The following voting disticts in Alaska are named incorrectly in the 2010 TIGER/Line Shapefiles:

21-415 Chugach Hills No. 2 Precinct in Anchorage Municipality (02020) should be Chugach Foothills No. 2 Precinct

06-610 Mcgrath Precinct in Bethel Census Area (02050) should be McGrath Precinct

37-710 Clarks Point Precinct in Dillingham Census Area (02070) should be Clark’s Point Precinct

04-410 Mendenhall Valley No. 1 District in Juneau City and Borough (02110) should be Mendenhall Valley No. 1 Precinct

34-870 Salamatoff Precinct in Kenai Peninsula Borough (02122) should be Salamatof Precinct

There is the possibility that some Census 2000 blocks are missing from this version of the shapefiles. If a state boundary was modified in our database a Census 2000 block may have moved from one state to the adjacent state. Due to the timing requirements for this version of the shapefiles these blocks will be missing from the Census 2000 block inventory. Complete coverage of Census 2000 blocks can be found in previous versions of the TIGER/Line Shapefiles.

Please see User Note 18 for additional information.

The feature names in the All Lines shapefile may not be consistent from one edge to the next along the extent of a road feature. The All Lines shapefile identifies the primary street name for an edge, however some primary names and alternate names have been flipped resulting in a primary feature name for one edge being identified as an alternate name on another. All feature names (featname.dbf), whether primary or alternate, can be related to the All Lines shapefile (edges.shp) by matching the TLIDs.

In the All Lines shapefile, the permanent face ID on the left of the edge (TFIDL) value or the permanent face ID on the right of the edge (TFIDR) value will be blank for edges on the outer boundary of a county and for edges on the outer boundary of the United States, Puerto Rico and the Island Areas. The TFID (either left or right side) that does not appear in the attribute table of the county file will appear in the adjacent county's attribute table. This may impact users who are creating layers and topologies from the All Lines Shapefiles.

The Hancock County, IL TIGER county road name directions appear to be switched for the entire county.  This problem was confirmed by the Census Bureau Headquarter Geographers, Chicago Regional Office Geographers and Hancock County, IL officials.  Hancock County Road names are based on a Northing and Easting coordinate grid system.  County Roads with Northing directionals should have an East-West orientation and County Roads with Easting directionals should have a North-South orientation in Hancock County, IL.  The Hancock County Road name directionals are opposite in the MAF/TIGER Database (MTDB).  Northing directionals have an incorrect North-South orientation and the Easting County Roads have an incorrect East-West orientation in Hancock County.

The ZIP plus 4 code values will not appear in the 2010 TIGER/Line Shapefiles.

Topological faces with the LWFLAG values: G (Glacier), I (Intermittent Water), L (Land) and S (Marsh/Swamp) are considered land areas for the calculation of the Areawater shapefile, ALAND measurement field.  Only topological faces with the LWFLAG value of P (Perennial Water) are used to calculate water areas in the Areawater shapefile, AWATER measurement field.  Glaciers, intermittent lakes, and marsh/swamp are considered water features although the area within them is classified as land for area measurement purposes.

The 2010 TIGER/Line shapefiles include state-based files containing primary and secondary roads and county-based files containing all roads. Nation-based railroad and primary road files will be coming out in 2011 as part of the later phases of the 2010 TIGER/Line shapefile release.

The All Lines Shapefile (Edges) includes all linear feature geography such as roads (street features), railroads, hydrography, and other linear features.  The All Lines Shapefile is available at the county level only.  There are several attribute flags within the shapefile that indicate if the feature is a road, rail, or water.  Each edge has a unique TLID (TIGER/Line identifier) value.

More detailed information regarding these files can be found in the technical documentation.

The highrange and lorange grade ranges are missing from all 2000 elementary school districts. The lorange grade ranges are missing from all 2000 secondary and 2000 unified school districts.

In the Census 2000 American Indian Tribal Subdivision Shapefile for South Dakota, a sliver of Porcupine District is missing the TRSUBFP00 code as this was not a valid state to tribal subdivision relationship.

The Primary and Secondary Roads shapefiles include all road segments with a MAF/TIGER Feature Classification Code (MTFCC) of S1100 (Primary Road) or S1200 (Secondary Road). Gaps in the primary and secondary road coverage may occur if a road segment is misclassified and assigned a different MTFCC. One example of where this has occurred is Attala County, MS. To obtain complete road coverage, download the 'All Roads' shapefiles, available by county.

