Dataset Identification:
Resource Abstract:
- description: The 2015 cartographic boundary shapefiles are simplified representations of selected geographic areas from the
U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER) Database
(MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization is
performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of geographies
within a file set for a given year. Geographic areas may not align with the same areas from another year. Some geographies
are available as nation-based files while others are available only as state-based files. ZIP Code Tabulation Areas (ZCTAs)
are approximate area representations of U.S. Postal Service (USPS) ZIP Code service areas that the Census Bureau creates to
present statistical data for each decennial census. The Census Bureau delineates ZCTA boundaries for the United States, Puerto
Rico, American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands once each decade
following the decennial census. Data users should not use ZCTAs to identify the official USPS ZIP Code for mail delivery.
The USPS makes periodic changes to ZIP Codes to support more efficient mail delivery. The Census Bureau uses tabulation blocks
as the basis for defining each ZCTA. Tabulation blocks are assigned to a ZCTA based on the most frequently occurring ZIP Code
for the addresses contained within that block. The most frequently occurring ZIP Code also becomes the five-digit numeric
code of the ZCTA. These codes may contain leading zeros. Blocks that do not contain addresses but are surrounded by a single
ZCTA (enclaves) are assigned to the surrounding ZCTA. Because the Census Bureau only uses the most frequently occurring ZIP
Code to assign blocks, a ZCTA may not exist for every USPS ZIP Code. Some ZIP Codes may not have a matching ZCTA because too
few addresses were associated with the specific ZIP Code or the ZIP Code was not the most frequently occurring ZIP Code within
any of the blocks where it exists. The generalized ZCTA boundaries in this file are based on those delineated following the
2010 Census.; abstract: The 2015 cartographic boundary shapefiles are simplified representations of selected geographic areas
from the U.S. Census Bureau's Master Address File / Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER)
Database (MTDB). These boundary files are specifically designed for small-scale thematic mapping. When possible, generalization
is performed with the intent to maintain the hierarchical relationships among geographies and to maintain the alignment of
geographies within a file set for a given year. Geographic areas may not align with the same areas from another year. Some
geographies are available as nation-based files while others are available only as state-based files. ZIP Code Tabulation
Areas (ZCTAs) are approximate area representations of U.S. Postal Service (USPS) ZIP Code service areas that the Census Bureau
creates to present statistical data for each decennial census. The Census Bureau delineates ZCTA boundaries for the United
States, Puerto Rico, American Samoa, Guam, the Commonwealth of the Northern Mariana Islands, and the U.S. Virgin Islands once
each decade following the decennial census. Data users should not use ZCTAs to identify the official USPS ZIP Code for mail
delivery. The USPS makes periodic changes to ZIP Codes to support more efficient mail delivery. The Census Bureau uses tabulation
blocks as the basis for defining each ZCTA. Tabulation blocks are assigned to a ZCTA based on the most frequently occurring
ZIP Code for the addresses contained within that block. The most frequently occurring ZIP Code also becomes the five-digit
numeric code of the ZCTA. These codes may contain leading zeros. Blocks that do not contain addresses but are surrounded by
a single ZCTA (enclaves) are assigned to the surrounding ZCTA. Because the Census Bureau only uses the most frequently occurring
ZIP Code to assign blocks, a ZCTA may not exist for every USPS ZIP Code. Some ZIP Codes may not have a matching ZCTA because
too few addresses were associated with the specific ZIP Code or the ZIP Code was not the most frequently occurring ZIP Code
within any of the blocks where it exists. The generalized ZCTA boundaries in this file are based on those delineated following
the 2010 Census.
Citation
- Title 2015 Cartographic Boundary File, 5-Digit ZIP Code Tabulation Area for United States, 1:500,000.
-
- creation Date
2016-05-06T17:20:12.470963
Resource language:
Processing environment:
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Metadata data stamp:
2018-08-06T20:48:57Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T20:48:57Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:0d3d3089-5bb8-4721-9a28-97c5dce61902
Metadata record format is ISO19139 XML (MD_Metadata)