Over the decade from 2000 – 2009 4.1 million Americans moved to Texas with 3.3 million going to other states.  Largest number from California, then Louisiana probably because of Hurricane Katrina.  Then Illinois, Florida, New York, Michigan and lesser amounts from other states.  During those years a few more Texans moved to Montana, DC and Colorado, but after 2009 then more moving to Texas from Colorado.  INTERESTING!