| Country | Certified sites |
|---|---|
| Argentina | 6 |
| Armenia | 2 |
| Aruba | 1 |
| Australia | 9 |
| Austria | 34 |
| Azerbaijan | 7 |
| Bahrain | 4 |
| Belgium | 403 |
| Bermuda | 1 |
| Bonaire, Sint Eustatius and Saba | 1 |
| Brazil | 50 |
| Bulgaria | 9 |
| Cambodia | 3 |
| Cayman Islands | 1 |
| China | 8 |
| Colombia | 14 |
| Croatia | 31 |
| Curaçao | 2 |
| Cyprus | 41 |
| Czechia | 8 |
| Côte d'Ivoire | 3 |
| Denmark | 275 |
| Egypt | 23 |
| England | 221 |
| Estonia | 94 |
| Faroe Islands | 3 |
| Finland | 226 |
| France | 2363 |
| Georgia | 4 |
| Germany | 468 |
| Gibraltar | 2 |
| Greece | 590 |
| Greenland | 3 |
| Hungary | 16 |
| Iceland | 21 |
| India | 33 |
| Indonesia | 30 |
| Ireland | 7 |
| Israel | 1 |
| Italy | 115 |
| Japan | 12 |
| Jordan | 37 |
| Kazakhstan | 7 |
| Kenya | 5 |
| Kuwait | 6 |
| Laos | 1 |
| Latvia | 11 |
| Lithuania | 5 |
| Luxembourg | 8 |
| Madagascar | 1 |
| Malaysia | 1 |
| Malta | 9 |
| Mauritius | 12 |
| Mexico | 248 |
| Montenegro | 6 |
| Morocco | 4 |
| Netherlands | 803 |
| North Macedonia | 1 |
| Norway | 61 |
| Oman | 14 |
| Panama | 1 |
| Poland | 65 |
| Portugal | 323 |
| Qatar | 27 |
| Romania | 24 |
| Rwanda | 1 |
| Saint Kitts and Nevis | 1 |
| Saudi Arabia | 26 |
| Scotland | 42 |
| Senegal | 4 |
| Serbia | 7 |
| Seychelles | 2 |
| Singapore | 1 |
| Slovenia | 213 |
| South Africa | 3 |
| South Korea | 47 |
| Spain | 58 |
| Suriname | 3 |
| Sweden | 248 |
| Switzerland | 51 |
| Thailand | 22 |
| Trinidad and Tobago | 3 |
| Turkey | 8 |
| Ukraine | 12 |
| United Arab Emirates | 117 |
| United Kingdom | 18 |
| Uzbekistan | 1 |
| Vietnam | 10 |
| Wales | 6 |