The purpose of this project is to display the United States' population that were born from foreign countries. The reason is to identify where immigrants came from and how many immigrants migrated to the United States every decade. They created this website because they wanted to show the demographic statistics of immigrants in every US county.

Upon the entering the interactive website, you are given the map of the United States in the center between every continent geographically. Foreign countries with density circles represent the foreign country the immigrant came from. The focus is on the United States with different shade of green to blue highlighted counties. Each county has data that was collected from where the user can pick and view in a small window of the selected county.

On the right side, there is a bar graph of the list of countries corresponding to year and/or county selection, total foreign-born of the year and percentage, a search bar for county and a description of the population from the decade chosen.

Below the maps are legends of the size of the population circles, color of people per square mile, and population over time from 1850 to 2010. The user can change the year to a specific decade which affects the color of counties.

The data was collected by Minnesota Population Center and National Historical Geographic Information System. County boundaries are from the Newberry Library's Atlas of Historical County Boundaries.

One example this data was made for are politicians to view the trends of foreign-born immigrants migration. Politicians can target on specific counties with higher density of immigrants. This information can be used for what piques immigrant's interest to travel to the United States.

Another example are foreigners who seek to travel to the United States where the same foreign-born immigrants travel. Higher percentage of foreign immigrants from the same country are likely to migrate to the US county. Some foreign-born immigrants spread to other counties, thus an increase percentage of immigrants. This information can be used for where foreign-born immigrants will likely travel to in the United States for future decades.

Some questions people may want to ask is:

1. Where do most immigrants come from in year X?
2. What is the difference in the migration in certain decades?
3. What percent of the population are foreign born?
4. What countries are foreign born immigrants from in a specific county?
5. Where do foreign born immigrants travel to in the United States?

The user can select a country's circle, select a decade, select a county, or search a specific county to solve their questions. The map, mini-map and population over time are interactive for the user to change the data. Since there are multiple countries connected to the county, the mini-map appears and zooms in the selected county. The countries in the data point towards the selected county. Time plays a factor in the data, so the user can select a decade to see the change in the data.

The site gives a Population Over Time reactive timeline between 1850 to 2010. The user can select a specific decade that will affect the United States' counties, the country's circle size and what countries or continent have data. Some data may not specify the country so the name will be the name of the continent and may include southern, northern, etc.

In the timeline, there is a green and blue stacked area representing the Total Foreign-Born and the selected country.

For an example of the reactive, Mexico is selected in comparison between 1980 and 1990. There are other countries or continent shown within the decade.

Upon selecting a county, such as Du Page, Illinois, all the country has a curved line point towards Du Page county. There is a change in the Population Over Time stacked area of the Du Page county population. The bar graph of the population changes in descending order. A new mini map appears for the user to see. It shows the whole Du Page county and centered.

The mini map gives the county and state depending on where the user clicks in the United States. The user can also click on nearby counties to view the county data and change the data in the United States and other countries.

The zoom in the mini map is appropriate and can allow the user to zoom in and out by a few scrolls.

The user can search up a county, state or district. Five counties or states and three districts are given.

There is no zoom feature on the main map of the United States. This is difficult for the user to accurately select the county they are looking for. They may not also be aware of the mini-map to exist until the user clicks on a county in the United States.

There is no outline of the states in the United States and countries. This may be somewhat difficult for the user to know what state they want to look at. This may be a slight issue for unspecified country data if the population density circle is placed in a country. I suggest to have a circle next to the continent that the data is from the continent.

When the user hovers over a population circle of a country there is no title of the name or the unspecified country. Only until the user selects the circle the bar graph highlights the name of the data.

If no county or country selection, certain areas of a few country's circle in the south of North America (e.g. Mexico, Jamaica and Cuba), the Population Over Time timeline reactive may change to the closest tick of the decade.

Below shows my mouse click on Mexico and the closest decade, 1850, is chosen as well.