products derived from this data.
803 Sycolin Rd, Suite 104
MS 61
Retention of attribute accuracy throughout the personal geodatabase or shapefile to ArcSDE geodatabase feature class coversion process was ensured by a manual or automatic QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have, on a record by record basis, identical attribution when comparing all concatenated fields to all the user-defined attribution.
Topologically clean
Features may have been eliminated or generalized due to scale and intended use. To assist Loudoun County, Virginia in the maintenance of the data, please provide any information concerning discovered errors, omissions, or other discrepancies found in the data.
Retention of coordinate accuracy throughout the personal geodatabase or shapefile to ArcSDE geodatabase feature class conversion process was ensured by a manual or automatic QA/QC programmatic check. To meet satisfactory QA/QC requirements the input coverage and output feature class must have the same record total, and on a record by record basis, area, perimeter, and length differential of less than +/- 0.5%.
Digital text file of Virginia House District designation on Census Block level
Provided the foundation upon which census blocks were drawn. The 2010 Census blocks were the basis for devising the election district boundaries.
Demographic data source for population, housing units, and households for House Districts
Census block shapefiles were downloaded from the U.S. Census Bureau. Overlaid the Census Bureau block shapefile with Loudoun County Government's detailed GIS layers to determine the actual location of the physical features, natural features, and governmental units such as town boundaries that the census blocks are designated to follow. Digitized block liines using Loudoun County Government's detailed GIS layers. Created the House district GIS layer by joining the Virginia Division of Legislative Affair's House district block assignment file to Loudoun's spatially enhanced census block layer and then spatially dissolving the census block layer.
Internal feature number.
ESRI
Feature geometry.
ESRI
Virginia House number
Virginia Division of Legislative Services
population of the House district
Loudoun County
housing unit count of the House district.
Loudoun County
households of the House district. Households are occupied housing units.
Loudoun County
Date feature class created or modified.
Loudoun County
Not for public distribution. Internal User ID of editor creating or modifying feature class.
Loudoun County
HO_Number: House district numbers for House districts in Loudoun County
Number Description 10 House District 10 32 House District 32 33 House District 33 34 House District 34 67 House District 67 86 House District 86 87 House District 87
1 Harrison Street S.E., 2nd floor
MS 65
Every reasonable effort has been made to assure the accuracy of these data. Loudoun County, Virginia does not assume any liability arising from the use of these data. These data are provided without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties of merchantability and fitness for a particular service. Reliance on these data is at the risk of the user.
ESRI Personal Geodatabase Feature Class
ESRI Shapefile
AutoCad Digital Exchange File
Size limit: 4.5 GB. Visit our website at: http://www.loudoun.gov/omagi, click on "Loudoun County Mapping Documents & Order Forms." The "Forms" directory will lead you to custom & standard (countywide) data order forms. Hardcopy maps may also be available; please contact the Mapping Office Public Information Counter for more information regarding all data requests.
1 Harrison Street SE, 2nd Floor
MS 65