City report · United States
Boise
Measured across a 2 km radius around Downtown, Boise, ID, USA (12.57 km²)
- Tree cover
- 42.4%
- Air quality
- 36Good
- Trees in this area
- 133K
- More trees needed
- 0
- Area analysed
- 12.56 km²land, in a 12.57 km² circle
- Satellite image
- Sep 19, 2026
Boise's tree count comes to 133,070 trees across 12.56 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 36 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
42.4% tree cover against a 30% healthy-neighbourhood target, across 12.56 km² of land.
Trees in this area
133,070
Target trees
133,070
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 36Good
Observed Sep 21, 17:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
3.7
PM10
5.1
NO₂
0.0
O₃
101.0
SO₂
0.2
CO
109.0
Frequently asked
Questions about Boise
What is the tree count in Boise?
Boise has an estimated 133,070 trees across the 12.56 km² of land measured — 42.4% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Boise need?
Boise has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Boise right now?
The latest reading for Boise shows an AQI of 36 (Good), observed Sep 21, 17:00 local time via Open-Meteo / CAMS. Air quality is satisfactory for everyone.
How is Boise'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; 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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