How green is Troyes?
Troyes has 38 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 17% of the city area. In summer, the hottest land surface zones sit 2.2 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 7.3 µg/m³. Satellite records cover 8 years, 2018 to 2025. Overall, Troyes ranks #182 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #14 of 115 in France.
38
m² green per inhabitant
17%
vegetation cover
+2.2 °C
hottest zones vs city mean
7.3
PM2.5 estimate µg/m³
13.6
PM10 estimate µg/m³
14.5
NO2 estimate µg/m³
309.3
Index · #182/828
City maps
Nearby in the rankings
This city is at position #182 of 828 worldwide.
| #rank | City | Country | Index |
|---|---|---|---|
| 179 | Logroño | Spain | 308.0 |
| 180 | Koszalin | Poland | 308.3 |
| 181 | Schweinfurt | Germany | 308.3 |
| 182 | Troyes | France | 309.3 |
| 183 | Racibórz | Poland | 309.8 |
| 184 | Vannes | France | 310.2 |
| 185 | Lorient | France | 311.0 |
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.