View Metadata
Census Block Groups (TIGER/Line), WI 2010
- Identification Information
- Spatial Reference Information
- Data Quality Information
- Distribution Information
- Spatial Representation Information
- Metadata Reference Information
Identification Information
- Citation
- Title
- Census Block Groups (TIGER/Line), WI 2010
- Originator
- U.S. Census Bureau
- Publication Date
- 2020-04-30
- Edition
- 2010
- Geospatial Data Presentation Form
- mapDigital
- Collection Title
- Statewide
- Abstract
- This data represents Block Groups from the U.S. Census Bureau for Wisconsin in 2010. [The TIGER/Line Files are shapefiles and related database files (.dbf) that 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 File is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Block Groups (BGs) are defined before tabulation block delineation and numbering, but are clusters of blocks within the same census tract that have the same first digit of their 4-digit census block number from the same decennial census. For example, Census 2000 tabulation blocks 3001, 3002, 3003,.., 3999 within Census 2000 tract 1210.02 are also within BG 3 within that census tract. Census 2000 BGs generally contained between 600 and 3,000 people, with an optimum size of 1,500 people. Most BGs were delineated by local participants in the Census Bureau's Participant Statistical Areas Program (PSAP). The Census Bureau delineated BGs only where the PSAP participant declined to delineate BGs or where the Census Bureau could not identify any local PSAP participant. A BG usually covers a contiguous area. Each census tract contains at least one BG, and BGs are uniquely numbered within census tract. Within the standard census geographic hierarchy, BGs never cross county or census tract boundaries, but may cross the boundaries of other geographic entities like county subdivisions, places, urban areas, voting districts, congressional districts, and American Indian / Alaska Native / Native Hawaiian areas. BGs have a valid code range of 0 through 9. BGs coded 0 were intended to only include water area, no land area, and they are generally in territorial seas, coastal water, and Great Lakes water areas. For Census 2000, rather than extending a census tract boundary into the Great Lakes or out to the U.S. nautical three-mile limit, the Census Bureau delineated some census tract boundaries along the shoreline or just offshore. The Census Bureau assigned a default census tract number of 0 and BG of 0 to these offshore, water-only areas not included in regularly numbered census tract areas.]
- Purpose
- This data is intended for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data. [In order for others to use the information in the Census MAF/TIGER database in a geographic information system (GIS) or for other geographic applications, the Census Bureau releases to the public extracts of the database in the form of TIGER/Line Shapefiles.]
- Supplemental Information
- This is an archived copy of the data held at UW-Madison.
- Temporal Extent
- Time Instant
- 2010-01-01T00:00:00
- Bounding Box
- West
- -92.889433
- East
- -86.249548
- North
- 47.309822
- South
- 42.49172
- ISO Topic Category
- boundaries
- Place Keyword
-
Wisconsin
- Place Keyword Thesaurus
- Theme Keyword
-
Census districts
- Theme Keyword Thesaurus
- LCSH
- Resource Constraints
- Use Limitation
- [The TIGER/Line Shapefile products are not copyrighted however TIGER/Line and Census TIGER are registered trademarks of the U.S. Census Bureau. These products are free to use in a product or publication, however acknowledgement must be given to the U.S. Census Bureau as the source.The boundary information in the TIGER/Line Shapefiles are for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes does not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.Coordinates in the TIGER/Line shapefiles have six implied decimal places, but the positional accuracy of these coordinates is not as great as the six decimal places suggest.]
- Legal Constraints
- Use Limitation
- Although this data is being distributed by the University of Wisconsin-Madison, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials.
- Status
- completed
- Maintenance and Update Frequency
- unknown
- Language
- eng
- Credit
- U.S. Census Bureau
- Point of Contact
- Contact
- U.S. Census Bureau
Spatial Reference Information
- Reference System Identifier
- Code
- 4269
- Code Space
- EPSG
- Version
- 9.7
Data Quality Information
- Lineage
- Process Step
- Description
- Process Description: Provided access to archived data at UW-Madison.
- Process Date
- 2020-04-30T00:00:00
Distribution Information
- Format Name
- Shapefile
- Format Version
- 1.0
- Distributor
- University of Wisconsin-Madison
- Distributor
- U.S. Census Bureau
- Online Access
- https://gisdata.wisc.edu/public/WI_CensusTL_BlockGroups_2010.zip
- Protocol
- WWW:DOWNLOAD-1.0-http--download
- Name
- GeoData@Wisconsin
- Function
- download
Spatial Representation Information
- Vector
- Topology Level
- geometryOnly
- Vector Object Type
- composite
- Vector Object Count
- 4489
Metadata Reference Information
- Hierarchy Level
- dataset
- Metadata File Identifier
- F7A04265-D66A-4241-814D-927A29F15198
- Metadata Point of Contact
- Name
- Arthur H. Robinson Map Library
- Position Name
- Metadata technician
- Delivery Point
- 550 N. Park Street
- City
- Madison
- Administrative Area
- WI
- Postal Code
- 53706
- Country
- US
- askmap@library.wisc.edu
- Phone
- (608) 262-1471
- Metadata Date Stamp
- 2020-04-30
- Metadata Standard Name
- ISO 19139 Geographic Information - Metadata - Implementation Specification
- Metadata Standard Version
- 2007
- Character Set
- utf8
