The US Census Bureau is releasing the 2011 TIGER/Line Shapefiles today, December 12, 2011. The 2011 TIGER/Line Shapefiles website can be accessed through census.gov by selecting TIGER from the middle of the page or directly at http://www.census.gov/geo/www/tiger/tgrshp2011/tgrshp2011.html. You can access the shapefiles through our ftp site at http://www2.census.gov/geo/tiger/TIGER2011/ or ftp://ftp2.census.gov/geo/tiger/TIGER2011/. The 2011 TIGER/Line Shapefiles are organized by type of geography (e.g. Congressional Districts, Block Groups, etc.). The web download interface will be available later this week.
The 2011 TIGER/Line Shapefiles release includes geography for legal areas as of January 1, 2011 and for statistical areas as of 2010.
The 2011 TIGER/Line Shapefiles release includes a new Address Range Feature county-based shapefile which will allow for easier geocoding:
The Address Ranges Feature Shapefile (ADDRFEAT.shp) contains the geospatial edge geometry and attributes of all unsuppressed address ranges for a county or county equivalent area. The term “address range” refers to the collection of all possible structure numbers from the first structure number to the last structure number and all numbers of a specified parity in between along an edge side relative to the direction in which the edge is coded. Single-address address ranges have been suppressed to maintain the confidentiality of the addresses they describe.
The ADDRFEAT shapefile contains a record for each address range to street name combination. Address ranges associated to more than one street name are also represented by multiple coincident address range feature edge records. The ADDRFEAT shapefile includes all unsuppressed address ranges and will have better geocoding address match rates compared to the All Lines Shapefile (EDGES.shp) which only includes the most inclusive address range associated with each side of a street edge. The TIGER/Line Files contain potential address ranges, not individual addresses. Potential ranges include the full range of possible structure numbers even though the actual structures may not exist.
For questions about the 2011 TIGER/Line Shapefiles please contact firstname.lastname@example.org.