Top-7 Cleanest Cities In The World - Page 4 of 9

Helsinki (Finland)

Helsinki, located in the southern part of Finland, is the capital and the largest city in the country. It’s on our list of top 7 cleanest cities in the world because of the strict environmental policies laid down by its government. The city has a population density of about 1,418 people per square kilometer, which also contributed to its position on this list.