Italy
at birth: 1.07 male(s)/female
under 15 years: 1.06 male(s)/female
15-64 years: 1.02 male(s)/female
65 years and over: 0.72 male(s)/female
total population: 0.96 male(s)/female (2006 est.)

Jamaica
at birth: 1.05 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 0.97 male(s)/female
65 years and over: 0.82 male(s)/female
total population: 0.98 male(s)/female (2006 est.)

Japan
at birth: 1.05 male(s)/female
under 15 years: 1.05 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 0.73 male(s)/female
total population: 0.95 male(s)/female (2006 est.)

Jersey
at birth: 1.08 male(s)/female
under 15 years: 1.08 male(s)/female
15-64 years: 0.99 male(s)/female
65 years and over: 0.79 male(s)/female
total population: 0.97 male(s)/female (2006 est.)

Jordan
at birth: 1.06 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 1.15 male(s)/female
65 years and over: 0.95 male(s)/female
total population: 1.1 male(s)/female (2006 est.)

Kazakhstan
at birth: 1.06 male(s)/female
under 15 years: 1.04 male(s)/female
15-64 years: 0.96 male(s)/female
65 years and over: 0.55 male(s)/female
total population: 0.93 male(s)/female (2006 est.)

Kenya
at birth: 1.02 male(s)/female
under 15 years: 1.02 male(s)/female
15-64 years: 1.01 male(s)/female
65 years and over: 0.83 male(s)/female
total population: 1.01 male(s)/female (2006 est.)

Kiribati
at birth: 1.05 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.75 male(s)/female
total population: 0.99 male(s)/female (2006 est.)

Korea, North
at birth: 1.05 male(s)/female
under 15 years: 1.03 male(s)/female
15-64 years: 0.98 male(s)/female
65 years and over: 0.54 male(s)/female
total population: 0.94 male(s)/female (2006 est.)

Korea, South
at birth: 1.08 male(s)/female
under 15 years: 1.11 male(s)/female
15-64 years: 1.04 male(s)/female
65 years and over: 0.68 male(s)/female
total population: 1.01 male(s)/female (2006 est.)