The World: Population - Age 25-29 (2018) - Top 100+
| Rank | Country | Population | Year | |
|---|---|---|---|---|
| 101. | Jordan | 583,790 | 2018 | |
| 102. | Papua New Guinea | 576,909 | 2018 | |
| 103. | Kyrgyzstan | 575,658 | 2018 | |
| 104. | Greece | 572,565 | 2018 | |
| 105. | Eritrea | 561,253 | 2018 | |
| 106. | El Salvador | 549,837 | 2018 | |
| 107. | Turkmenistan | 532,740 | 2018 | |
| 108. | Austria | 515,410 | 2018 | |
| 109. | Switzerland | 498,786 | 2018 | |
| 110. | Sierra Leone | 491,215 | 2018 | |
| 111. | Central African Republic | 483,622 | 2018 | |
| 112. | Serbia | 443,310 | 2018 | |
| 113. | Costa Rica | 430,502 | 2018 | |
| 114. | Hong Kong | 426,965 | 2018 | |
| 115. | Republic of Congo | 409,712 | 2018 | |
| 116. | Bulgaria | 401,890 | 2018 | |
| 117. | Slovakia | 382,940 | 2018 | |
| 118. | Oman | 366,556 | 2018 | |
| 119. | Denmark | 363,375 | 2018 | |
| 120. | Lebanon | 355,880 | 2018 | |
| 121. | Georgia | 346,892 | 2018 | |
| 122. | Kuwait | 335,932 | 2018 | |
| 123. | Finland | 331,444 | 2018 | |
| 124. | Qatar | 326,050 | 2018 | |
| 125. | Mongolia | 322,703 | 2018 | |
| 126. | Norway | 322,330 | 2018 | |
| 127. | Bosnia and Herzegovina | 318,363 | 2018 | |
| 128. | Mauritania | 311,922 | 2018 | |
| 129. | New Zealand | 310,513 | 2018 | |
| 130. | Ireland | 307,420 | 2018 | |
| 131. | Armenia | 303,163 | 2018 | |
| 132. | Liberia | 302,862 | 2018 | |
| 133. | Jamaica | 301,607 | 2018 | |
| 134. | Panama | 297,593 | 2018 | |
| 135. | Albania | 290,737 | 2018 | |
| 136. | West Bank | 278,465 | 2018 | |
| 137. | Croatia | 271,706 | 2018 | |
| 138. | Moldova | 268,802 | 2018 | |
| 139. | Puerto Rico | 263,391 | 2018 | |
| 140. | Lithuania | 257,149 | 2018 | |
| 141. | Uruguay | 254,526 | 2018 | |
| 142. | Namibia | 235,050 | 2018 | |
| 143. | Botswana | 227,299 | 2018 | |
| 144. | The Gambia | 187,422 | 2018 | |
| 145. | Lesotho | 185,764 | 2018 | |
| 146. | Gaza Strip | 181,180 | 2018 | |
| 147. | Kosovo | 170,440 | 2018 | |
| 148. | Latvia | 155,880 | 2018 | |
| 149. | Guinea-Bissau | 151,654 | 2018 | |
| 150. | Macedonia | 150,660 | 2018 | |
| 151. | Swaziland | 149,632 | 2018 | |
| 152. | Gabon | 146,287 | 2018 | |
| 153. | Bahrain | 146,268 | 2018 | |
| 154. | East Timor | 127,688 | 2018 | |
| 155. | Slovenia | 110,839 | 2018 | |
| 156. | Cyprus | 108,231 | 2018 | |
| 157. | Mauritius | 106,478 | 2018 | |
| 158. | Djibouti | 92,231 | 2018 | |
| 159. | Trinidad and Tobago | 83,537 | 2018 | |
| 160. | Estonia | 82,937 | 2018 | |
| 161. | Bhutan | 77,110 | 2018 | |
| 162. | Fiji | 72,573 | 2018 | |
| 163. | Guyana | 62,955 | 2018 | |
| 164. | Equatorial Guinea | 62,387 | 2018 | |
| 165. | Comoros | 61,910 | 2018 | |
| 166. | Solomon Islands | 55,456 | 2018 | |
| 167. | Cape Verde | 54,353 | 2018 | |
| 168. | Western Sahara | 51,133 | 2018 | |
| 169. | Maldives | 49,782 | 2018 | |
| 170. | Suriname | 49,150 | 2018 | |
| 171. | Macau | 48,595 | 2018 | |
| 172. | Brunei | 41,890 | 2018 | |
| 173. | Montenegro | 41,213 | 2018 | |
| 174. | Luxembourg | 37,302 | 2018 | |
| 175. | Belize | 33,339 | 2018 | |
| 176. | Malta | 28,248 | 2018 | |
| 177. | The Bahamas | 27,721 | 2018 | |
| 178. | French Polynesia | 24,477 | 2018 | |
| 179. | Iceland | 23,761 | 2018 | |
| 180. | New Caledonia | 23,137 | 2018 | |
| 181. | Vanuatu | 22,836 | 2018 | |
| 182. | Barbados | 21,029 | 2018 | |
| 183. | Samoa | 17,274 | 2018 | |
| 184. | Guam | 15,420 | 2018 | |
| 185. | Sao Tome and Principe | 14,788 | 2018 | |
| 186. | Mayotte | 13,385 | 2018 | |
| 187. | Saint Lucia | 11,828 | 2018 | |
| 188. | Netherlands Antilles | 10,905 | 2018 | |
| 189. | Kiribati | 10,215 | 2018 | |
| 190. | Channel Islands | 8,751 | 2018 | |
| 191. | Grenada | 8,669 | 2018 | |
| 192. | Federated States of Micronesia | 8,512 | 2018 | |
| 193. | Tonga | 7,911 | 2018 | |
| 194. | Aruba | 7,648 | 2018 | |
| 195. | Saint Vincent and the Grenadines | 7,592 | 2018 | |
| 196. | Seychelles | 7,121 | 2018 | |
| 197. | Antigua and Barbuda | 7,093 | 2018 | |
| 198. | American Samoa | 6,614 | 2018 | |
| 199. | U.S. Virgin Islands | 6,350 | 2018 | |
| 200. | Dominica | 5,977 | 2018 |
