City report · United States
Manchester
Measured across a 2 km radius around Corey Square, Manchester, NH, USA (12.57 km²)
- Tree cover
- 47.5%
- Air quality
- 32Good
- Trees in this area
- 146K
- More trees needed
- 0
- Area analysed
- 12.27 km²land, in a 12.57 km² circle
- Satellite image
- Sep 15, 2026
Manchester's tree count comes to 145,644 trees across 12.27 km² of land — already at or above the 30% tree-cover level considered healthy for this area. Air quality currently reads AQI 32 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Healthy tree cover
47.5% tree cover against a 30% healthy-neighbourhood target, across 12.27 km² of land.
Trees in this area
145,644
Target trees
145,644
More trees needed
0
CO₂ if planted / yr
0 kg
Air quality detail
AQI 32Good
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
5.8
PM10
6.2
NO₂
7.4
O₃
49.0
SO₂
0.6
CO
169.0
Frequently asked
Questions about Manchester
What is the tree count in Manchester?
Manchester has an estimated 145,644 trees across the 12.27 km² of land measured — 47.5% tree cover, already past the 30% tree-cover target set for this area.
How many more trees does Manchester need?
Manchester has already reached its tree-cover target, so no additional trees are needed to close the gap.
What is the air quality (AQI) in Manchester right now?
The latest reading for Manchester shows an AQI of 32 (Good), observed Sep 21, 23:00 local time via Open-Meteo / CAMS. Air quality is satisfactory for everyone.
How is Manchester'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 Corey Square; 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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