City report · United States
Winston-Salem
Measured across a 2 km radius around Downtown Winston-Salem, Winston-Salem, NC 27101, USA (12.57 km²)
- Tree cover
- 49.0%
- Air quality
- 89Moderate
- Trees in this area
- 154K
- More trees needed
- 0
- Area analysed
- 12.57 km²
- Satellite image
- Sep 11, 2026
Winston-Salem's tree count comes to 153,938 trees across 12.57 km² — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 89 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Healthy tree cover
49.0% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
153,938
Target trees
153,938
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 89Moderate
Observed Sep 21, 19:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
5.2
PM10
5.6
NO₂
5.9
O₃
108.0
SO₂
0.7
CO
154.0
Frequently asked
Questions about Winston-Salem
What is the tree count in Winston-Salem?
Winston-Salem has an estimated 153,938 trees across the 12.57 km² measured — 49.0% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Winston-Salem need?
Winston-Salem has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Winston-Salem right now?
The latest reading for Winston-Salem shows an AQI of 89 (Moderate), observed Sep 21, 19:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Winston-Salem'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 Downtown Winston-Salem; 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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