SmogRank / Countries / Mexico / 2025

Most polluted cities in Mexico, 2025

30 cities in Mexico ranked by their average PM2.5 over the 365 days; 30 above the WHO annual guideline (5.0 µg/m³). Worst: Tlaquepaque at 26.3 µg/m³, #133 of 2,131 cities in the world. Cleanest: Pachuca de Soto at 10.9. A city needs measurements on 70% of the days to be ranked.

  1. 1TlaquepaqueJalisco
    26.35.3×
  2. 2AguascalientesAguascalientes
    21.94.4×
  3. 3Ciudad Benito JuárezNuevo León
    21.74.3×
  4. 4Naucalpan de JuárezMéxico
    21.14.2×
  5. 5Santa CatarinaNuevo León
    20.74.1×
  6. 6MexicaliBaja California
    19.63.9×
  7. 7Mexico CityMexico City
    19.13.8×
  8. 8PueblaPuebla
    18.23.6×
  9. 9IrapuatoGuanajuato
    17.73.5×
  10. 10MonterreyNuevo León
    17.53.5×
  11. 11Mixquiahuala de JuárezHidalgo
    17.43.5×
  12. 11Ciudad JuárezChihuahua
    17.43.5×
  13. 13León de los AldamaGuanajuato
    17.23.4×
  14. 14SalamancaGuanajuato
    16.53.3×
  15. 14MoreliaMichoacán
    16.53.3×
  16. 16CelayaGuanajuato
    16.43.3×
  17. 17TehuacánPuebla
    16.23.2×
  18. 18TijuanaBaja California
    15.33.1×
  19. 19ZapopanJalisco
    15.03.0×
  20. 20TulancingoHidalgo
    14.72.9×
  21. 21Zacatepec de HidalgoMorelos
    14.52.9×
  22. 22TepicNayarit
    14.32.9×
  23. 23CuautlaMorelos
    13.52.7×
  24. 23San Miguel de AllendeGuanajuato
    13.52.7×
  25. 23Victoria de DurangoDurango
    13.52.7×
  26. 26San Juan del RíoQuerétaro
    13.32.7×
  27. 27Santiago de QuerétaroQuerétaro
    13.22.6×
  28. 27AbasoloGuanajuato
    13.22.6×
  29. 29ChihuahuaChihuahua
    13.02.6×
  30. 30Pachuca de SotoHidalgo
    10.92.2×
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

All cities in the world, 2025 · Mexico now