How green is San Francisco?

San Francisco has 375 square metres of green space per inhabitant in 2025 satellite data. Vegetation covers 27% of the city area. In summer, the hottest land surface zones sit 8.2 °C above the city-wide average (land surface temperature, not air temperature). The PM2.5 model estimate for 2025 is 9.6 µg/m³. Overall, San Francisco ranks #585 of 828 reviewed cities in the Green City Index (green space, land surface heat and air quality combined), and #3 of 3 in United States.

375
m² green per inhabitant
27%
vegetation cover
+8.2 °C
hottest zones vs city mean
9.6
PM2.5 estimate µg/m³
22.9
PM10 estimate µg/m³
17.4
NO2 estimate µg/m³
491.0
Index · #585/828
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City maps

Satellite — San Francisco Satellite Green cover — San Francisco Green cover Detected green vegetation Heat — San Francisco Heat cooler hotter NO2 — San Francisco NO2 lower higher µg/m³ PM2.5 — San Francisco PM2.5 lower higher µg/m³ PM10 — San Francisco PM10 lower higher µg/m³

Nearby in the rankings

This city is at position #585 of 828 worldwide.

#rank City Country Index
582 Clamart France 489.3
583 Livorno Italy 489.8
584 Santa Cruz de Tenerife Spain 490.7
585 San Francisco United States 491.0
586 Cannes France 491.0
587 Pernik Bulgaria 491.3
588 Bonn Germany 491.3

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.