Among these top 25 counties, Texas tops the list with 200,719 detainees in total who were housed across 6 counties, followed by California with 165,367 detainees who have been held at facilities in 4 counties. Together these 10 counties in just two states accounted for three out of every ten immigrants since FY 2001 who were detained at the time of their final court hearing or who are currently detained.

The line-up of counties housing the most detainees has also seen changes over this period. Once President Trump was inaugurated the proportion never detained fell sharply from 72 percent in December of 2016 to 47 percent in February 2017, while those detained jumped up.

In FY 2017, ranked first with the most detainees was Stewart County, Georgia (Stewart Detention Center), followed in second place by Pinal County, Arizona (Eloy Detention Center). Pierce County, Washington (Northwest Detention Center) had climbed to third place in these rankings last year.

To examine more details county-by-county, select "Immigrant County" after going to:

http://trac.syr.edu/phptools/immigration/nta/

To read the full report go to:

http://trac.syr.edu/immigration/reports/504/

In addition, many of TRAC's free query tools - which track the court's overall backlog, new DHS filings, court dispositions and much more - have now been updated through February 2018. For an index to the full list of TRAC's immigration tools go to:

http://trac.syr.edu/imm/tools/

If you want to be sure to receive notifications whenever updated data become available, sign up at:

http://tracfed.syr.edu/cgi-bin/tracuser.pl?pub=1&list=imm

or follow us on Twitter @tracreports or like us on Facebook:

http://facebook.com/tracreports

TRAC is self-supporting and depends on foundation grants, individual contributions and subscription fees for the funding needed to obtain, analyze and publish the data we collect on the activities of the U.S. federal government. To help support TRAC's ongoing efforts, go to:

http://trac.syr.edu/cgi-bin/sponsor/sponsor.pl