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.
Census Blocks are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad
tracks, and/or by nonvisible 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.
Citation
Title Lincoln County 2010 Census Blocks
publication Date
2011-06-06T15:00:59
cited responsible party
-
originator
organisation Name
U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Title INCITS.38-200x (R2004),INCITS.31-200x (R2007),INCITS.454-200x,INCITS 455-200x,INCITS 446-2008
purpose:
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.
Resource language:
eng; USA
Resource progress code:
complete
Resource Maintenance Information
maintenance or update frequency:
unknown
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
use constraint:
otherRestrictions
Other constraints
Access Constraints: None. 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
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.
Spatial representation type code:
vector
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-106.373929
eastBoundLongitude
-104.884834
northBoundLatitude
34.34727
southBoundLatitude
33.132032
Temporal Extent
publication date
2010-01-01
2010-07-01
point of contact
-
pointOfContact
organisation Name
Earth Data Analysis Center
position Name RGIS Clearinghouse Manager
Contact information
Telephone
Voice (505) 277-3622
Fax (505) 277-3614
Address
MSC01 11101 University of New Mexico, Albuquerque, NM, 87131-0001
Country USA
Title North American Datum of 1983 in the 48 contiguous states, the District of Columbia, Alaska, Hawaii, Puerto Rico, the Virgin
Islands of the United States, and the Pacific Island Areas.
description TIGER/Line Shapefiles are extracted from the Census MAF/TIGER database by nation, state, county, and entity. Census MAF/TIGER
data for all of the aforementioned geographic entities are then distributed among the shapefiles each containing attributes
for line, polygon, or landmark geographic data.
source
source citation
Title MAF/TIGER
source
source description
The selected geographic and cartographic information (line segments) are derived from the U.S. Census Bureau's Master Address
File Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) database.
representative resolution scale:
Scale denominator:
source citation
Title Census MAF/TIGER database
alternateTitle
MAF/TIGER
cited responsible party
-
resourceProvider
organisation Name
U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Resource extent
Temporal Extent
publication date
2010-01-01
2010-07-01
Completeness Commission
ConceptualConsistency
measure Description
The Census Bureau performed automated tests to ensure logical consistency and limits of shapefiles. Segments making up the
outer and inner boundaries of a polygon tie end-to-end to completely enclose the area. All polygons are tested for closure.
The Census Bureau uses its internally developed geographic update system to enhance and modify spatial and attribute data
in the Census MAF/TIGER database. Standard geographic codes, such as FIPS codes for states, counties, municipalities, county
subdivisions, places, American Indian/Alaska Native/Native Hawaiian areas, and congressional districts are used when encoding
spatial entities. The Census Bureau performed spatial data tests for logical consistency of the codes during the compilation
of the original Census MAF/TIGER database files. Most of the codes for geographic entities except states, counties, urban
areas, Core Based Statistical Areas (CBSAs), American Indian Areas (AIAs), and congressional districts were provided to the
Census Bureau by the USGS, the agency responsible for maintaining FIPS 55. Feature attribute information has been examined
but has not been fully tested for consistency. For the TIGER/Line Shapefiles, the Point and Vector Object Count for the G-polygon
SDTS Point and Vector Object Type reflects the number of records in the shapefile attribute table. For multi-polygon features,
only one attribute record exists for each multi-polygon rather than one attribute record per individual G-polygon component
of the multi-polygon feature. TIGER/Line Shapefile multi-polygons are an exception to the G-polygon object type classification.
Therefore, when multi-polygons exist in a shapefile, the object count will be less than the actual number of G-polygons.