The table below shows the latest figures for numbers of Cochrane Members and Supporters, listed by country. Numbers are updated each quarter and archived by year.
- Cochrane Members - Cochrane’s core contributors who have earned membership
- Cochrane Supporters - our global community of Cochrane Account holders who are actively engaged (have logged in to their account within the last 2 years)
Why have the member and supporter numbers in my country changed? People may have relocated and changed their country of residence; people’s level of engagement with Cochrane may have changed.
Why is there no historic data for members and supporters in my country? Data will be shown from the moment that someone signs up in a geographic area, or changes their country of residence. We welcome new members from around the world all the time. There are now Cochrane Account holders in nearly every country across the globe!
More detailed information about contributor activity is published annually:
Cochrane Geographic Group annual activity reports.
If you have any queries about the information available on these pages, please contact support@cochrane.org.
Annual summary of Member and Supporter numbers
Member and Supporter numbers 2021
| Q1 2021 | Q2 2021 | Q3 2021 | Q4 2021 | Grand total |
|||||
| Members | Supporters | Members | Supporters | Members | Supporters | Members | Supporters | ||
| Total | 12191 | 93016 | 12584 | 97573 | 12964 | 99063 | 13133 | 102929 | 115962 |
| Afghanistan | 1 | 32 | 1 | 33 | 1 | 34 | 1 | 41 | 42 |
| Albania | 1 | 36 | 1 | 29 | 1 | 28 | 1 | 28 | 29 |
| Algeria | 2 | 96 | 2 | 95 | 1 | 93 | 2 | 91 | 93 |
| American Samoa | 10 | 9 | 9 | 11 | 11 | ||||
| Andorra | 8 | 8 | 8 | 8 | 8 | ||||
| Angola | 13 | 14 | 13 | 20 | 20 | ||||
| Anguilla | 1 | ||||||||
| Antarctica | 2 | 2 | 2 | 4 | 4 | ||||
| Antigua and Barbuda | 3 | 3 | 3 | 3 | 3 | ||||
| Argentina | 73 | 641 | 72 | 657 | 72 | 652 | 76 | 679 | 755 |
| Armenia | 1 | 36 | 1 | 36 | 1 | 35 | 1 | 32 | 33 |
| Aruba | 3 | 3 | 3 | 4 | 4 | ||||
| Australia | 1286 | 5717 | 1313 | 5670 | 1337 | 5949 | 1344 | 5981 | 7325 |
| Austria | 66 | 334 | 70 | 355 | 70 | 359 | 72 | 382 | 454 |
| Azerbaijan | 16 | 15 | 15 | 17 | 17 | ||||
| Bahamas | 5 | 5 | 5 | 6 | 6 | ||||
| Bahrain | 17 | 30 | 17 | 30 | 17 | 30 | 17 | 31 | 48 |
| Bangladesh | 6 | 202 | 7 | 210 | 7 | 233 | 10 | 232 | 242 |
| Barbados | 4 | 10 | 5 | 12 | 5 | 15 | 5 | 14 | 19 |
| Belarus | 2 | 88 | 2 | 91 | 3 | 73 | 3 | 60 | 63 |
| Belgium | 104 | 887 | 114 | 943 | 114 | 898 | 115 | 911 | 1026 |
| Belize | 4 | 4 | 4 | 7 | 7 | ||||
| Benin | 13 | 12 | 14 | 15 | 15 | ||||
