City report · United States
Daly City
Measured across a 2 km radius around Daly City, CA, USA (12.57 km²)
- Tree cover
- 24.8%
- Air quality
- 51Moderate
- Trees in this area
- 77.9K
- More trees needed
- 16.3K
- Area analysed
- 12.57 km²
- Satellite image
- Sep 12, 2026
Daly City's tree count comes to 77,911 trees across 12.57 km² — 5 points below the 30% tree-cover level considered healthy for this area, meaning roughly 16,336 more trees would close the gap. Air quality currently reads AQI 51 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
24.8% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
77,911
Target trees
94,247
More trees needed
16,336
CO₂ if planted / yr
359.4 t
Air quality detail
AQI 51Moderate
Observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
9.6
PM10
15.4
NO₂
5.4
O₃
64.0
SO₂
0.8
CO
112.0
Frequently asked
Questions about Daly City
What is the tree count in Daly City?
Daly City has an estimated 77,911 trees across the 12.57 km² measured — 24.8% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Daly City need?
Daly City needs roughly 16,336 more trees to close a 5-point shortfall against its 30% tree-cover target — about 359.4 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Daly City right now?
The latest reading for Daly City shows an AQI of 51 (Moderate), observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Daly City's tree cover and air quality measured?
Tree cover is measured from Sentinel-2 L2A (ESA Copernicus) via Earth Search satellite imagery at 10 m detail across a 2 km radius around Daly City; the tree count is an estimate derived from that cover. Air-quality readings come from Open-Meteo / CAMS and may differ from street-level monitors.
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