-0.02 migrant(s)/1,000 population country comparison to the world: 86 note: repatriation of Ethiopian refugees residing in Sudan is expected to continue for several years; some Sudanese, Somali, and Eritrean refugees, who fled to Ethiopia from the fighting or famine in their own countries, continue to return to their homes (2009 est.)
Urbanization:
urban population: 17% of total population (2008)
rate of urbanization: 4.3% annual rate of change (2005-10 est.)
Sex ratio:
at birth: 1.03 male(s)/female
under 15 years: 1 male(s)/female
15-64 years: 0.96 male(s)/female
65 years and over: 0.75 male(s)/female
total population: 0.97 male(s)/female (2009 est.)