The Migration Policy Institute has a nice tool to get quick data (2009 ACS data) on foreign-born in the US, state by state.
You click on a state, and then get basic information, together with links on topics such as Population, Place of Origin, Citizenship Status, Gender and Age, Race and Hispanic Origin, Household, Domestic and International Migration. Children in Immigrant Families, Detailed Tables (Here is the Florida Detailed Table).
An example of some data on California, putting it in the national context:
The foreign-born population (or immigrants; we use these terms interchangeably) of California changed by 12.2 percent between 2000 and 2009.
Between 2000 and 2009, the foreign-born population in California changed from 8,864,255 to 9,946,758, representing a change of 12.2 percent. In comparison, the foreign-born population changed from 6,458,825 to 8,864,255 between 1990 and 2000, a difference of 37.2 percent.
At the national level, the foreign-born population increased from 19,767,316 to 31,107,889 between 1990 and 2000, representing a change of 57.4 percent, and grew from 31,107,889 to 38,517,234 ( 23.8 percent) between 2000 and 2009.
In 2009, the foreign born represented 26.9 percent of California’s total population.
In 2009, 26.9 percent of California’s total population were immigrants, compared to 26.2 percent in 2000 and 21.7 percent in 1990.
At the national level, the foreign-born population represented 12.5 percent of the total population in 2009, compared to 11.1 percent in 2000 and 7.9 percent in 1990.
Of the total immigrant population in California, 26.5 percent entered during the 1990s, and 24.9 percent entered in 2000 or later.
Of the foreign-born population resident in California in 2009, 23.4 percent entered the country prior to 1980, 25.2 percent between 1980 and 1989, 26.5 percent between 1990 and 1999, and 24.9 percent in 2000 or later.
This kind of information may be helpful in thinking about the long term challenges facing courts and access institutions. Remember that it is not just a matter of language, but also a matter of culture, and understanding of how to interact with US institutions.