1. Switzerland: The Pinnacle of Cleanliness

Switzerland consistently ranks as one of the cleanest countries globally, with a 2024 Environmental Performance Index (EPI) score of 91.5. The Swiss government has implemented strict waste management policies, including a comprehensive recycling system where over 50% of waste is recycled. The country also boasts pristine lakes and rivers, with the Rhine River being one of the cleanest in Europe. According to the Federal Office for the Environment, Switzerland has reduced its greenhouse gas emissions by 20% since 1990, showcasing its commitment to environmental sustainability. Public awareness campaigns further enhance cleanliness, with citizens actively participating in clean-up initiatives. The Swiss model serves as a benchmark for other nations striving for cleanliness.
2. Finland: A Model of Sustainability

Finland is renowned for its clean air and water, ranking second in the EPI with a score of 89.3. The country has made significant investments in renewable energy, with over 40% of its energy coming from wind and solar sources as of 2025. Finnish cities like Helsinki have implemented extensive public transportation systems, reducing reliance on cars and minimizing pollution. Additionally, Finland’s education system emphasizes environmental stewardship, teaching children the importance of sustainability from a young age. The Finnish government has also set ambitious goals to achieve carbon neutrality by 2035, further solidifying its reputation as a leader in cleanliness. The combination of policy, education, and public engagement makes Finland a standout example.
3. Denmark: Leading in Waste Management

Denmark ranks third in the EPI with a score of 88.2, primarily due to its innovative waste management strategies. The country has adopted a circular economy model, where waste is reused and recycled, resulting in a recycling rate of over 60%. Copenhagen, the capital, has ambitious plans to become carbon neutral by 2025, investing heavily in green infrastructure and public transportation. Danish citizens are highly engaged in environmental initiatives, with many participating in local clean-up events. The government also promotes sustainable agriculture, ensuring that food production does not compromise environmental health. Denmark’s holistic approach to cleanliness sets a high standard for other nations.
4. New Zealand: A Clean and Green Paradise

New Zealand is often referred to as a “clean and green” country, ranking fourth in the EPI with a score of 87.5. The country has stringent environmental regulations that protect its unique ecosystems, including the famous Fiordland National Park. Recent studies indicate that New Zealand’s air quality is among the best in the world, with a 2024 report showing a 15% reduction in particulate matter over the last decade. The government has also committed to planting one billion trees by 2028 to combat climate change and enhance biodiversity. New Zealand’s commitment to preserving its natural beauty is evident in its clean cities and pristine landscapes, making it a global leader in environmental health.
5. Sweden: A Leader in Clean Technology

Sweden ranks fifth in the EPI with a score of 86.7, driven by its investment in clean technology and renewable energy. The country aims to be fossil fuel-free by 2045, with over 54% of its energy coming from renewable sources as of 2025. Swedish cities are designed with sustainability in mind, featuring extensive bike lanes and public transport systems that reduce carbon emissions. The government also promotes eco-friendly practices among businesses and households, resulting in a high recycling rate of 99%. Sweden’s proactive approach to environmental issues and its emphasis on innovation in clean technology make it a model for other nations to emulate.
6. Norway: Pristine Landscapes and Clean Energy

Norway, with an EPI score of 85.4, is known for its stunning natural landscapes and commitment to environmental preservation. The country generates over 98% of its electricity from hydropower, significantly reducing its carbon footprint. Recent initiatives have focused on reducing plastic waste, with a goal to eliminate single-use plastics by 2025. Norwegian cities are also implementing green urban planning strategies, promoting green spaces and biodiversity. The government actively encourages citizens to adopt sustainable practices, resulting in a high level of public engagement in environmental issues. Norway’s dedication to maintaining its pristine environment sets a high standard for cleanliness.
7. Canada: A Commitment to Cleanliness

Canada ranks seventh in the EPI with a score of 84.1, reflecting its vast natural resources and commitment to environmental protection. The Canadian government has implemented policies aimed at reducing greenhouse gas emissions by 40-45% by 2030 compared to 2005 levels. Recent reports highlight that Canada is investing heavily in clean technology, with over CAD 1.5 billion allocated for green initiatives in 2024. Canadian cities like Vancouver are recognized for their clean air and water, with extensive recycling programs in place. Public awareness campaigns further encourage responsible waste disposal and environmental stewardship among citizens. Canada’s commitment to cleanliness is evident in its policies and public engagement.
8. India: Major Sanitary Challenges

Despite being one of the fastest-growing economies, India faces significant sanitary challenges, ranking low on the EPI with a score of 27.6. The country struggles with waste management, with approximately 60 million tons of waste generated annually, and only 30% of it is processed effectively. The Ganges River, one of the holiest rivers in India, is heavily polluted, with recent studies showing that over 80% of its water is unfit for consumption. The Indian government has launched initiatives like the Swachh Bharat Mission to improve sanitation, but progress remains slow. Urban areas are particularly affected, with inadequate sewage systems contributing to public health issues. India’s struggle with cleanliness highlights the need for comprehensive policy reforms and public engagement.
9. Nigeria: A Public Health Crisis

Nigeria faces severe sanitary problems, ranking among the lowest in the EPI with a score of 27.5. The country grapples with inadequate waste management systems, leading to widespread pollution and public health crises. Recent reports indicate that over 60 million Nigerians lack access to clean drinking water, contributing to the spread of waterborne diseases. The Lagos State government has initiated clean-up campaigns, but challenges persist due to rapid urbanization and population growth. The lack of infrastructure and public awareness exacerbates the situation, making it crucial for the government to prioritize sanitation and public health initiatives. Nigeria’s sanitary problems underscore the urgent need for comprehensive solutions.
10. Haiti: A Struggle for Clean Water and Sanitation

Haiti ranks among the countries with the most significant sanitary problems, with an EPI score of 22.3. The country has faced numerous challenges, including natural disasters and political instability, which have severely impacted its sanitation infrastructure. Recent studies reveal that over 4 million Haitians lack access to clean drinking water, leading to outbreaks of cholera and other diseases. The Haitian government, with support from international organizations, has launched initiatives to improve water quality and sanitation, but progress remains slow. The lack of resources and infrastructure continues to hinder efforts to provide basic sanitation services. Haiti’s situation highlights the critical need for international support and sustainable solutions to improve public health.