| Bermuda | 8 | 8 | 8 | 8 | 8 | ||||
| Bhutan | 8 | 9 | 11 | 11 | 11 | ||||
| Bolivia | 1 | 121 | 1 | 133 | 1 | 139 | 1 | 135 | 136 |
| Bosnia and Herzegovina | 29 | 42 | 32 | 43 | 37 | 40 | 38 | 45 | 83 |
| Botswana | 1 | 18 | 1 | 18 | 1 | 18 | 1 | 19 | 20 |
| Brazil | 347 | 3989 | 339 | 4311 | 340 | 4419 | 342 | 4512 | 4854 |
| Brunei Darussalam | 1 | 14 | 1 | 13 | 1 | 25 | 28 | 28 | |
| Bulgaria | 3 | 36 | 3 | 34 | 3 | 32 | 3 | 29 | 32 |
| Burkina Faso | 24 | 23 | 21 | 22 | 22 | ||||
| Burundi | 2 | 3 | 2 | 2 | 2 | ||||
| Cambodia | 17 | 19 | 18 | 18 | 18 | ||||
| Cameroon | 10 | 99 | 10 | 97 | 10 | 85 | 12 | 77 | 89 |
| Canada | 810 | 4636 | 833 | 4827 | 849 | 4902 | 863 | 5116 | 5979 |
| Cape Verde | 4 | 6 | 6 | 6 | 6 | ||||
| Cayman Islands | 1 | 1 | 1 | 2 | 2 | ||||
| Central African Republic | 2 | 2 | 1 | 1 | 1 | ||||
| Chad | 3 | 3 | 3 | 4 | 4 | ||||
| Channel Islands | 1 | 1 | 1 | 1 | 1 | 1 | 2 | ||
| Chile | 80 | 932 | 81 | 946 | 83 | 941 | 76 | 957 | 1033 |
| China | 508 | 4760 | 541 | 5202 | 559 | 5684 | 583 | 6173 | 6756 |
| Colombia | 91 | 1386 | 95 | 1571 | 99 | 1662 | 98 | 1766 | 1864 |
| Congo | 1 | 3 | 4 | 4 | 4 | ||||
| Congo, Democratic Republic of the | 24 | 23 | 19 | 19 | 19 | ||||
| Costa Rica | 6 | 71 | 6 | 72 | 6 | 72 | 6 | 73 | 79 |
| Côte d'Ivoire | 9 | 7 | 9 | 11 | 11 | ||||
| Croatia | 58 | 170 | 66 | 181 | 77 | 175 | 73 | 174 | 247 |
| Cuba | 9 | 55 | 9 | 54 | 9 | 58 | 10 | 64 | 74 |
| Curaçao | 1 | 1 | |||||||
| Cyprus | 4 | 49 | 3 | 50 | 4 | 54 | 4 | 53 | 57 |
| Czech Republic | 18 | 80 | 19 | 83 | 24 | 76 | 24 | 78 | 102 |
| Denmark | 201 | 677 | 202 | 713 | 206 | 707 | 210 | 717 | 927 |
| Djibouti | 1 | 1 | 1 | ||||||
| Dominica | 2 | 2 | 3 | 4 | 4 | ||||
| Dominican Republic | 2 | 59 | 2 | 61 | 2 | 62 | 3 | 59 | 62 |
| Ecuador | 11 | 656 | 11 | 911 | 13 | 920 | 13 | 936 | 949 |
| Egypt | 46 | 1864 | 49 | 1928 | 48 | 1907 | 50 | 1868 | 1918 |
| El Salvador | 1 | 74 | 1 | 68 | 1 | 68 | 1 | 63 | 64 |
| Eritrea | 1 | 1 | 1 | 1 | 1 | ||||
| Estonia | 1 | 50 | 1 | 50 | 1 | 52 | 1 | 50 | 51 |
| Eswatini | 4 | 5 | 1 | 5 | 1 | 10 | 11 | ||
| Ethiopia | 3 | 274 | 3 | 277 | 2 | 287 | 2 | 298 | 300 |
| Faroe Islands | 1 | 1 | 1 | 1 | 1 | ||||
| Fiji | 20 | 16 | 16 | 16 | 16 | ||||
| Finland | 57 | 150 | 57 | 163 | 60 | 161 | 57 | 166 | 223 |
| France | 172 | 1124 | 185 | 1126 | 191 | 1131 | 192 | 1153 | 1345 |
| French Guiana | 1 | 1 | |||||||
| French Polynesia | 3 | 2 | 1 | 1 | 1 | ||||
| Gabon | 1 | 1 | 1 | 1 | 1 | ||||
| Gambia | 2 | 12 | 3 | 11 | 3 | 12 | 2 | 13 | 15 |
| Georgia | 36 | 33 | 31 | 33 | 33 | ||||
| Germany | 476 | 2885 | 490 | 3199 | 523 | 3257 | 533 | 3504 | 4037 |
