| Rank | Country | Median age |
16 | Bulgaria | total: 41.1 years male: 38.9 years female: 43.4 years (2008 est.) |
211 | Burkina Faso | total: 16.7 years male: 16.5 years female: 16.9 years (2008 est.) |
106 | Burma | total: 27.8 years male: 27.2 years female: 28.4 years (2008 est.) |
212 | Burundi | total: 16.7 years male: 16.4 years female: 17 years (2008 est.) |
148 | Cambodia | total: 21.7 years male: 21 years female: 22.5 years (2008 est.) |
177 | Cameroon | total: 19 years male: 18.9 years female: 19.2 years (2008 est.) |
24 | Canada | total: 40.1 years male: 39 years female: 41.2 years (2008 est.) |
164 | Cape Verde | total: 20.6 years male: 19.9 years female: 21.5 years (2008 est.) |
45 | Cayman Islands | total: 37.8 years male: 37.4 years female: 38.2 years (2008 est.) |
182 | Central African Republic | total: 18.7 years male: 18.3 years female: 19 years (2008 est.) |
215 | Chad | total: 16.4 years male: 15.2 years female: 17.5 years (2008 est.) |
81 | Chile | total: 31.1 years male: 30.1 years female: 32.1 years (2008 est.) |
69 | China | total: 33.6 years male: 33.1 years female: 34.2 years (2008 est.) |
| Christmas Island | void |
| Clipperton Island | void |
| Cocos (Keeling) Islands | void |
113 | Colombia | total: 26.8 years male: 25.9 years female: 27.8 years (2008 est.) |
183 | Comoros | total: 18.7 years male: 18.5 years female: 19 years (2008 est.) |
217 | Congo, Democratic Republic of the | total: 16.3 years male: 16.1 years female: 16.5 years (2008 est.) |
213 | Congo, Republic of the | total: 16.7 years male: 16.5 years female: 17 years (2008 est.) |
121 | Cook Islands | total: 25.3 years male: 24.7 years female: 25.9 years (2001 census) |
| Coral Sea Islands | void |
111 | Costa Rica | total: 27.1 years male: 26.7 years female: 27.6 years (2008 est.) |
172 | Cote d'Ivoire | total: 19.4 years male: 19.6 years female: 19.1 years (2008 est.) |
18 | Croatia | total: 40.8 years male: 38.9 years female: 42.6 years (2008 est.) |
53 | Cuba | total: 36.8 years male: 36.1 years female: 37.5 years (2008 est.) |
62 | Cyprus | total: 35.3 years male: 34.3 years female: 36.4 years (2008 est.) |
29 | Czech Republic | total: 39.8 years male: 38.2 years female: 41.6 years (2008 est.) |
22 | Denmark | total: 40.3 years male: 39.4 years female: 41.2 years (2008 est.) |
| Dhekelia | void |
193 | Djibouti | total: 18.2 years male: 18.6 years female: 17.7 years (2008 est.) |
90 | Dominica | total: 29.4 years male: 29 years female: 29.8 years (2008 est.) |
127 | Dominican Republic | total: 24.7 years male: 24.6 years female: 24.8 years (2008 est.) |
132 | Ecuador | total: 24.2 years male: 23.7 years female: 24.7 years (2008 est.) |
130 | Egypt | total: 24.5 years male: 24.1 years female: 24.9 years (2008 est.) |
146 | El Salvador | total: 22.2 years male: 21.1 years female: 23.4 years (2008 est.) |
178 | Equatorial Guinea | total: 18.9 years male: 18.3 years female: 19.5 years (2008 est.) |