City report · United States
Charleston
Measured across a 2 km radius around South of Broad, Charleston, SC 29401, USA (12.57 km²)
- Tree cover
- 25.0%
- Air quality
- 39Good
- Trees in this area
- 35.6K
- More trees needed
- 7.1K
- Area analysed
- 5.69 km²land, in a 12.57 km² circle
- Satellite image
- Sep 19, 2026
Charleston's tree count comes to 35,579 trees across 5.69 km² of land — 5 points below the 30% tree-cover level considered healthy for this area, meaning roughly 7,116 more trees would close the gap. Air quality currently reads AQI 39 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Below target
25.0% tree cover against a 30% healthy-neighbourhood target, across 5.69 km² of land.
Trees in this area
35,579
Target trees
42,695
More trees needed
7,116
CO₂ if planted / yr
156.6 t
Air quality detail
AQI 39Good
Observed Sep 21, 23:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
11.2
PM10
14.2
NO₂
12.2
O₃
48.0
SO₂
1.4
CO
156.0
Frequently asked
Questions about Charleston
What is the tree count in Charleston?
Charleston has an estimated 35,579 trees across the 5.69 km² of land measured — 25.0% tree cover, 5 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Charleston need?
Charleston needs roughly 7,116 more trees to close a 5-point shortfall against its 30% tree-cover target — about 156.6 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Charleston right now?
The latest reading for Charleston shows an AQI of 39 (Good), observed Sep 21, 23:00 local time via Open-Meteo / CAMS. Air quality is satisfactory for everyone.
How is Charleston'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 South of Broad; 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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