| Rank | Country | Median age |
76 | British Virgin Islands | total: 32.9 years male: 32.9 years female: 32.8 years (2011 est.) |
115 | Brunei | total: 28.4 years male: 28.3 years female: 28.6 years (2011 est.) |
17 | Bulgaria | total: 41.9 years male: 39.6 years female: 44 years (2011 est.) |
217 | Burkina Faso | total: 16.9 years male: 16.7 years female: 17.1 years (2011 est.) |
122 | Burma | total: 26.9 years male: 26.3 years female: 27.5 years (2011 est.) |
218 | Burundi | total: 16.9 years male: 16.6 years female: 17.2 years (2011 est.) |
153 | Cambodia | total: 22.9 years male: 22.2 years female: 23.7 years (2011 est.) |
188 | Cameroon | total: 19.4 years male: 19.3 years female: 19.6 years (2011 est.) |
23 | Canada | total: 41 years male: 39.8 years female: 42.1 years (2011 est.) |
157 | Cape Verde | total: 22.7 years male: 21.9 years female: 23.5 years (2011 est.) |
47 | Cayman Islands | total: 38.7 years male: 38.2 years female: 39.2 years (2011 est.) |
191 | Central African Republic | total: 19.2 years male: 18.8 years female: 19.6 years (2011 est.) |
219 | Chad | total: 16.8 years male: 15.6 years female: 17.9 years (2011 est.) |
82 | Chile | total: 32.1 years male: 31.1 years female: 33.1 years (2011 est.) |
66 | China | total: 35.5 years male: 34.9 years female: 36.2 years (2011 est.) |
| Christmas Island | void |
| Clipperton Island | void |
| Cocos (Keeling) Islands | void |