Top 11 Cleanest Cities in the World

Helsinki is the capital and most populous city of Finland, with a population of 648,650 people. Situated on the Gulf of Finland, the city is the center of the Uusimaa region. The entire urban area of Helsinki has a population of 1,268,296 people.

In Helsinki, Finland, the city government consistently strives to provide green spaces and develop public transportation systems. 36% of the city's land area is allocated to parks, with over 40 biosphere reserves covering 890 hectares. Finland is actively protecting its coastline against the threat of rising sea levels and melting ice caps.

This city boasts majestic mountains, museums, and pristine beaches with white sandy shores, attracting international tourists. It is a renowned European destination with unique architectural structures. Despite being a densely populated city, the air quality is always maintained, making it the cleanest city in the world.

Singapore, officially known as the Republic of Singapore, is a sovereign island nation in Southeast Asia, situated off the southern tip of the Malay Peninsula and 137 km north of the equator. The territory of Singapore comprises a main diamond-shaped island and about 60 smaller islands.

Singapore is renowned as one of the most beautiful and cleanest countries globally, also being the most developed and civilized urban center. Despite the dynamic and bustling lifestyle, residents maintain a high level of environmental consciousness, evident in the unique and beautiful green spaces constructed throughout Singapore. The city has strict regulations regarding littering, imposing fines of over 700 USD for a first-time offense and more than 5,000 USD, along with community service, for repeat violations.

In Singapore, emphasis is placed on landscapes, the environment, and greenery due to limited land area. The city implements strategies like 'gardens in the city,' 'vertical gardens,' 'roof gardens,' and 'gardens anywhere.'

Brisbane is the capital and most populous city in the Australian state of Queensland. It is also the third-largest city in Australia. Situated near the Pacific Ocean, alongside the Brisbane River in the flat plains between Moreton Bay and the Great Dividing Range in the southeast of Queensland. In Brisbane, outdoor public entertainment areas, recreational spaces, and numerous new housing and land development projects aim to maintain green spaces.

Brisbane has recorded a fine particulate matter concentration of 7.3 g/m3 in the air, indicating remarkably clean air. The city strives to become the cleanest city in Australia through policies that enhance air quality, reduce waste, and implement various reforms to make the city even greener. Residents of Brisbane city are encouraged to recycle waste, use organic products, plant more greenery, prioritize public transportation, and embrace a healthier and more dynamic lifestyle.

Luxembourg, officially known as the Grand Duchy of Luxembourg, is a small landlocked country in Western Europe, bordered by Belgium, France, and Germany. Luxembourg is a constitutional monarchy and parliamentary democracy, ruled by a grand duke and is the only remaining grand duchy in the world. Luxembourg was ranked as the 3rd cleanest city in the world in 2015.

Luxembourg, often referred to as the 'green heart of Europe,' boasts a vast green space. Despite having specialized sanitation professionals, local residents organize collective clean-up and urban beautification programs in spring.

Luxembourg always attracts visitors with its fresh, cool atmosphere, characterized by lush green trees covering a sizable portion of the city. The people here are highly conscious of waste management and environmental protection, making Luxembourg, despite its small size, a desirable place to live and a dream destination for many.

Half of Vienna's urban area is covered with greenery, complemented by a convenient public transportation system. The city takes pride in its pure drinking water sourced from the Alps and the picturesque Danube River, where residents enjoy summer swims. In 2019, Vienna in Austria once again secured its position in the ranking of the most livable cities globally, attributed not only to its excellent living conditions but also to its renowned clean and green environment, a crucial factor in the EIU's ranking.

Vienna stands out as one of the cleanest and greenest cities globally, thanks to its modern waste management system and extensive green spaces, encompassing over 17,300 garbage bins with various designs strategically placed in each district. There are more than 12,000 cigarette-shaped trash bins and 300 bins specifically designed for pet waste, encouraging residents and visitors to properly sort and dispose of waste. Vienna's drinking water comes from the pure Alpine sources.

Honolulu is the capital of the state of Hawaii in the United States. The name Honolulu means 'sheltered bay' or 'place of refuge.' As of July 1, 2004, the population of Honolulu is 377,260, and the population of the city and county of Honolulu is 900,000. It is the capital and the most populous city in the state of Hawaii.

Honolulu is located on the island of Oahu, serving as a tourist attraction in Hawaii and the gateway to Hawaii and the United States. The city is adorned with abundant greenery and flowers, earning it the nickname the 'tropical paradise of Hawaii.' The area enjoys a warm climate year-round, with beautiful natural landscapes and diverse ecosystems.

The Honolulu government has committed to using clean, sustainable energy in urban infrastructure. Several projects aim to develop a green environment, including H-Power, converting 2,000 tons of waste into electricity to power over 40,000 households, and the Pearl Citybus project utilizing solar energy to reduce electricity consumption costs.

