We measure wastewater treatment as the proportion of wastewater that undergoes at least primary treatment in each country, multiplied by the proportion of the population connected to a wastewater collection system. A score of 100 indicates that a country has 100% of its population connected to a sewer system and 100% of household wastewater is treated; a score of 0 indicates that no wastewater is reported as treated within a country. Data come from a wide variety of sources, especially the UN Statistics Division, the OECD, and Eurostat.
Wastewater treatment
| Country | Rank | EPI Score | 10-Year Change |
|---|---|---|---|
| Filter by Region: | |||
| Denmark | 1 | 100 | - |
| Finland | 1 | 100 | - |
| Netherlands | 1 | 100 | - |
| Singapore | 1 | 100 | - |
| Sweden | 1 | 100 | - |
| Luxembourg | 6 | 98.5 | - |
| United Kingdom | 6 | 98.5 | - |
| Germany | 8 | 97 | - |
| Switzerland | 9 | 96.7 | - |
| Austria | 10 | 94 | - |
| Australia | 11 | 92.7 | - |
| Spain | 12 | 91.5 | - |
| Latvia | 13 | 90.7 | - |
| Ireland | 14 | 89.7 | - |
| Slovenia | 15 | 89.1 | - |
| France | 16 | 88 | - |
| Bahrain | 17 | 86.9 | - |
| Greece | 18 | 81.7 | - |
| Israel | 18 | 81.7 | - |
| New Zealand | 20 | 79.9 | - |
| South Korea | 21 | 76.8 | - |
| United Arab Emirates | 21 | 76.8 | - |
| Japan | 23 | 75.3 | - |
| Chile | 24 | 71.9 | - |
| Qatar | 25 | 70 | - |
| Estonia | 26 | 69.6 | - |
| Belgium | 27 | 67.9 | - |
| Canada | 28 | 67.4 | - |
| Norway | 29 | 64.3 | - |
| Poland | 30 | 60.9 | - |
| Czech Republic | 31 | 60.8 | - |
| United States of America | 32 | 58.9 | - |
| Italy | 33 | 58.8 | - |
| Portugal | 34 | 55 | - |
| Hungary | 35 | 53.8 | - |
| Croatia | 36 | 51.7 | - |
| Lithuania | 37 | 51.4 | - |
| Cyprus | 38 | 50 | - |
| Brazil | 39 | 49.3 | - |
| Georgia | 40 | 46.6 | - |
| Peru | 41 | 46.4 | - |
| Slovakia | 42 | 43.7 | - |
| Kuwait | 43 | 43.1 | - |
| Tunisia | 44 | 43 | - |
| Egypt | 45 | 42 | - |
| Lebanon | 46 | 38.2 | - |
| Algeria | 47 | 33.1 | - |
| Mexico | 48 | 31.6 | - |
| Romania | 49 | 30.4 | - |
| Turkey | 49 | 30.4 | - |
| Kazakhstan | 51 | 28.6 | - |
| Colombia | 52 | 25.6 | - |
| Panama | 53 | 23.1 | - |
| South Africa | 54 | 21.7 | - |
| Cabo Verde | 55 | 20.9 | - |
| Iraq | 56 | 19.5 | - |
| Jordan | 57 | 18.6 | - |
| Russia | 58 | 18.5 | - |
| Iceland | 59 | 15.6 | - |
| Ukraine | 60 | 14.1 | - |
| Bulgaria | 61 | 13.9 | - |
| Oman | 62 | 13.4 | - |
| Malaysia | 63 | 12.4 | - |
| Saudi Arabia | 64 | 11.8 | - |
| Turkmenistan | 65 | 9.8 | - |
| Costa Rica | 66 | 9.7 | - |
| China | 67 | 9.4 | - |
| Moldova | 68 | 9 | - |
| Armenia | 69 | 8.8 | - |
| Montenegro | 70 | 8.4 | - |
| Belarus | 71 | 7.2 | - |
| Taiwan | 72 | 7.1 | - |
| Guatemala | 73 | 6.8 | - |
| Venezuela | 74 | 6.4 | - |
| Namibia | 75 | 6.2 | - |
| Brunei Darussalam | 76 | 6 | - |
| Argentina | 77 | 5.9 | - |
| Dominican Republic | 78 | 5.8 | - |
| Eswatini | 79 | 5.7 | - |
| Morocco | 80 | 5.4 | - |
