SmogRank / World / Slovakia / November 2025

Most polluted cities in Slovakia, November 2025

24 cities in Slovakia ranked by their average PM2.5 over the 30 days. Worst: Žilina at 17.8 µg/m³, #313 of 2,157 cities in the world. Cleanest: Poprad at 7.5. A city needs measurements on 70% of the days to be ranked.

← Žilina 17.8
Every city in Slovakia ranked for November 2025, one column each, worst on the left and cleanest on the right. Point at it to read a city; tap to open it.
  1. 1ŽilinaŽilina Region
    17.8
  2. 2LučenecBanská Bystrica Region
    17.6
  3. 3ČadcaŽilina Region
    17.4
  4. 4PúchovTrenčín Region
    17.1
  5. 5MartinŽilina Region
    16.1
  6. 6SenicaTrnava Region
    15.8
  7. 7TrebišovKošice Region
    15.3
  8. 7HumennéPrešov Region
    15.3
  9. 9KošiceKošice Region
    15.2
  10. 10Vranov nad TopľouPrešov Region
    15.1
  11. 11KomárnoNitra Region
    14.1
  12. 12TrenčínTrenčín Region
    13.9
  13. 13SereďTrnava Region
    13.1
  14. 13MalackyBratislava Region
    13.1
  15. 15BardejovPrešov Region
    12.6
  16. 16PartizánskeTrenčín Region
    12.5
  17. 17NitraNitra Region
    12.4
  18. 18TrnavaTrnava Region
    12.3
  19. 19Devínska Nová VesBratislava Region
    12.2
  20. 20PrievidzaTrenčín Region
    11.6
  21. 21BratislavaBratislava Region
    11.4
  22. 22SninaPrešov Region
    10.3
  23. 23Žiar nad HronomBanská Bystrica Region
    9.2
  24. 24PopradPrešov Region
    7.5
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, November 2025 · Slovakia now

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SmogRank, most polluted cities in Slovakia, PM2.5, November 2025, smogrank.com/sk/history/2025-11 (accessed 2 Oct 2026).

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