- Tree cover
- 42.3%
- Air quality
- 29Good
- Trees in this area
- 78.9K
- More trees needed
- 0
- Area analysed
- 7.47 km²land, in a 12.57 km² circle
- Satellite image
- Aug 25, 2026
Madison's tree count comes to 78,936 trees across 7.47 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 29 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
42.3% tree cover against a 30% healthy-neighbourhood target, across 7.47 km² of land.
Trees in this area
78,936
Target trees
78,936
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 29Good
Observed Sep 21, 22:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
5.4
PM10
5.7
NO₂
4.0
O₃
58.0
SO₂
0.4
CO
140.0
Frequently asked
Questions about Madison
What is the tree count in Madison?
Madison has an estimated 78,936 trees across the 7.47 km² of land measured — 42.3% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Madison need?
Madison has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Madison right now?
The latest reading for Madison shows an AQI of 29 (Good), observed Sep 21, 22:00 local time via Open-Meteo / CAMS. Air quality is satisfactory for everyone.
How is Madison'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 Madison; 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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