2014 Cartographic Boundary File, 5-Digit ZIP Code Tabulation Area for United States, 1:500,000

Metadata Updated: July 21, 2015

The 2014 cartographic boundary KMLs 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.

Access & Use Information

Downloads & Resources

Dates

Metadata Date 2015-05
Metadata Created Date July 21, 2015
Metadata Updated Date July 21, 2015
Reference Date(s) 201505 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from 2014_kml_zcta510_500k

Additional Metadata

Resource Type Dataset
Metadata Date 2015-05
Metadata Created Date July 21, 2015
Metadata Updated Date July 21, 2015
Reference Date(s) 201505 (publication)
Responsible Party Unknown
Contact Email
Access Constraints Access Constraints: None, Use Constraints:The intended display scale for this file is 1:500,000. This file should not be displayed at scales larger than 1:500,000. 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 is for visual display at appropriate small scales only. Cartographic boundary files should not be used for geographic analysis including area or perimeter calculation. Files should not be used for geocoding addresses. Files should not be used for determining precise geographic area relationships.
Bbox East Long 179.77847
Bbox North Lat 71.365162
Bbox South Lat -14.548699
Bbox West Long -179.148909
Coupled Resource
Frequency Of Update notPlanned
Guid cb_2014_us_zcta510_500k.kml.iso.xml
Harvest Object Id 160534d6-1b23-47d0-966c-c45210573990
Harvest Source Id 03f37f7e-d771-42dc-a179-f4ec7a03636a
Harvest Source Title 2014_kml_zcta510_500k
Licence
Metadata Language
Metadata Type geospatial
Progress
Spatial Data Service Type
Spatial Reference System urn:ogc:def:crs:EPSG::3395
Spatial Harvester True
Temporal Extent Begin 2015-05
Temporal Extent End 2015-05

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