| Ghana | 6 | 152 | 6 | 179 | 7 | 192 | 7 | 203 | 210 |
| Gibraltar | 3 | 3 | 6 | 7 | 7 | ||||
| Greece | 47 | 349 | 47 | 378 | 48 | 395 | 48 | 407 | 455 |
| Greenland | 3 | 3 | 2 | 2 | 2 | ||||
| Grenada | 4 | 4 | 3 | 3 | 3 | ||||
| Guadeloupe | 3 | 2 | |||||||
| Guam | 1 | 1 | 1 | 1 | 1 | ||||
| Guatemala | 2 | 75 | 2 | 85 | 1 | 88 | 1 | 89 | 90 |
| Guernsey | 2 | 2 | 1 | 1 | 1 | ||||
| Guinea | 13 | 13 | 14 | 14 | 14 | ||||
| Guinea-Bissau | 2 | 2 | 2 | 2 | 2 | ||||
| Guyana | 7 | 7 | 9 | 11 | 11 | ||||
| Haiti | 12 | 13 | 13 | 1 | 16 | 17 | |||
| Honduras | 29 | 33 | 37 | 32 | 32 | ||||
| Hong Kong | 41 | 485 | 39 | 492 | 44 | 493 | 44 | 516 | 560 |
| Hungary | 14 | 246 | 14 | 253 | 16 | 265 | 16 | 283 | 299 |
| Iceland | 9 | 8 | 7 | 6 | 6 | ||||
| India | 238 | 3520 | 269 | 3885 | 278 | 4023 | 287 | 4212 | 4499 |
| Indonesia | 15 | 1112 | 16 | 1190 | 16 | 1268 | 17 | 1369 | 1386 |
| Iran | 83 | 959 | 87 | 999 | 92 | 1015 | 97 | 1076 | 1173 |
| Iraq | 2 | 122 | 2 | 123 | 2 | 133 | 3 | 159 | 162 |
| Ireland | 233 | 1185 | 236 | 1258 | 244 | 1269 | 241 | 1320 | 1561 |
| Isle of Man | 4 | 3 | 3 | 3 | 3 | ||||
| Israel | 25 | 145 | 26 | 148 | 26 | 159 | 25 | 164 | 189 |
| Italy | 322 | 1465 | 340 | 1517 | 354 | 1530 | 361 | 1616 | 1977 |
| Jamaica | 10 | 17 | 10 | 19 | 10 | 17 | 10 | 19 | 29 |
| Japan | 209 | 925 | 207 | 948 | 207 | 991 | 204 | 1002 | 1206 |
| Jordan | 8 | 218 | 7 | 215 | 8 | 222 | 9 | 243 | 252 |
| Kazakhstan | 4 | 138 | 4 | 133 | 4 | 135 | 3 | 137 | 140 |
| Kenya | 16 | 203 | 17 | 223 | 18 | 215 | 19 | 218 | 237 |
| Kiribati | 2 | 1 | 1 | ||||||
| Korea, North | 2 | 2 | 2 | 2 | 2 | ||||
| Korea, South | 34 | 608 | 39 | 583 | 40 | 596 | 40 | 646 | 686 |
| Kosovo | 5 | 11 | 12 | 17 | 17 | ||||
| Kuwait | 1 | 46 | 1 | 48 | 1 | 47 | 1 | 49 | 50 |
| Kyrgyzstan | 34 | 30 | 27 | 30 | 30 | ||||
| Lao People's Democratic Republic | 3 | 2 | 2 | 2 | 2 | ||||
| Latvia | 1 | 25 | 1 | 25 | 1 | 23 | 25 | 25 | |
| Lebanon | 24 | 86 | 25 | 87 | 23 | 97 | 22 | 97 | 119 |
| Lesotho | 4 | 5 | 5 | 4 | 4 | ||||
| Liberia | 8 | 8 | 7 | 8 | 8 | ||||
| Libyan Arab Jamahiriya | 7 | 117 | 8 | 116 | 10 | 127 | 10 | 121 | 131 |
| Liechtenstein | 2 | 2 | 2 | 3 | 3 | ||||
| Lithuania | 87 | 1 | 89 | 1 | 91 | 1 | 86 | 87 | |
| Luxembourg | 2 | 17 | 2 | 19 | 2 | 21 | 2 | 22 | 24 |
| Macao | 19 | 22 | 22 | 28 | 28 | ||||
| Macedonia | 15 | 14 | 14 | 14 | 14 | ||||
| Madagascar | 8 | 8 | 7 | 9 | 9 | ||||
| Malawi | 8 | 47 | 8 | 47 | 8 | 48 | 8 | 52 | 60 |
| Malaysia | 155 | 934 | 157 | 983 | 167 | 1005 | 166 | 1021 | 1187 |
| Maldives | 12 | 1 | 9 | 1 | 10 | 1 | 13 | 14 | |
