TIGER/Line Shapefile, 2012, Series Information File for the Current Block State-based Shapefile

Metadata Updated: January 22, 2015

The TIGER/Line shapefiles and related database files (.dbf) 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 shapefile is designed to stand alone as an independent data set, or they can be combined to cover the entire nation. Census Blocks are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by non-visible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. Census blocks are relatively small in area; for example, a block in a city bounded by streets. However, census blocks in remote areas are often large and irregular and may even be many square miles in area. A common misunderstanding is that data users think census blocks are used geographically to build all other census geographic areas, rather all other census geographic areas are updated and then used as the primary constraints, along with roads and water features, to delineate the tabulation blocks. As a result, all 2010 Census blocks nest within every other 2010 Census geographic area, so that Census Bureau statistical data can be tabulated at the block level and aggregated up to the appropriate geographic areas. Census blocks cover all territory in the United States, Puerto Rico, and the Island Areas (American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands). Blocks are the smallest geographic areas for which the Census Bureau publishes data from the decennial census. A block may consist of one or more faces.

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Collection

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Dates

Metadata Date January 22, 2015
Metadata Created Date March 26, 2013
Metadata Updated Date January 22, 2015
Reference Date(s) January 1, 2012 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from Census TIGER 2012 Current Block

Additional Metadata

Resource Type Dataset
Metadata Date January 22, 2015
Metadata Created Date March 26, 2013
Metadata Updated Date January 22, 2015
Reference Date(s) January 1, 2012 (publication)
Responsible Party U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch (Point of Contact)
Contact Email
Access Constraints Use Constraints: 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 acknowledgment 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., Access Constraints: None
Bbox East Long 179.859681
Bbox North Lat 71.441059
Bbox South Lat -14.601813
Bbox West Long -179.231086
Collection Metadata true
Coupled Resource
Frequency Of Update notPlanned
Guid SeriesCollection_tl_2012_tabblock.shp.xml
Harvest Object Id 2e77ea09-2e06-4de0-a180-7c938f0eeaa3
Harvest Source Id 8739be08-44eb-4551-9bb1-27bfbfd2ddde
Harvest Source Title Census TIGER 2012 Current Block
Licence No warranty, expressed or implied is made with regard to the accuracy of these data, and no liability is assumed by the U.S. Government in general or the U.S. Census Bureau in specific as to the spatial or attribute accuracy of the data. The act of distribution shall not constitute any such warranty and no responsibility is assumed by the U.S. government in the use of these files. The boundary information in the TIGER/Line Shapefiles is for statistical data collection and tabulation purposes only; their depiction and designation for statistical purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2011-08-01
Temporal Extent End 2012-06-01

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