
City report · United States
Santa Maria
Measured across a 2 km radius around Santa Maria, CA, USA (12.57 km²)
- Tree cover
- 6.4%
- Air quality
- 47Good
- Trees in this area
- 20.1K
- More trees needed
- 74.1K
- Area analysed
- 12.57 km²
- Satellite image
- Sep 19, 2026
Santa Maria's tree count comes to 20,106 trees across 12.57 km² — 24 points below the 30% tree-cover level considered healthy for this area, meaning roughly 74,142 more trees would close the gap. Air quality currently reads AQI 47 (Good): Air quality is satisfactory for everyone.
Tree cover detail
Critically low
6.4% tree cover against a 30% healthy-neighbourhood target, across 12.57 km².
Trees in this area
20,106
Target trees
94,248
More trees needed
74,142
CO₂ if planted / yr
1,631 t
Air quality detail
AQI 47Good
Observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Values in µg/m³.
Health signal
Air quality is satisfactory for everyone.
PM2.5
8.3
PM10
12.7
NO₂
2.2
O₃
72.0
SO₂
0.5
CO
119.0
Frequently asked
Questions about Santa Maria
What is the tree count in Santa Maria?
Santa Maria has an estimated 20,106 trees across the 12.57 km² measured — 6.4% tree cover, 24 percentage points short of the 30% tree-cover target set for this area.
How many more trees does Santa Maria need?
Santa Maria needs roughly 74,142 more trees to close a 24-point shortfall against its 30% tree-cover target — about 1,631 t of extra CO₂ absorbed per year once grown.
What is the air quality (AQI) in Santa Maria right now?
The latest reading for Santa Maria shows an AQI of 47 (Good), observed Sep 21, 20:00 local time via Open-Meteo / CAMS. Air quality is satisfactory for everyone.
How is Santa Maria'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 Santa Maria; 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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