TIGER/Line Shapefile, 2012, state, Illinois, Current Place
Dataset Identification:
Resource Abstract:
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. The TIGER/Line
Files include both incorporated places (legal entities) and census designated places or CDPs (statistical entities). An incorporated
place is established to provide governmental functions for a concentration of people as opposed to a minor civil division
(MCD), which generally is created to provide services or administer an area without regard, necessarily, to population. Places
always nest within a State, but may extend across county and county subdivision boundaries. An incorporated place usually
is a city, town, village, or borough, but can have other legal descriptions. CDPs are delineated for the decennial census
as the statistical counterparts of incorporated places. CDPs are delineated to provide data for settled concentrations of
population that are identifiable by name, but are not legally incorporated under the laws of the State in which they are located.
The boundaries for CDPs often are defined in partnership with State, local, and/or tribal officials and usually coincide with
visible features or the boundary of an adjacent incorporated place or another legal entity. CDP boundaries often change from
one decennial census to the next with changes in the settlement pattern and development; a CDP with the same name as in an
earlier census does not necessarily have the same boundary. The only population/housing size requirement for CDPs for the
2010 Census is that they must contain some housing and population. The boundaries of all 2010 Census incorporated places are
as of January 1, 2010 as reported through the Census Bureau's Boundary and Annexation Survey (BAS). The boundaries of all
2010 Census CDPs were delineated as part of the Census Bureau's Participant Statistical Areas Program (PSAP).
Citation
Title TIGER/Line Shapefile, 2012, state, Illinois, Current Place
publication Date
2012-01-01
Edition 2012
presentationForm
mapDigital
cited responsible party
-
originator
organisation Name
U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Title ANSI INCITS 38:2009 (Formerly FIPS 5-2), ANSI INCITS 31:2009 (Formerly FIPS 6-4),ANSI INCITS 454:2009 (Formerly FIPS 8-6),
ANSI INCITS 455:2009(Formerly FIPS 9-1), ANSI INCITS 446:2008 (Geographic Names Information System (GNIS))
other Citation Details
Cinergi keyword enhanced at Sat Nov 12 19:56:44 UTC 2016
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:
completed
Resource Maintenance Information
maintenance or update frequency:
NO CHANGES OR UPDATES WILL BE MADE TO THIS VERSION OF THE TIGER/LINE SHAPEFILES. FUTURE RELEASES OF TIGER/LINE SHAPEFILES
WILL REFLECT UPDATES MADE TO THE CENSUS MAF/TIGER DATABASE.
Constraints on resource usage:
Constraints
Use limitation statement:
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.
Constraints on resource usage:
Legal Constraints
use constraint:
otherRestrictions
Other 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 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.
Constraints on resource usage:
Legal Constraints
Access Constraints
otherRestrictions
Other constraints
Access Constraints: None
Spatial representation type code:
vector
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude
-91.513079
eastBoundLongitude
-87.019935
northBoundLatitude
42.508338
southBoundLatitude
36.970298
Temporal Extent
2011-08-01
2012-06-01
point of contact
-
pointOfContact
organisation Name
U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact information
Telephone
Voice 301-763-1128
Fax 301-763-4710
Address
4600 Silver Hill Road, Stop 7400, Washington, DC, 20233-7400
Country United States
source description
Source Contribution: All line segmentsSource Type online
source citation
Title Census MAF/TIGER database
publication Date
cited responsible party
-
originator
organisation Name
U.S. Department of Commerce, U.S. Census Bureau, Geography Division
Resource extent
Temporal Extent
2011-08-01
2012-06-01
Completeness Commission
evaluation Method Description
Data completeness of the TIGER/Line Shapefiles reflects the contents of the Census MAF/TIGER database at the time the TIGER/Line
Shapefiles were created.
Completeness Omission
evaluation Method Description
Data completeness of the TIGER/Line Shapefiles reflects the contents of the Census MAF/TIGER database at the time the TIGER/Line
Shapefiles were created.
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.
notes: This metadata was automatically generated from the FGDC Content Standards for Digital Geospatial Metadata standard (version
FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
Metadata contact
-
pointOfContact
organisation Name
U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Products Branch
Contact information
Telephone
Voice 301-763-1128
Fax 301-763-4710
Address
4600 Silver Hill Road, Stop 7400, Washington, DC, 20233-7400
Country United States