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'''1990 forward ''': At the Census Bureau Tiger Mapping internet site there are several different sections to view''':''' U.S. Census Bureau's Mapping and Cartographic Resources: [http://www.census.gov/geo/www/tiger/index.html http://www.census.gov/geo/www/tiger/index.html] | '''1990 forward ''': At the Census Bureau Tiger Mapping internet site there are several different sections to view''':''' U.S. Census Bureau's Mapping and Cartographic Resources: [http://www.census.gov/geo/www/tiger/index.html http://www.census.gov/geo/www/tiger/index.html] | ||
[http://www. | [http://www.mapofus.org/united-states/ County boundaries] changed often over the years, these maps show the county boundaries for each of the census years. | ||
= United State Census Bureau = | = United State Census Bureau = | ||