The first map documents the African
American population from census data in the continental United States. As one can see, the higher concentrations of
African Americans are higher in the Southeastern United States, particularly in
the Carolinas, Alabama, Louisiana, and Virginia. This pattern is shown by the dark green part
of the map. This map could be helpful in
election season, as politicians targeting the ethnic populations in the country
need to know where they are concentrated in order to develop strategies on how
to court these potential voters.
The map above details the census
data of Asian Americans from census data in the continental United States. The major concentrations of this population
are in Mid and Southern California, some districts in Washington, and in a couple of
districts in the Northeast. In the
districts with the most concentrated Asian American population, it is between
20 and 46% of the population.
The third and final map displays
the census data of the “Other Population” in the continental United States. Most of these concentrations are found in
southern Texas, southern California, and in the Southwest in general. Based on the location of the patterns from
the above map, it is probable that these data represent the census of Hispanic
Americans.
What these maps do is show us where
a large concentration of a particular ethnicity resides in the continental
United States. From these maps, it is
possible to deduce trends as to where ethnicities concentrate in this country
and perhaps derive further research questions from these patterns. Color contrasts and symbols serve to
emphasize the differences between larger
and smaller concentrations of the targeted ethnicity and accentuate the
patterns that the creator wants to bring into focus. My overall impression of GIS is that it is an
effective tool for displaying patterns from the census.



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