2017-2025
World's most polluted cities
The most polluted cities according to data aggregated from over 80,000 data points.
2025
World Air Quality Report
2025
World Air Quality Report
| Rank | City | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
| 52 |  Sergio Villasenor Mexico | 14.6 | 13.8 | 15.7 | -- | -- | -- | -- | -- | -- |
| 53 | Cuernavaca Mexico | 14.5 | 15.9 | 18.8 | 16.6 | 18.7 | 19.6 | 22.8 | -- | -- |
| 54 | Cadereyta Jimenez Mexico | 14.5 | 15.5 | 15.4 | 14.8 | 22 | 22.4 | -- | -- | -- |
| 55 | San Pedro Garza Garcia Mexico | 14.5 | 14.3 | 16.6 | 19 | 20.8 | 15.6 | 16.6 | -- | -- |
| 56 | Tlalixtac de Cabrera Mexico | 14.3 | 14.3 | 16.1 | 15.6 | 11.7 | -- | -- | -- | -- |
| 57 |  Cudahy USA | 14.3 | 13.2 | 10.9 | 11.7 | -- | -- | -- | -- | -- |
| 58 | San Juan del Rio Mexico | 14.1 | 12.7 | 15.7 | 15.5 | -- | -- | -- | -- | -- |
| 59 | Patzcuaro Mexico | 14 | 14.2 | 18.6 | 21.1 | 21.1 | 18 | 20.8 | -- | -- |
| 60 | East Los Angeles USA | 14 | 13.2 | -- | -- | -- | -- | -- | -- | -- |
| 61 | San Miguel de Allende Mexico | 13.8 | 12.9 | 14.1 | 13.8 | 12.5 | 12.4 | 14 | -- | -- |
| 62 | Ciudad Lopez Mateos Mexico | 13.8 | 13 | -- | -- | -- | -- | -- | -- | -- |
| 63 | Huntington Park USA | 13.8 | 13.6 | 10.8 | 11.4 | 14.1 | 17.7 | 15.4 | -- | -- |
| 64 | Bloomington USA | 13.7 | 13.9 | 13.8 | 14.4 | -- | -- | -- | -- | -- |
| 65 | Florence-Graham USA | 13.7 | 12.7 | 11.6 | 11.5 | 15.5 | -- | 16.1 | -- | -- |
| 66 |  Fraijanes Guatemala | 13.5 | 10.3 | -- | -- | -- | -- | -- | -- | -- |
| 67 | Guanajuato Mexico | 13.4 | 12.5 | 13.4 | 12.9 | 12.3 | 12.6 | 12.8 | 9 | -- |
| 68 | Rosemead USA | 13.4 | 10.2 | 10.4 | 12.2 | 15 | 17.3 | 14.7 | -- | -- |
| 69 | South Padre Island USA | 13.3 | 21.6 | 11.6 | 10.3 | 11.1 | 12.1 | 9.5 | 9 | 8.4 |
| 70 | Abasolo Mexico | 13.2 | 13.3 | 13 | 12.7 | 13.9 | 12.1 | 13.6 | 13 | -- |
| 71 | Nogales Mexico | 13.2 | 12.6 | 11 | -- | -- | -- | -- | -- | -- |
| 72 | Niland USA | 13.1 | 6.6 | 9 | 11.4 | 6.1 | -- | -- | -- | -- |
| 73 | San Pasqual USA | 13.1 | 10.7 | -- | -- | -- | -- | -- | -- | -- |
| 74 | Guatemala City Guatemala | 13 | 18.9 | 18.7 | 18.5 | 19.5 | -- | -- | -- | -- |
| 75 | Valle de Santiago Mexico | 13 | 18.2 | 14.7 | -- | -- | -- | -- | -- | -- |
| 76 | Ajalpan Mexico | 13 | 24.3 | 24.3 | 28.1 | -- | -- | -- | -- | -- |
| 77 |  San Salvador El Salvador | 12.9 | 17.3 | 19.2 | 13.4 | 12 | -- | -- | -- | -- |
| 78 | Villahermosa Mexico | 12.9 | 12.6 | -- | -- | -- | -- | -- | -- | -- |
| 79 | Inchelium USA | 12.9 | 7.8 | 12.9 | 8.5 | 30.7 | -- | -- | -- | -- |
| 80 |  Gimli Canada | 12.8 | 6.7 | -- | -- | -- | -- | -- | -- | -- |
| 81 | Torreon Mexico | 12.8 | 19.4 | 14 | 15.9 | 23.4 | -- | -- | -- | -- |
| 82 | Westwood USA | 12.8 | 13.2 | 11.3 | 7.6 | 31 | -- | -- | -- | -- |
| 83 | Sunland Park USA | 12.8 | 9.4 | 9.9 | 8.1 | 10.3 | -- | -- | -- | -- |
| 84 | Fort McMurray Canada | 12.7 | 12.5 | 22.8 | 7.5 | 7 | 5.4 | 6.4 | -- | -- |
| 85 | Burbank USA | 12.7 | 10.4 | 11.2 | 12.3 | 14.8 | 17.4 | 15.5 | -- | -- |
| 86 | North El Monte USA | 12.7 | 15.4 | 14.4 | 14.3 | 15.6 | -- | -- | -- | -- |
| 87 | Ontario USA | 12.7 | 14.3 | 13.4 | 15.1 | 18.8 | 17.6 | 16 | -- | -- |
| 88 | San Gabriel USA | 12.6 | 13 | 13.5 | 13.4 | 16.3 | 17.3 | 14.2 | -- | -- |
| 89 | Fort Mckay Canada | 12.5 | 12.2 | 23.8 | 6.3 | 5.6 | -- | -- | -- | -- |
| 90 | Exeter USA | 12.5 | 12.7 | 12.7 | 14.8 | 22.1 | -- | -- | -- | -- |
| 91 | Westmont USA | 12.5 | 14 | -- | -- | -- | -- | -- | -- | -- |
| 92 | Montgomery County USA | 12.5 | -- | -- | -- | -- | -- | -- | -- | -- |
| 93 | Estevan Canada | 12.4 | 9.5 | 5.5 | 6.6 | 8.5 | -- | -- | -- | -- |
| 94 | Yorkton Canada | 12.4 | 9.9 | 8 | 5.8 | 13.2 | -- | -- | -- | -- |
| 95 | Chihuahua Mexico | 12.4 | 12 | 14.2 | 12.4 | 15.5 | 13.2 | -- | -- | -- |
| 96 | Azusa USA | 12.4 | -- | -- | -- | -- | -- | -- | -- | -- |
| 97 | Maywood USA | 12.3 | 12.4 | 10.7 | 11.6 | 15.7 | 17.5 | 16.5 | -- | -- |
| 98 | Tepeapulco Mexico | 12.2 | 12.9 | 13.2 | 19.7 | 16.3 | -- | -- | -- | -- |
| 99 | East Pasadena USA | 12.2 | 11.2 | -- | -- | -- | -- | -- | -- | -- |
| 100 | Ames USA | 12.2 | 10.6 | 12.3 | -- | -- | -- | -- | -- | -- |
| 101 | Downey USA | 12.1 | 10.8 | 9.1 | 9.2 | 11.9 | 14.4 | 12.2 | -- | -- |