| Mali | 1 | 12 | 1 | 12 | 1 | 8 | 1 | 10 | 11 |
| Malta | 1 | 54 | 1 | 56 | 1 | 54 | 1 | 52 | 53 |
| Martinique | 1 | 1 | |||||||
| Mauritania | 3 | 3 | 3 | 3 | 3 | ||||
| Mauritius | 14 | 18 | 16 | 15 | 15 | ||||
| Mexico | 78 | 2020 | 84 | 2195 | 91 | 2237 | 92 | 2350 | 2442 |
| Micronesia | 2 | 2 | |||||||
| Moldova | 1 | 38 | 1 | 54 | 2 | 53 | 2 | 91 | 93 |
| Monaco | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 3 |
| Mongolia | 14 | 14 | 12 | 11 | 11 | ||||
| Montenegro | 3 | 4 | 3 | 3 | 3 | ||||
| Morocco | 2 | 141 | 2 | 146 | 2 | 144 | 3 | 150 | 153 |
| Mozambique | 1 | 22 | 1 | 24 | 26 | 27 | 27 | ||
| Myanmar | 1 | 87 | 1 | 82 | 1 | 77 | 1 | 79 | 80 |
| Namibia | 24 | 25 | 25 | 24 | 24 | ||||
| Nepal | 10 | 338 | 13 | 385 | 14 | 396 | 15 | 421 | 436 |
| Netherlands | 472 | 1436 | 481 | 1535 | 497 | 1556 | 513 | 1611 | 2124 |
| New Caledonia | 3 | 2 | 2 | 2 | 2 | ||||
| New Zealand | 129 | 376 | 135 | 381 | 136 | 393 | 137 | 394 | 531 |
| Nicaragua | 79 | 86 | 87 | 75 | 75 | ||||
| Niger | 1 | 2 | 2 | 3 | 3 | ||||
| Nigeria | 75 | 494 | 77 | 513 | 78 | 510 | 79 | 518 | 597 |
| Northern Mariana Islands | 1 | 2 | 2 | 2 | 2 | ||||
| Norway | 69 | 380 | 72 | 398 | 76 | 376 | 80 | 370 | 450 |
| Oman | 3 | 38 | 3 | 43 | 4 | 44 | 4 | 42 | 46 |
| Other | 30 | 33 | 30 | 32 | 32 | ||||
| Pakistan | 31 | 618 | 33 | 676 | 33 | 711 | 35 | 747 | 782 |
| Palau | 1 | 2 | 2 | 2 | 2 | ||||
| Palestine | 1 | 65 | 1 | 64 | 1 | 69 | 1 | 71 | 72 |
| Panama | 59 | 55 | 53 | 54 | 54 | ||||
| Papua New Guinea | 7 | 6 | 9 | 9 | 9 | ||||
| Paraguay | 5 | 47 | 5 | 47 | 5 | 51 | 4 | 53 | 57 |
| Peru | 20 | 3447 | 27 | 3641 | 29 | 3672 | 32 | 3812 | 3844 |
| Philippines | 32 | 551 | 32 | 669 | 33 | 751 | 33 | 812 | 845 |
| Poland | 55 | 428 | 54 | 439 | 56 | 437 | 60 | 449 | 509 |
| Portugal | 37 | 850 | 37 | 933 | 38 | 946 | 39 | 977 | 1016 |
| Puerto Rico | 32 | 34 | 37 | 73 | 73 | ||||
| Qatar | 12 | 114 | 12 | 114 | 11 | 118 | 11 | 127 | 138 |
| Réunion | 1 | 1 | |||||||
| Romania | 12 | 197 | 12 | 212 | 12 | 217 | 12 | 227 | 239 |
| Russian Federation | 47 | 1241 | 53 | 1234 | 58 | 1187 | 57 | 1266 | 1323 |
| Rwanda | 1 | 34 | 2 | 31 | 2 | 33 | 2 | 37 | 39 |
| Saint Kitts and Nevis | 1 | 1 | 4 | 5 | 5 | ||||
| Saint Lucia | 2 | 1 | 1 | 1 | 1 | ||||
| Saint Martin | 1 | 1 | 1 | ||||||
| Saint Vincent and the Grenadines | 1 | 1 | 1 | 1 | |||||
| Samoa | 2 | 2 | 1 | 1 | 1 | ||||
| Saudi Arabia | 34 | 628 | 34 | 661 | 36 | 682 | 36 | 710 | 746 |
| Senegal | 22 | 21 | 23 | 24 | 24 | ||||
| Serbia | 8 | 44 | 8 | 43 | 9 | 41 | 8 | 42 | 50 |
| Seychelles | 3 | 3 | 3 | 4 | 4 | ||||