Michigan's congressional district plan, as provided to the Census Bureau, did not provide congressional district assignments for water blocks within the Great Lakes for the 111th Congress. The 2010 TIGER/Line Shapefiles contain 633 water blocks that should be coded to no congressional district and are incorrectly assigned to congressional districts 1, 2, 5, 6, 9, 10, and 12-15. These changes occurred in the following 21 counties: Alger (003), Allegan (005), Alpena (007), Antrim (009), Bay (017), Benzie (019), Charlevoix (029), Chippewa (033), Huron (063), Iosco (069), Mackinac (097), Macomb (099), Manistee (101), Muskegon (121), Ottawa (139), Presque Isle (141), Sanilac (151), Schoolcraft (153), Tuscola (157), Van Buren (159), and Wayne (163).

Ohio's congessional district plan, as provided to the Census Bureau, did not provide congressional district assignments for water blocks within the Great Lakes for the 111th Congress. The 2010 TIGER/Line Shapefiles contain 118 water blocks that should be coded to no congressional district and are incorrectly assigned to congressional districts 5, 9, and 13. These changes occurred in the following five counties: Erie (043), Lorain (093), Lucas (095), Ottawa (123), and Sandusky (143).

Also see User Note 21.

On February 23, 2011, selected New York layers were replaced.  Please see the list of affected layers for additional information.

Some shapefiles and relationship files were inadvertently omitted from our website, and were then added in early February. The following have been added to our download interface and layer-based FTP site:

• All files for Ballard County, KY
• 2000 and 2010 block, 2000 and 2010 tract, and 2010 voting district shapefiles for Citrus County, FL
• 2010 voting district shapefile for Jefferson County, IL

The following have been added to our state-based FTP site:

• Some files for Vernon and all files for Vilas, Walworth, Washburn, Washington, Waukesha, Waupaca, Waushara, and Winnebago Counties, WI

One shapefile was replaced in the download interface and the layer-based FTP site after the original file was found to be damaged:

• Roads shapefile for Citrus County, FL

NOTE: Other files in the affected states or counties listed above may have been re-copied to the FTP sites and download interface at the same time that the missing or corrected files were added. However, those files are identical to the original versions of the files.

On March 21, 2011, the following files were replaced in the download interface, layer-based FTP site, and state-based FTP site:

• Census 2000 shapefiles for Louisiana, Mississippi, New Jersey, and Virginia (to correct the potentially missing blocks described in User Note 2).
• Topological Faces (Polygons With All Geocodes) Shapefiles for all counties

We discovered that on our ftp site by entity type, data for counties that existed for Census 2000 but not for the 2010 Census were not available. This affects only the Census 2000 vintage geography. These counties were available on the ftp site by state. The counties that existed for Census 2000 and not for the 2010 Census are:

• 02201 Prince of Wales-Outer Ketchikan Census Area, AK
• 02232 Skagway-Hoonah-Angoon Census Area, AK
• 02280 Wrangell-Petesrsburg Census Area, AK
• 51560 Clifton Forge city, VA

On May 11, 2011, national and state-based ZIP Code Tabulation Area Shapefiles were released. Additionally, the Topological Faces (Polygons With All Geocodes) Shapefiles were replaced with versions that contain 2010 ZIP Code Tabulation Area codes.

Posted May 12, 2011

On June 23, 2011, shapefiles for the Island Areas (American Samoa, Commonwealth of the Northern Mariana Islands, Guam, and the U. S. Virgin Islands) were released.

Posted June 23, 2011

The state-based New England City and Town Area shapefiles for all six New England states were replaced on June 30, 2011. The new files include NECTAs that were inadvertently omitted from the original versions of the files.

Posted June 30, 2011

The New England City and Town Area (NECTA) Division shapefile for New Hampshire erroneously contains some NECTA divisions that are located entirely in Massachusetts.

The following NECTA divisions exist in New Hampshire and should appear in the New Hampshire NECTA division shapefile: Haverhill-North Andover-Amesbury, MA-NH; Lawrence-Methuen-Salem, MA-NH; Lowell-Billerica-Chelmsford, MA-NH; and Nashua, NH-MA.

The following NECTA divisions exist only in Massachusetts and should not appear in the New Hampshire NECTA division shapefile: Boston-Cambridge-Quincy, MA; Brockton-Bridgewater-Easton, MA; Framingham, MA; Peabody, MA; and Taunton-Norton-Raynham, MA.

Posted September 8, 2011