How green is Cergy?
Cergy has 74 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 32% of the city area. In summer, the hottest land surface zones sit 3.6 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 9.5 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Cergy ranks #482 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #65 of 115 in France.
74
m² green per inhabitant
32%
vegetation cover
+3.6 °C
hottest zones vs city mean
9.5
PM2.5 estimate µg/m³
16.4
PM10 estimate µg/m³
17.7
NO2 estimate µg/m³
445.8
Index · #482/828
City maps
Nearby in the rankings
This city is at position #482 of 828 worldwide.
| #rank | City | Country | Index |
|---|---|---|---|
| 479 | Ludwigshafen am Rhein | Germany | 444.3 |
| 480 | Nijmegen | Netherlands | 444.3 |
| 481 | Manfredonia | Italy | 445.2 |
| 482 | Cergy | France | 445.8 |
| 483 | Prešov | Slovakia | 445.8 |
| 484 | Ljubljana | Slovenia | 446.2 |
| 485 | Montpellier | France | 446.5 |
Method and caveats
Heat is land surface temperature, not air temperature. Air quality values are model estimates. Green area is vegetation extent detected by satellite, not tree height.