| Rank | Country | Sex ratio |
65 | Afghanistan |  at birth: 1.05 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 1.05 male(s)/female 65 years and over: 0.94 male(s)/female total population: 1.05 male(s)/female (2008 est.) |
| Akrotiri | void |
6 | Albania |  at birth: 1.1 male(s)/female under 15 years: 1.1 male(s)/female 15-64 years: 1.05 male(s)/female 65 years and over: 0.87 male(s)/female total population: 1.04 male(s)/female (2008 est.) |
66 | Algeria |  at birth: 1.05 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 1.02 male(s)/female 65 years and over: 0.86 male(s)/female total population: 1.01 male(s)/female (2008 est.) |
30 | American Samoa |  at birth: 1.06 male(s)/female under 15 years: 1.08 male(s)/female 15-64 years: 1.09 male(s)/female 65 years and over: 0.55 male(s)/female total population: 1.06 male(s)/female (2008 est.) |
14 | Andorra |  at birth: 1.07 male(s)/female under 15 years: 1.09 male(s)/female 15-64 years: 1.1 male(s)/female 65 years and over: 0.97 male(s)/female total population: 1.08 male(s)/female (2008 est.) |
67 | Angola |  at birth: 1.05 male(s)/female under 15 years: 1.02 male(s)/female 15-64 years: 1.03 male(s)/female 65 years and over: 0.79 male(s)/female total population: 1.02 male(s)/female (2008 est.) |
161 | Anguilla |  at birth: 1.03 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 0.92 male(s)/female 65 years and over: 0.91 male(s)/female total population: 0.95 male(s)/female (2008 est.) |
| Antarctica | void |
68 | Antigua and Barbuda |  at birth: 1.05 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 1.02 male(s)/female 65 years and over: 0.58 male(s)/female total population: 1 male(s)/female (2008 est.) |
| Arctic Ocean | void |
69 | Argentina |  at birth: 1.05 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 1 male(s)/female 65 years and over: 0.7 male(s)/female total population: 0.97 male(s)/female (2008 est.) |
1 | Armenia |  at birth: 1.15 male(s)/female under 15 years: 1.14 male(s)/female 15-64 years: 0.88 male(s)/female 65 years and over: 0.65 male(s)/female total population: 0.89 male(s)/female (2008 est.) |
208 | Aruba |  at birth: 1.02 male(s)/female under 15 years: 1.02 male(s)/female 15-64 years: 0.92 male(s)/female 65 years and over: 0.66 male(s)/female total population: 0.91 male(s)/female (2008 est.) |
| Ashmore and Cartier Islands | void |
| Atlantic Ocean | void |
70 | Australia |  at birth: 1.05 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 1.02 male(s)/female 65 years and over: 0.8 male(s)/female total population: 0.99 male(s)/female (2008 est.) |
71 | Austria |  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: 0.7 male(s)/female total population: 0.95 male(s)/female (2008 est.) |
2 | Azerbaijan |  at birth: 1.14 male(s)/female under 15 years: 1.12 male(s)/female 15-64 years: 0.96 male(s)/female 65 years and over: 0.59 male(s)/female total population: 0.97 male(s)/female (2008 est.) |
209 | Bahamas, The |  at birth: 1.02 male(s)/female under 15 years: 1 male(s)/female 15-64 years: 0.97 male(s)/female 65 years and over: 0.69 male(s)/female total population: 0.96 male(s)/female (2008 est.) |
162 | Bahrain |  at birth: 1.03 male(s)/female under 15 years: 1.02 male(s)/female 15-64 years: 1.36 male(s)/female 65 years and over: 1.1 male(s)/female total population: 1.25 male(s)/female (2008 est.) |