Which world city has the highest Clean City Score?

London has the highest Clean City Score, at 74.94, followed by Paris (74.9) and New York (74.89).

Which world city has the lowest Clean City Score?

Rio de Janeiro has the lowest Clean City Score, at 47.7.

What is the median Clean City Score across world cities?

The median is 63.89 across the 49 world cities with data.

Where does this cleanest cities in the world data come from?

Rankodex compiles it from World Population Review and the primary sources it cites: The 50 Cleanest Cities in the World - BestLife; Quality of Living City Ranking 2024 - Mercer. Last updated 2026-10-28.

World City rankings

Cleanest Cities in the World

Name: Cleanest Cities in the World
Creator: Rankodex

London has the highest Clean City Score (74.94), followed by Paris (74.9) and New York (74.89). Rio de Janeiro has the lowest (47.7).

Environment49 cities · 5 metricsUpdated Oct 28, 2026Original page

2 sources

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49 of 1,103 cities

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Clean City Score

Darker green is better (higher is better). Click a place to highlight it.

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All 49 ranked

Best first.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one city; the lines mark the median and the middle half.

Median

63.89

Middle half 53.26 – 67.96

Average

61.1

49 cities

Highest

74.94

London

Lowest

47.7

Rio de Janeiro

Data

Click a column to sort, a row to highlight that place on the charts.

49 cities · # = rank by Clean City Score

#
1	London	74.94
2	Paris	74.9
3	New York	74.89
4	Madrid	72.66
5	Auckland	71.97
6	Hamburg	71.32
7	Barcelona	70.46
8	Berlin	70.28
9	Vienna	70.17
10	Tokyo	70.09
11	Sapporo	68.89
12	Melbourne	68.83
13	Rome	67.96
14	Toronto	67.63
15	Montreal	67.02
16	Phoenix	66.19
17	Kyoto	66.05
18	Yokohama	65.89
19	Philadelphia	65.59
20	Nagoya	65.49
21	Houston	65.39
22	Los Angeles	64.99
23	Osaka	64.89
24	Chicago	64.39
25	Fukuoka	63.89
26	Taipei	63.45
27	New Taipei	63.44
28	Taichung	58.29
29	Tainan	58.16
30	Kaohsiung	57.7
31	Singapore	54.63
32	Budapest	54.21
33	Bucharest	54.04
34	Curitiba	53.62
35	Cali	53.53
36	Moscow	53.33
37	Alexandria	53.26
38	Warsaw	52.31
39	Porto Alegre	52.3
40	Buenos Aires	51.24
40	Davao	51.24
42	Medellin	50.91
43	Bogota	50.04
44	Sao Paulo	49.9
45	Daejeon	49.78
46	Caracas	49.4
47	Daegu	48.56
48	Seoul	48.25
49	Rio de Janeiro	47.7

What correlates with Clean City Score?

Pearson r against 13 other city metrics sharing at least 30 cities. Ranks are read by standing: a better rank counts as higher, whether rank 1 is the best place on a list or the worst. Correlation is not causation.

Higher together

Places that have a higher Clean City Score tend to score higher on these (or rank better)

Smart City RankSmart CitiesA rank: rank 1 is the best
r = −0.39 · moderate · n = 30
Plot
City Size (km²)Population Density by City
r = +0.36 · moderate · n = 44
Plot
City Size (mi²)Population Density by City
r = +0.36 · moderate · n = 44
Plot
Urban Area (sq. km.)Largest City in the World by Area
r = +0.33 · moderate · n = 45
Plot
Urban Area (sq. mi.)Largest City in the World by Area
r = +0.33 · moderate · n = 45
Plot
Population Growth Rate
r = +0.20 · weak · n = 49
Plot

Opposite directions

Places that have a higher Clean City Score tend to score lower on these (or rank worse)

Urban Area DensityLargest City in the World by Area
r = −0.52 · strong · n = 45
Plot
Population Density (pop. per mi²)Population Density by City
r = −0.51 · strong · n = 44
Plot
Population Density (Pop. per km²)Population Density by City
r = −0.51 · strong · n = 44
Plot
Population Density RankPopulation Density by CityA rank: rank 1 is the best
r = +0.35 · moderate · n = 44
Plot
Population
r = −0.11 · weak · n = 49
Plot

Quick answers

Which world city has the highest Clean City Score?: London has the highest Clean City Score, at 74.94, followed by Paris (74.9) and New York (74.89).
Which world city has the lowest Clean City Score?: Rio de Janeiro has the lowest Clean City Score, at 47.7.
What is the median Clean City Score across world cities?: The median is 63.89 across the 49 world cities with data.
Where does this cleanest cities in the world data come from?: Rankodex compiles it from World Population Review and the primary sources it cites: The 50 Cleanest Cities in the World - BestLife; Quality of Living City Ranking 2024 - Mercer. Last updated 2026-10-28.