| Rank | Country | Sex ratio |
180 | Congo, Republic of the | at birth: 1.03 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 0.99 male(s)/female 65 years and over: 0.7 male(s)/female total population: 0.99 male(s)/female (2009 est.) |
83 | Cook Islands | at birth: 1.05 male(s)/female under 15 years: 1.13 male(s)/female 15-64 years: 1.06 male(s)/female 65 years and over: 0.97 male(s)/female total population: 1.07 male(s)/female (2009 est.) |
| Coral Sea Islands | void |
84 | Costa Rica | 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: 0.86 male(s)/female total population: 1.02 male(s)/female (2009 est.) |
181 | Cote d'Ivoire | at birth: 1.03 male(s)/female under 15 years: 1.02 male(s)/female 15-64 years: 1.04 male(s)/female 65 years and over: 1 male(s)/female total population: 1.03 male(s)/female (2009 est.) |
36 | Croatia | at birth: 1.06 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 0.99 male(s)/female 65 years and over: 0.64 male(s)/female total population: 0.93 male(s)/female (2009 est.) |
37 | Cuba | at birth: 1.06 male(s)/female under 15 years: 1.06 male(s)/female 15-64 years: 1 male(s)/female 65 years and over: 0.83 male(s)/female total population: 0.99 male(s)/female (2009 est.) |
85 | Cyprus | at birth: 1.05 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 1.03 male(s)/female 65 years and over: 0.78 male(s)/female total population: 1 male(s)/female (2009 est.) |
38 | Czech Republic | at birth: 1.06 male(s)/female under 15 years: 1.06 male(s)/female 15-64 years: 1.01 male(s)/female 65 years and over: 0.65 male(s)/female total population: 0.95 male(s)/female (2009 est.) |
39 | Denmark | at birth: 1.06 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 1.01 male(s)/female 65 years and over: 0.78 male(s)/female total population: 0.98 male(s)/female (2009 est.) |
| Dhekelia | void |
182 | Djibouti | at birth: 1.03 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 1.07 male(s)/female 65 years and over: 1.01 male(s)/female total population: 1.04 male(s)/female (2009 est.) |
86 | Dominica | 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: 0.76 male(s)/female total population: 1.02 male(s)/female (2009 est.) |
160 | Dominican Republic | at birth: 1.04 male(s)/female under 15 years: 1.04 male(s)/female 15-64 years: 1.04 male(s)/female 65 years and over: 0.86 male(s)/female total population: 1.03 male(s)/female (2009 est.) |