On December 12, 2005, The US Census Bureau made available the most recent updates to the Topologically Integrated Geographic Encoding and Referencing system (TIGER) data. These data contain realigned county boundary features.
From the Census Bureau... The list of counties with realigned street features released on December 2, 2005 included Barrow County, Georgia (FIPS 13013), Hart County, Georgia (FIPS 13147), Morgan County, Georgia (FIPS 13211), and Blanco County, Texas (FIPS 48031). These counties should not have appeared on the list and have been removed. Blanco County, Texas was removed from the list and the list replaced on December 7, 2005.
The 2005 First Edition TIGER/Line files are the first of two versions of the TIGER/Line files that contain 2005 geographic boundaries. The Census Bureau is releasing the 2005 First Edition TIGER/Line files by county or statistically equivalent entity based on the latest available governmental unit boundaries (generally January 1, 2005) The 2005 First Edition TIGER/Line file coverage is as follows: all counties, parishes, boroughs, census areas and equivalent entities for each state, the District of Columbia, Puerto Rico and the Island Areas.
The 2005 First Edition TIGER/Line files contain realigned street feature coordinates that have progressed through the MAF/TIGER Accuracy Improvement Project. The Census Bureau is providing two lists of counties with realigned street features, counties with realigned street features in the 2005 First Edition TIGER/Line files and a consolidated list of counties with realigned street features. Except for those counties with realigned street features, the 2005 First Edition TIGER/Line files contain very few updates to street features or address ranges from the Census 2000 versions of the TIGER/Line files.
The TIGER 1-Cell Source Code (SOURCEID) in Record Type M identifies the source for each line segment and provides the link between the TIGER/Line files and the source and horizontal spatial accuracy information in the county based metadata. Please note that the horizontal spatial accuracy, where reported in the metadata, refers only to the realigned street features identified as matched to the positionally accurate source file with that accuracy. It is not the spatial accuracy of the TIGER/Line file as a whole.
About the Data:
There is one TIGER/Line file (in a compressed format) for each county or county equivalent. The file names consist of TGR + the 2-digit state FIPS (Federal Information Processing Standards) code + the 3-digit county FIPS code (i.e. TGR01031.ZIP for Coffee County, Alabama.) Each state folder contains individual county files as well as a Counts file. The county files are stored in compressed format and are compatible with PK Ware's PK Zip software. The COUNTSnn.TXT files (where "nn" is the state FIPS code) show the counts for the number of records for each record type by county for a state. If the count for a particular record type is 0, then that record type does not exist for that county.
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