SmogRank / Countries / Mexico / March 2026
Most polluted cities in Mexico, March 2026
45 cities in Mexico ranked by their average PM2.5 over the 31 days. Worst: Xonacatlán at 31.3 µg/m³, #162 of 2,332 cities in the world. Cleanest: Atlixco at 6.3. A city needs measurements on 70% of the days to be ranked.
- 1XonacatlánMéxico 31.3
- 2San Salvador TizatlalliMéxico 30.5
- 3TlaquepaqueJalisco 27.7
- 4Hacienda Santa FeJalisco 26.3
- 5AguascalientesAguascalientes 26.0
- 6Zacatepec de HidalgoMorelos 24.5
- 7PueblaPuebla 23.8
- 8Mixquiahuala de JuárezHidalgo 23.4
- 9CuautlaMorelos 22.9
- 10CelayaGuanajuato 21.5
- 11Mexico CityMexico City 21.1
- 12YecapixtlaMorelos 20.6
- 13GuadalajaraJalisco 20.5
- 14Pachuca de SotoHidalgo 20.3
- 15TehuacánPuebla 19.0
- 16MexicaliBaja California 18.5
- 17MoreliaMichoacán 18.4
- 18TulancingoHidalgo 18.2
- 18SalamancaGuanajuato 18.2
- 20IrapuatoGuanajuato 18.1
- 21Tula de AllendeHidalgo 17.9
- 22Santa CatarinaNuevo León 17.7
- 22Santa AnitaJalisco 17.7
- 24CuernavacaMorelos 17.6
- 25La Providencia Siglo XXIHidalgo 17.3
- 26TlaxcalaTlaxcala 17.1
- 26León de los AldamaGuanajuato 17.1
- 28Santiago de QuerétaroQuerétaro 16.9
- 29TijuanaBaja California 16.5
- 30ChihuahuaChihuahua 16.2
- 31MonterreyNuevo León 15.9
- 32San Juan del RíoQuerétaro 15.8
- 33San Miguel de AllendeGuanajuato 15.0
- 33Ciudad Benito JuárezNuevo León 15.0
- 33Ciudad JuárezChihuahua 15.0
- 36ZapopanJalisco 14.8
- 36Ciudad General EscobedoNuevo León 14.8
- 38AbasoloGuanajuato 14.3
- 39Ciudad ApodacaNuevo León 14.0
- 40Cadereyta JiménezNuevo León 13.6
- 41GuanajuatoGuanajuato 13.3
- 42San Luis PotosíSan Luis Potosí 12.6
- 43GarcíaNuevo León 12.2
- 44La PazBaja California Sur 10.0
- 45AtlixcoPuebla 6.3
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+