City report · United States
Tacoma
Measured across a 2 km radius around New Tacoma, Tacoma, WA, USA (12.57 km²)
- Tree cover
- 24.0%
- Air quality
- 68Moderate
- Trees in this area
- 66.4K
- More trees needed
- 16.6K
- Area analysed
- 11.07 km²land, in a 12.57 km² circle
- Satellite image
- Sep 16, 2026
Tacoma's tree count comes to 66,426 trees across 11.07 km² of land — 6 points below the 30% tree-cover level considered healthy for this area, meaning roughly 16,606 more trees would close the gap. Air quality currently reads AQI 68 (Moderate): Unusually sensitive people should consider limiting long outdoor exertion.
Tree cover detail
Below target
24.0% tree cover against a 30% healthy-neighbourhood target, across 11.07 km² of land.
Trees in this area
66,426
Target trees
83,032
More trees needed
16,606
CO₂ if planted / yr
365.3 t
Air quality detail
AQI 68Moderate
Observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Unusually sensitive people should consider limiting long outdoor exertion.
PM2.5
7.8
PM10
8.6
NO₂
15.2
O₃
44.0
SO₂
1.2
CO
395.0
Frequently asked
Questions about Tacoma
What is the tree count in Tacoma?
Tacoma has an estimated 66,426 trees across the 11.07 km² of land measured — 24.0% tree cover, 6 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Tacoma need?
Tacoma needs roughly 16,606 more trees to close a 6-point shortfall against its 30% tree-cover target — about 365.3 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Tacoma right now?
The latest reading for Tacoma shows an AQI of 68 (Moderate), observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Unusually sensitive people should consider limiting long outdoor exertion.
How is Tacoma'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 New Tacoma; 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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