Turks and Caicos Islands: 13.69 migrant(s)/1,000 population (2001 est.)

Tuvalu:
0 migrant(s)/1,000 population (2001 est.)

Uganda:
-0.29 migrant(s)/1,000 population (2001 est.)

note: according to the UNHCR, by the end of 1999, Uganda was host to 218,000 refugees from a number of neighboring countries, including: Sudan 200,600, Rwanda 8,000, and Democratic Republic of the Congo 8,000

Ukraine:
-0.63 migrant(s)/1,000 population (2001 est.)

United Arab Emirates:
1.61 migrant(s)/1,000 population (2001 est.)

United Kingdom:
1.07 migrant(s)/1,000 population (2001 est.)

United States:
3.5 migrant(s)/1,000 population (2001 est.)

Uruguay:
-0.51 migrant(s)/1,000 population (2001 est.)

Uzbekistan:
-2.06 migrant(s)/1,000 population (2001 est.)