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Data > Data Specials > About Data


Your Price: $49.95

2007 First Edition TIGER/Line® Shapefiles

Data Size: 22GB

Download a PDF or Text file with information on the layers available in this set.

Individual files available in our Data Catalog at the national, state, and county level. Click here for more information.

The TIGER/Line Shapefiles are extracts containing selected geographic and cartographic information from the Census Bureau's MAF/TIGER® (Master Address File / Topologically Integrated Geographic Encoding and Referencing) database. The MAF/TIGER database was developed at the Census Bureau to support a variety of geographic programs and operations including functions such as mapping, geocoding, and geographic reference files that are used in decennial and economic censuses and sample survey programs. Spatial data for geographic features such as roads, railroads, rivers, and lakes, as well as legal and statistical geographic areas are included in the product. Other information about these features, such as the name, the type of feature, address ranges, and the geographic relationship to other features, also are inlcuded. The TIGER/Line Shapefiles are typically used to provide the digital map base for a Geographic Information System or for mapping software.

The 2007 TIGER/Line Shapefiles contain current geographic areas (boundaries of governmental units as of January 1, 2007) and Census 2000 vintage geography. The shapefiles also contain some additional post January 1, 2007 feature updates reported in the Boundary and Annexation Survey (BAS). The 2007 TIGER/Line Shapefiles contain realigned street feature coordinates as a result of the MAF/TIGER Accuracy Improvement Project. The Census Bureau is providing a list of counties that have not been realigned via the MTAIP process.

New Terminology
The modernization of the MAF/TIGER system has resulted in some changes in terminology.

Edge - Supersedes complete chain; refers to both visible and non-visible linear features.
Face - Supersedes GT-polygon; refers to areal (polygon) features. MAF/TIGER Feature Class Code (MTFCC)—Supersedes the Census Feature Class Code (CFCC). The MTFCC is a 5-digit code intended to classify and describe geographic objects or features. The Census Bureau has prepared a "crosswalk" between the CFCC and the MTFCC that is now available in [Excel] and [TEXT] format. Updated October 9, 2007


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