These files also contain some shorelines and hydrographic features. All other Digital Boundary Files are created by aggregating the component enumeration area boundaries. Thus, the digital boundary files may not be suitable for mapping applications where realistic shoreline is important, or for analysis requiring the computation of real land area. Digital Boundary Files portray the official boundaries used for 1996 Census collection and, therefore, often extend as straight lines into bodies of water. The 1996 files are similar to the 1991 files.
Some files are available in both formats.
Dates shown providing no links to data are not available at that particular geographic level .