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2017 ZIP Code Tabulation Areas (ZCTAs) Boundary File for North Carolina, 1:500,000


Download Link: http://data.nconemap.gov/downloads/vector/zcta.zip
Abstract: The 2017 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.
Purpose: These files were specifically created to support small-scale thematic mapping. To improve the appearance of shapes at small scales, areas are represented with fewer vertices than detailed TIGER/Line Shapefiles. Cartographic boundary files take up less disk space than their ungeneralized counterparts. Cartographic boundary files take less time to render on screen than TIGER/Line Shapefiles. You can join this file with table data downloaded from American FactFinder by using the AFFGEOID field in the cartographic boundary file. If detailed boundaries are required, please use the TIGER/Line Shapefiles instead of the generalized cartographic boundary files.
Publication Date: 201803
Originator: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Cartographic Products and Services Branch
Time Period of Content:
Time Period Information:
Range of Dates/Times:
Beginning Date: 201803
Ending Date: 201803
Currentness Reference: publication date
Status:
Progress: Complete
Maintenance and Update Frequency: None planned. No changes or updates will be made to this version of the cartographic boundary files. New versions of the cartographic boundary files will be produced on an annual release schedule. Types of geography released may vary from year to year.
Spatial Domain:
Bounding Coordinates:
West Bounding Coordinate: -179.148909
East Bounding Coordinate: 179.77847
North Bounding Coordinate: 71.365162
South Bounding Coordinate: -14.548699
Contact Organization: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Customer Services Branch
Contact Electronic Mail Address: geo.geography@census.gov
Contact Voice Telephone: 301.763.1128
Contact Organization: U.S. Department of Commerce, U.S. Census Bureau, Geography Division, Geographic Customer Services Branch
Horizontal Datum Name: North American Datum of 1983
Ellipsoid Name: Geodetic Reference System 80
Attribute:
Attribute Label: FID
Attribute Definition: Internal feature number.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute Label: Shape
Attribute Definition: Feature geometry.
Attribute Definition Source: Esri
Attribute Domain Values:
Unrepresentable Domain: Coordinates defining the features.
Attribute:
Attribute Label: ZCTA5CE10
Attribute Definition: 2010 Census 5-digit ZIP Code Tabulation Area code
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 00401
Range Domain Maximum: 99950
Attribute:
Attribute Label: AFFGEOID10
Attribute Definition: American FactFinder summary level code + geovariant code + '00US' + GEOID
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Codeset Domain:
Codeset Name: American FactFinder geographic identifier
Codeset Source: U.S. Census Bureau
Attribute:
Attribute Label: GEOID10
Attribute Definition: 2010 Census 5-digit ZIP Code Tabulation Area identifier, 2010 Census 5-digit ZIP Code Tabulation Area code
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Unrepresentable Domain: 2010 Census 5-digit ZIP Code Tabulation Area code found in ZCTA5CE10
Attribute:
Attribute Label: ALAND10
Attribute Definition: 2010 Census land area (square meters)
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 9,999,999,999,999
Attribute Units of Measure: square meters
Attribute:
Attribute Label: AWATER10
Attribute Definition: 2010 Census water area (square meters)
Attribute Definition Source: U.S. Census Bureau
Attribute Domain Values:
Range Domain:
Range Domain Minimum: 0
Range Domain Maximum: 9,999,999,999,999
Attribute Units of Measure: square meters
Distribution Liability: 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 is for small-scale mapping purposes only; boundary depiction and designation for small-scale mapping purposes do not constitute a determination of jurisdictional authority or rights of ownership or entitlement and they are not legal land descriptions. NCCGIA is charged with the development and maintenance of NC OneMap and, in cooperation with other mapping organizations, is committed to offering its users accurate, useful, and current information. Although every effort has been made to ensure the accuracy of information, errors and conditions originating from physical sources used to develop this dataset may be reflected in the data supplied. The user must be aware of possible conditions and bear responsibility for the appropriate use of the information with respect to possible errors, original map scale, collection methodology, currency of data, and other conditions specific to certain data. NCCGIA does not support secondary distribution of this dataset without its current, compliant metadata record. The use of trade names or commercial products does not constitute their endorsement by NCCGIA or North Carolina State Government.
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