Census Tract Relationship Files show how 1990 census tracts relate to Census 2000 census tracts. The files consist of one record per each 1990 census tract/2000 census tract spatial set (the area that is uniquely shared between a 1990 and 2000 census tract).
List of Census Tract Numbers for each state by county. Census Tract Numbers are posted in two files: Alabama through Montana and Nebraska through Wyoming.
List of Census Tract Numbers for each state by county. Census Tract Numbers are posted in two files: Alabama through Montana and Nebraska through Wyoming.