| Rank | Country | Sex ratio |
178 | Cape Verde | at birth: 1.03 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 0.94 male(s)/female 65 years and over: 0.61 male(s)/female total population: 0.94 male(s)/female (2011 est.) |
221 | Cayman Islands | at birth: 1.016 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 0.95 male(s)/female 65 years and over: 0.89 male(s)/female total population: 0.96 male(s)/female (2011 est.) |
179 | Central African Republic | at birth: 1.03 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 0.98 male(s)/female 65 years and over: 0.67 male(s)/female total population: 0.98 male(s)/female (2011 est.) |
158 | Chad | at birth: 1.04 male(s)/female under 15 years: 1.03 male(s)/female 15-64 years: 0.85 male(s)/female 65 years and over: 0.73 male(s)/female total population: 0.92 male(s)/female (2011 est.) |
95 | Chile | 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: 0.72 male(s)/female total population: 0.98 male(s)/female (2011 est.) |
2 | China | at birth: 1.133 male(s)/female under 15 years: 1.17 male(s)/female 15-64 years: 1.06 male(s)/female 65 years and over: 0.93 male(s)/female total population: 1.06 male(s)/female (2011 est.) |
| Christmas Island | NA (2009 est.) |
| Clipperton Island | void |
| Cocos (Keeling) Islands | void |
42 | Colombia | at birth: 1.06 male(s)/female under 15 years: 1.05 male(s)/female 15-64 years: 0.97 male(s)/female 65 years and over: 0.74 male(s)/female total population: 0.98 male(s)/female (2011 est.) |
180 | Comoros | at birth: 1.03 male(s)/female under 15 years: 1.01 male(s)/female 15-64 years: 0.98 male(s)/female 65 years and over: 0.83 male(s)/female total population: 0.98 male(s)/female (2011 est.) |
181 | Congo, Democratic 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: 0.69 male(s)/female total population: 0.99 male(s)/female (2011 est.) |