SmogRank / Countries / Mexico / México
Most polluted cities in México, Mexico
3 measured cities, last 30 days; 3 above the WHO 24-hour guideline. Worst: San Salvador Tizatlalli at 19.3 µg/m³, #173 in the world.
3 moderate
- 1San Salvador Tizatlalli 19.3
- 2Ciudad Nezahualcoyotl 18.0
- 3Naucalpan de Juárez 17.9
Estimated: cities without a monitor
México cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.
| City | 7-day estimate |
|---|---|
| Tlalnepantla | ≈ 13 µg/m³ |
| Cuautitlán Izcalli | ≈ 13 µg/m³ |
| Toluca | ≈ 11 µg/m³ |
| Ciudad López Mateos | ≈ 13 µg/m³ |
| Ojo de Agua | ≈ 14 µg/m³ |
| Xico | ≈ 10 µg/m³ |
| Ixtapaluca | ≈ 10 µg/m³ |
| Nicolás Romero | ≈ 13 µg/m³ |
| Zumpango | ≈ 14 µg/m³ |
| Coacalco | ≈ 14 µg/m³ |
| Buenavista | ≈ 13 µg/m³ |
| Cuautitlán | ≈ 14 µg/m³ |
| Chicoloapan | ≈ 10 µg/m³ |
| Chalco | ≈ 10 µg/m³ |
| San Pablo de las Salinas | ≈ 14 µg/m³ |
| Huixquilucan | ≈ 12 µg/m³ |
| Texcoco de Mora | ≈ 10 µg/m³ |
| Tepexpan | ≈ 11 µg/m³ |
| Los Reyes Acaquilpan | ≈ 10 µg/m³ |
| Fuentes del Valle | ≈ 13 µg/m³ |
| Santa María Chimalhuacán | ≈ 10 µg/m³ |
| San Mateo Atenco | ≈ 11 µg/m³ |
| Tultepec | ≈ 14 µg/m³ |
| Zinacantepec | ≈ 11 µg/m³ |
| Santiago Teyahualco | ≈ 14 µg/m³ |
| Teoloyucan | ≈ 14 µg/m³ |
| San Buenaventura | ≈ 10 µg/m³ |
| Melchor Ocampo | ≈ 14 µg/m³ |
| Tepotzotlán | ≈ 14 µg/m³ |
| Santa Teresa | ≈ 9 µg/m³ |
| San Jerónimo Cuatro Vientos | ≈ 10 µg/m³ |
| Coyotepec | ≈ 14 µg/m³ |
| San Martín Azcatepec | ≈ 11 µg/m³ |
| San Pablo Autopan | ≈ 11 µg/m³ |
| San Isidro | ≈ 10 µg/m³ |
| Amecameca | ≈ 10 µg/m³ |
| San José Guadalupe Otzacatipan | ≈ 11 µg/m³ |
| Metepec | ≈ 11 µg/m³ |
| Tultitlán de Mariano Escobedo | ≈ 13 µg/m³ |
| San Francisco Acuautla | ≈ 10 µg/m³ |
Updated 2026-10-01 17:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.