| Maldives | 81 | 4.3 | - |
| Zambia | 82 | 4.2 | - |
| Fiji | 83 | 3.9 | - |
| Azerbaijan | 84 | 3.8 | - |
| Iran | 85 | 3.7 | - |
| Cuba | 86 | 3.6 | - |
| Bolivia | 87 | 3.5 | - |
| Mongolia | 88 | 3.3 | - |
| Trinidad and Tobago | 89 | 3.2 | - |
| Honduras | 90 | 3.1 | - |
| Jamaica | 91 | 3 | - |
| Albania | 92 | 2.7 | - |
| Mauritius | 93 | 2.5 | - |
| India | 94 | 2.2 | - |
| Tajikistan | 94 | 2.2 | - |
| Uruguay | 96 | 2.1 | - |
| Thailand | 97 | 2 | - |
| Serbia | 98 | 1.7 | - |
| Seychelles | 99 | 1.6 | - |
| Bahamas | 100 | 1.4 | - |
| Tanzania | 100 | 1.4 | - |
| Antigua and Barbuda | 102 | 1.3 | - |
| Equatorial Guinea | 103 | 1.2 | - |
| Barbados | 104 | 1.1 | - |
| Bosnia and Herzegovina | 104 | 1.1 | - |
| Botswana | 106 | 1 | - |
| Dominica | 106 | 1 | - |
| Grenada | 108 | 0.9 | - |
| North Macedonia | 108 | 0.9 | - |
| Saint Lucia | 108 | 0.9 | - |
| Saint Vincent and the Grenadines | 111 | 0.8 | - |
| Paraguay | 112 | 0.7 | - |
| Philippines | 112 | 0.7 | - |
| Belize | 114 | 0.6 | - |
| Cote d'Ivoire | 114 | 0.6 | - |
| Kenya | 116 | 0.5 | - |
| Senegal | 116 | 0.5 | - |
| Uganda | 118 | 0.4 | - |
| Lesotho | 119 | 0.3 | - |
| Republic of Congo | 119 | 0.3 | - |
| Samoa | 119 | 0.3 | - |
| Sao Tome and Principe | 119 | 0.3 | - |
| Timor-Leste | 119 | 0.3 | - |
| Tonga | 119 | 0.3 | - |
| Viet Nam | 119 | 0.3 | - |
| Kyrgyzstan | 126 | 0.2 | - |
| Mozambique | 126 | 0.2 | - |
| Nigeria | 126 | 0.2 | - |
| Comoros | 129 | 0.1 | - |
| El Salvador | 129 | 0.1 | - |
| Gambia | 129 | 0.1 | - |
| Micronesia | 129 | 0.1 | - |
| Pakistan | 129 | 0.1 | - |
| Afghanistan | 134 | - | - |
| Angola | 134 | - | - |
| Bangladesh | 134 | - | - |
| Benin | 134 | - | - |
| Bhutan | 134 | - | - |
| Burkina Faso | 134 | - | - |
| Burundi | 134 | - | - |
| Cambodia | 134 | - | - |
| Cameroon | 134 | - | - |
| Central African Republic | 134 | - | - |
| Chad | 134 | - | - |
| Dem. Rep. Congo | 134 | - | - |
| Djibouti | 134 | - | - |
| Ecuador | 134 | - | - |
| Eritrea | 134 | - | - |
| Ethiopia | 134 | - | - |
| Gabon | 134 | - | - |
| Ghana | 134 | - | - |
| Guinea | 134 | - | - |
| Guinea-Bissau | 134 | - | - |
| Guyana | 134 | - | - |
| Haiti | 134 | - | - |
| Indonesia | 134 | - | - |
| Kiribati | 134 | - | - |
| Laos | 134 | - | - |
| Liberia | 134 | - | - |
| Madagascar | 134 | - | - |
| Malawi | 134 | - | - |
| Mali | 134 | - | - |
| Malta | 134 | - | - |
| Marshall Islands | 134 | - | - |
| Mauritania | 134 | - | - |
| Myanmar | 134 | - | - |
| Nepal | 134 | - | - |
| Nicaragua | 134 | - | - |
| Niger | 134 | - | - |
| Papua New Guinea | 134 | - | - |
| Rwanda | 134 | - | - |
| Sierra Leone | 134 | - | - |
| Solomon Islands | 134 | - | - |
| Sri Lanka | 134 | - | - |
| Sudan | 134 | - | - |
| Suriname | 134 | - | - |
| Togo | 134 | - | - |
| Uzbekistan | 134 | - | - |
| Vanuatu | 134 | - | - |
| Zimbabwe | 134 | - | - |
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