Political Districts and Boundaries in Illinois

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Publication_Date: varies
Title: Political Districts and Boundaries in Illinois
Edition: 20070726
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: ISGS GIS Database
Issue_Identification: GISDB.IL_ADMIN_Political_Districts
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Various, by feature class
Originator: Various, by feature class
Online_Linkage: <http://www.elections.state.il.us/>
Online_Linkage: <http://www.illinois.gov/government/gov_legislature.cfm>
Description:
Abstract:
This feature dataset contains data layers that show political districts and boundaries in Illinois, including political townships, state representative (house) and legislative (senate) districts, and US congressional districts. Attributes include district number and name of the corresponding representative or senator. The time periods correspond to the three most recent instances of the US Census (1980, 1990, 2000). The data are current as of 2007, except political townships, which show the data as of 1985.

Please refer to the metadata for individual feature classes for additional and dataset-specific information.

"Now in its 93rd session, the Illinois General Assembly, composed of a 59-member Senate and a 118-member House of Representatives, is responsible for enacting, amending, or repealing laws, passing resolutions, adopting appropriation bills and conducting inquiries on proposed legislation. It also acts on amendments to the United States Constitution submitted by Congress, proposes amendments to the Illinois Constitution, and takes responsibility for impeachment and conviction of executive and judicial officeholders in the state." (Illinois Government web site, 2004, <http://www.illinois.gov/government/gov_legislature.cfm>)

The terminology applied to Illinois governmental bodies is sometimes used inconsistantly and can be confusing. The Illinois General Assembly is composed of the House of Representatives and the Senate. The General Assembly is sometimes referred to as the Illinois Legislature or the Illinois Congress. The state is divided into representative districts (House) and legislative districts (Senate). Each legislative district is composed of two representative districts, following this pattern: representative districts 1 & 2 = legislative district 1 representative districts 3 & 4 = legislative district 2 representative districts 5 & 6 = legislative district 3 etc.

The term "congressional district" usually refers to the federal body rather than a state body.

There are several web sites that can be used in conjunction with this feature dataset. Two are listed here and are included in the Online Links section.

Illinois State Board of Elections Voting Information, including district boundary descriptions and district search functions, <http://www.elections.state.il.us/>

Illinois Government Legislative Information, <http://www.illinois.gov/government/gov_legislature.cfm>

Purpose:
These data are appropriate for use in regional thematic analysis. The data are not appropriate as a geodetic, legal or engineering base. The data set was not and is not intended as a substitute for surveyed locations, such as can be determined by a registered Public Land Surveyor. Although useful in a GIS as a thematic, reference, or base layer for maps, the data set has no legal basis in the definition of boundaries or property lines.
Supplemental_Information:
This is edition 20070726. The previous edition was 20040721. Recent updates: senators and representatives were updated as of 2006 and 2007.

Prior to edition 20040330 was 1.0. At that transition the data were converted from the coverage storage model to the SDE storage model.

Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -91.513518
East_Bounding_Coordinate: -87.022340
North_Bounding_Coordinate: 42.510709
South_Bounding_Coordinate: 36.968510
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: political
Theme_Keyword: district
Theme_Keyword: politics
Theme_Keyword: congress
Theme_Keyword: house of representatives
Theme_Keyword: house
Theme_Keyword: senate
Theme_Keyword: delegate
Theme_Keyword: legislature
Theme_Keyword: legislative
Theme_Keyword: legislator
Theme_Keyword: political boundary
Theme_Keyword: government
Theme_Keyword: representative
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Illinois
Access_Constraints: None.
Use_Constraints:
Reproduction or redistribution of copyrighted digital data sets or products derived therefrom outside of licensee's organization or entity is expressly forbidden. The only exception is redistribution to consultants working for the licensee, and then only for purposes, related to work for the licensee. Such consultants may not further reproduce or redistribute these data sets. None of these data shall be electronically duplicated on magnetic or optical media for use by others, in whole or in part, without the permission of DNR.

Any hardcopies utilizing DNR data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent DNR data sets, nor to imply that changes they made were approved by DNR.

Point_of_Contact:
Contact_Information:
Contact_Instructions:
Please refer to the contact information in the Distribution Section.
Contact_Organization_Primary:
Contact_Organization:
Illinois State Geological Survey, Geospatial Analysis and Modeling Section
Native_Data_Set_Environment:
ArcSDE 8.2 on Oracle 9.2.0.1.0, ArcGIS 8.3 on Windows Professional 2000

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: See metadata for individual feature classes.
Logical_Consistency_Report: See metadata for individual feature classes.
Completeness_Report: See metadata for individual feature classes.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: See metadata for individual feature classes.
Lineage:
Process_Step:
Process_Description:
ArcSDE feature dataset created to contain feature classes from source coverages.

Feature dataset metadata created.

Time_of_Day: 09485600
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Process_Date: 20040330
Process_Step:
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Process_Description:
Feature classes relating to the 2000 census were added. Please see metadata for individual feature classes.

Metadata updated.

Process_Date: 20040721

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 19
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 59
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 118
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 118
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 118
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 1691
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 59
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 59

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.000001
Longitude_Resolution: 0.000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:

Entity_and_Attribute_Information:

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Illinois State Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: 615 East Peabody Drive
City: Champaign
State_or_Province: Illinois
Postal_Code: 61820
Country: USA
Contact_Voice_Telephone: 217-333-4747
Contact_TDD/TTY_Telephone: 217-785-0211
Contact_Electronic_Mail_Address: isgs@isgs.uiuc.edu
Hours_of_Service: 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time
Distribution_Liability:
The Illinois Department of Natural Resources (DNR) provides these geographic data "as is." DNR makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. DNR further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of DNR, no warranty, expressed or implied, is made by DNR regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.

In no event shall the DNR have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by DNR.

Technical_Prerequisites:
The data are intended for use with GIS software. The ISGS uses ESRI ArcGIS software, however, the ESRI shapefile and coverage formats can be imported into many different GIS software packages.

It is expected that customers who order this data have the technical expertise to use GIS software. The ISGS does not provide software support of any kind.


Metadata_Reference_Information:
Metadata_Date: 20040721
Metadata_Contact:
Contact_Information:
Contact_Instructions: Please refer to the Distribution Information Section.
Contact_Organization_Primary:
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Access_Constraints: None.
Metadata_Use_Constraints: None.
Metadata_Extensions:
Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>
Profile_Name: ESRI Metadata Profile

Generated by mp version 2.8.11 on Tue Jul 31 15:08:26 2007