| Sierra Leone | 8 | 8 | 8 | 10 | 10 | ||||
| Singapore | 82 | 522 | 87 | 550 | 90 | 569 | 92 | 588 | 680 |
| Slovakia | 17 | 16 | 19 | 17 | 17 | ||||
| Slovenia | 4 | 56 | 4 | 51 | 4 | 45 | 4 | 45 | 49 |
| Solomon Islands | 3 | 3 | 3 | 3 | 3 | ||||
| Somalia | 8 | 9 | 10 | 9 | 9 | ||||
| South Africa | 139 | 530 | 142 | 567 | 145 | 570 | 148 | 581 | 729 |
| South Sudan | 5 | 6 | 6 | 6 | 6 | ||||
| Spain | 215 | 2156 | 217 | 2342 | 226 | 2332 | 226 | 2403 | 2629 |
| Sri Lanka | 10 | 109 | 11 | 124 | 12 | 138 | 17 | 142 | 159 |
| Sudan | 2 | 199 | 5 | 214 | 6 | 206 | 7 | 204 | 211 |
| Suriname | 1 | 1 | 1 | 1 | 1 | ||||
| Swaziland | 1 | 1 | |||||||
| Sweden | 72 | 1469 | 71 | 1528 | 74 | 1498 | 78 | 1566 | 1644 |
| Switzerland | 164 | 718 | 170 | 751 | 175 | 771 | 177 | 759 | 936 |
| Syrian Arab Republic | 40 | 331 | 40 | 339 | 41 | 340 | 41 | 337 | 378 |
| Taiwan | 59 | 895 | 60 | 952 | 59 | 992 | 61 | 999 | 1060 |
| Tajikistan | 12 | 13 | 13 | 13 | 13 | ||||
| Tanzania | 6 | 70 | 6 | 69 | 6 | 70 | 6 | 67 | 73 |
| Thailand | 105 | 412 | 107 | 429 | 109 | 478 | 109 | 497 | 606 |
| Timor-Leste | 1 | 1 | 1 | 1 | 1 | ||||
| Togo | 8 | 7 | 6 | 5 | 5 | ||||
| Tonga | 1 | 1 | 1 | 1 | 1 | ||||
| Trinidad and Tobago | 1 | 20 | 1 | 25 | 2 | 25 | 2 | 28 | 30 |
| Tunisia | 4 | 60 | 4 | 61 | 4 | 69 | 4 | 76 | 80 |
| Turkey | 12 | 458 | 12 | 456 | 13 | 466 | 14 | 487 | 501 |
| Turkmenistan | 1 | 1 | 1 | 1 | |||||
| Turks and Caicos Islands | 1 | 1 | 1 | 1 | 1 | ||||
| Tuvalu | 2 | 2 | 2 | 2 | 2 | ||||
| Uganda | 7 | 118 | 7 | 112 | 6 | 117 | 6 | 116 | 122 |
| UK | 3068 | 12828 | 3165 | 13220 | 3231 | 13220 | 3290 | 13690 | 16980 |
| Ukraine | 8 | 281 | 8 | 283 | 8 | 272 | 8 | 273 | 281 |
| United Arab Emirates | 9 | 237 | 11 | 242 | 11 | 246 | 11 | 292 | 303 |
| United Kingdom | 1 | 1 | |||||||
| United States Minor Outlying Islands | 36 | 25 | |||||||
| Uruguay | 4 | 70 | 4 | 74 | 4 | 76 | 4 | 80 | 84 |
| USA | 982 | 10519 | 1007 | 10659 | 1047 | 10544 | 1058 | 10870 | 11928 |
| Uzbekistan | 1 | 32 | 1 | 33 | 1 | 32 | 1 | 32 | 33 |
| Vanuatu | 1 | 1 | |||||||
| Venezuela | 7 | 119 | 7 | 129 | 7 | 138 | 7 | 149 | 156 |
| Vietnam | 2 | 184 | 2 | 206 | 2 | 225 | 2 | 242 | 244 |
| Virgin Islands, British | 4 | 4 | 3 | 3 | 3 | ||||
| Virgin Islands, U.S. | 7 | 5 | 6 | 5 | 5 | ||||
| Yemen | 1 | 52 | 1 | 57 | 1 | 60 | 1 | 61 | 62 |
| Zambia | 1 | 43 | 1 | 45 | 1 | 46 | 1 | 47 | 48 |
| Zimbabwe | 1 | 51 | 2 | 54 | 2 | 53 | 2 | 54 | 56 |
| No country listed | 25 | 223 | 24 | 190 | 7 | 17 | 6 | 14 | 20 |
| Grand Total | 12191 | 93016 | 12584 | 97573 | 12934 | 99063 | 13133 | 102929 | 115962 |