Population Densities US Counties

This map shows the population percentages of the "other" group by counties from the US 2000 census. The "other" group is defined as citizens who did not identify with any of the listed ethnicities on the 2000 US census survey such as White or Asian. Based on the distribution of populations in this map it is likely that the majority of persons in this group are Latino and come from either Mexico or Central America. The concentrations of populations near the Mexican border suggest this population is made up primarily of immigrants. This is illustrated by the darker- more densely populated- regions. The combination of the map of the United States and all of its counties with information in the form of xcel tables from the US Census has been transformed into this map through ArcMaps. The visualization of the data allows us to more easily see patterns in population distributions.



This map is a visualization of the data from US citizens that identify themselves as "black". As the map shows, the majority of "black" persons reside on the East coast and the South. States such as Louisiana, Alabama, and South Carolina have the darkest blue areas and therefore the highest densities of "blacks". There are between 0-8% "black" populations in the Midwest and West states but California has a higher number, mostly around Los Angeles and San Francisco. The visualization of population densities with this map allows us to easily see population distributions.




This map shows the distribution of population percentages for US citizens that consider themselves to be "Asian". The map shows concentrations of "Asians" on the coasts of the US. The West coast is a little darker indicating a higher population percentage of "Asians". This is likely the result of immigration from Asia via the Pacific Ocean. Once again, the areas around Los Angeles and San Francisco are the darkest as these cities not only have high populations but are also very diverse.

These three maps show the populations percentages by US Counties for three different groups, "Asian", "Black", and "Other". By using color schemes on these maps to show ranges of population densities we can effectively visualize data such as this data taken from the 2000 US Census. The ArcMap program provides a user interface with which to combine maps with data. This is one example of the practical uses of GIS. With these maps we can more easily make conclusions about the data from the 2000 US Census than we could have with only the data tables themselves. This census map series has shown me the possibilities and applications of GIS. There is vast amounts of data easily accessible through the internet such as the census information that can be interpreted through the use of GIS.