Adelaide is the capital and largest city of South Australia. It is also the fifth-largest city in Australia, recognized as one of the most livable cities in the world. Adelaide efficiently processes 85% of its waste through recycling, and nearly half of South Australia's energy consumption comes from renewable sources. The city boasts one of the best ecological environments in Australia.

Adelaide achieved a day with zero greenhouse gas emissions in 2016. This was a result of emergency power cuts across the state, aligning perfectly with Earth Hour.

Mercer Global Financial rates Adelaide as one of the greenest cities on the planet. To combat coastal erosion caused by urban expansion, the government initiated a plan to green the city, planting 3 million trees, utilizing solar energy, promoting climate-adaptive public transportation measures.

Adelaide is renowned for its sustainably-oriented urban landscapes. The city has implemented various programs to promote environmental conservation, such as the 'green city' initiative, the '3 million trees' project, along with solar energy initiatives, and climate change adaptation methods.

Calgary is a city located in the southern part of Alberta, Canada. It is the largest city in Alberta and the third-largest in Canada by population. The Calgary metropolitan area, including the City of Calgary, is the fifth-largest metropolitan area in Canada. English speakers use the term 'Calgarian' to refer to residents of Calgary.

With 2,300 hours of sunshine per year, Calgary is the warmest region in the country. In 2007, Forbes honored Calgary as the cleanest city in the world. Calgary has become one of the cleanest cities globally, thanks to the city council's initiative to plant greenery. Residents and tourists can face heavy fines for littering, throwing cigarette butts, or littering through car windows. The city government also proposes financial support for the green lifestyle of citizens, such as using organic products and reducing waste from packed lunches. 75% of the city uses renewable energy. Calgary also has a wastewater treatment plant processing 100 million liters of filtered water every day.

This city is also one of the most sustainable environments in Australia.

Wellington is the capital and the second most populous city in New Zealand, with a population of around 5.66 million people. The city is a popular tourist destination in New Zealand. It is located at the southwestern tip of the North Island, between Cook Strait and the Rimutaka Range. Wellington is a major population center in the southern North Island and serves as the administrative center of the Wellington region.

According to the IQ Air report, Wellington has the cleanest air in New Zealand. The cable car system in Wellington, New Zealand has been expanded to help reduce air pollution from cars. In addition, the city has built a public transportation system, including electric trains, river ferries, and buses. The city's public transportation system is a favorite among locals. You can ride the cable car and breathe in the cool air while enjoying the surrounding scenery. With lush forests, famous museums, comfortable living conditions, and green landscapes, Wellington is an ideal destination for travelers.

Ifrane is a city in the Middle Atlas region in northern Morocco. As the capital of the Ifrane province in the Fès-Meknès region, Ifrane is situated at an altitude of 1,665 meters. In the Tamazight language of the region, 'ifran' means cave. Ifrane is known for its enchanting beauty and the climate that nature bestows during spring with snow-capped cedar forests and lush green meadows. The area features red-tiled houses, flower-filled gardens, and parks with lakes.

Ifrane is known as the “Little Switzerland” of beautiful Morocco with the surrounding hilly landscape. Residents here can experience snowy landscapes in winter or enjoy the cool summer climate. Ifrane is highly rated for its very low air pollution and abundant spring water, surrounded by the green spaces of national parks within the city.

Residents can experience the snowfall in winter and the cool weather in summer. Ifrane is highly rated for air quality, abundant pure spring water, and green spaces in national parks.

Oslo là một khu tự quản, thủ đô và cũng là thành phố đông dân nhất Na Uy. Oslo trở thành khu tự quản vào ngày 1 tháng 1 năm 1838. Tuy nhiên thành phố đã được Vua Harald III của Na Uy thành lập từ năm 1048, thành phố từng bị phá hủy nghiêm trọng do hỏa hoạn vào năm 1624.

Thủ đô Oslo của Na Uy được coi là thành phố có hệ thống xử lý rác thải tự động hiện đại nhất hiện nay với hệ thống bơm và các đường ống thông nhau dưới lòng đất để gom các loại rác thải đến những khu xử lý, nơi rác thải được đốt với mục đích tạo năng lượng điện và nhiệt cho thành phố.

Oslo được tạp chí FDI xếp hạng số một về chất lượng cuộc sống trong số các thành phố lớn của châu Âu. Oslo cũng được vinh danh là "Thủ đô Xanh của Châu Âu 2019", một giải thưởng do Ủy ban Châu Âu trao tặng. Nơi này đang trải qua một cuộc cách mạng về môi trường, với việc các nhà lãnh đạo thành phố đặt mục tiêu giảm tới 95% lượng khí thải vào năm 2030.