SmogRank / Countries / Mexico / December 2025
Most polluted cities in Mexico, December 2025
48 cities in Mexico ranked by their average PM2.5 over the 31 days. Worst: Hacienda Santa Fe at 46.8 µg/m³, #175 of 2,360 cities in the world. Cleanest: Victoria de Durango at 0.0. A city needs measurements on 70% of the days to be ranked.
- 1Hacienda Santa FeJalisco 46.8
- 2MexicaliBaja California 38.1
- 3GuadalajaraJalisco 37.4
- 4XonacatlánMéxico 37.3
- 5AguascalientesAguascalientes 36.2
- 6Ciudad Benito JuárezNuevo León 33.9
- 7San Salvador TizatlalliMéxico 32.9
- 8Ciudad NezahualcoyotlMéxico 30.0
- 9Zacatepec de HidalgoMorelos 27.5
- 10Santa AnitaJalisco 26.0
- 11Naucalpan de JuárezMéxico 23.8
- 12IrapuatoGuanajuato 23.6
- 13Mexico CityMexico City 23.1
- 14PueblaPuebla 22.7
- 15Santa CatarinaNuevo León 22.2
- 16Mixquiahuala de JuárezHidalgo 22.0
- 17Silao de la VictoriaGuanajuato 21.8
- 18CuautlaMorelos 21.7
- 18TijuanaBaja California 21.7
- 20CuernavacaMorelos 21.6
- 21San Martin Texmelucan de LabastidaPuebla 21.2
- 22Cadereyta JiménezNuevo León 20.7
- 22TepicNayarit 20.7
- 24ChihuahuaChihuahua 20.6
- 25TuxtlaChiapas 20.3
- 26ZapopanJalisco 20.2
- 27Ciudad General EscobedoNuevo León 19.5
- 28CelayaGuanajuato 18.9
- 29ApizacoTlaxcala 18.8
- 30León de los AldamaGuanajuato 18.7
- 31AbasoloGuanajuato 18.3
- 32San Luis PotosíSan Luis Potosí 17.7
- 32SalamancaGuanajuato 17.7
- 34La Providencia Siglo XXIHidalgo 17.4
- 35Ciudad ApodacaNuevo León 17.2
- 36TulancingoHidalgo 17.0
- 37San Luis de la PazGuanajuato 16.8
- 38MonterreyNuevo León 16.1
- 39TlaxcalaTlaxcala 15.9
- 40Santiago de QuerétaroQuerétaro 14.9
- 41Ciudad JuárezChihuahua 14.2
- 42GarcíaNuevo León 13.5
- 43TehuacánPuebla 13.4
- 43San Juan del RíoQuerétaro 13.4
- 43San Miguel de AllendeGuanajuato 13.4
- 46La PazBaja California Sur 11.3
- 47MéridaYucatán 8.1
- 48Victoria de DurangoDurango 0.0
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+